Table 6.23 -- EDCS attributes whose label begins with S
| Label | Definition | Attribute value type | EQ label | Code |
| SALINITY | The ratio of <<MASS>> of dissolved <MATERIAL> in seawater to the <<MASS>> of seawater; salinity. | REAL | MASS_FRACTION | 1163 |
| SAND_DUNE_ORIENTATION | The <<GEODETIC_AZIMUTH>> of the characteristic alignment of a <SAND_DUNE> as caused by the prevailing <WIND>s; the sand dune orientation. | REAL | PLANE_ANGLE | 1164 |
|
SANDFORD_ROBERTSON_GRAZING- _REFLECTANCE_PARAMETER |
The geometric impact parameter (b) governing reflectance at grazing angles under the Sandford-Robertson BRDF model. | REAL | PURE_NUMBER | 1165 |
|
SANDFORD_ROBERTSON_INTEG- _DIFFUSE_DHR_PARAMETER |
The diffuse hemispherical-directional BRDF parameter (ρd) of the Sandford-Robertson BRDF model, related to (but not to be confused with) the <<DIRECTIONAL_HEMISPHERICAL_REFLECTIVITY>> of the <SURFACE> as a whole and the <<BEARD_MAXWELL_INTEG_DIFFUSE_BRDF_PARAMETER>>. This quantity is wavelength-band integrated, and the particular band is specified separately. | REAL | PURE_NUMBER | 1166 |
|
SANDFORD_ROBERTSON_INTEG- _HMISPH_EMITTANCE_PARAMETER |
The hemispherical emittance parameter (Ε) of the Sandford-Robertson BRDF model, related to (but not to be confused with) the hemispherical emittance of the <SURFACE> as a whole. This quantity is wavelength-band integrated, and the particular band is specified separately. | REAL | PURE_NUMBER | 1167 |
|
SANDFORD_ROBERTSON_LOBE- _WIDTH_PARAMETER |
The geometric parameter (e) governing the width of the specular lobe in the Sandford-Robertson BRDF model. Related to (but not to be confused with) the <<PHONG_INTEG_SHININESS_PARAMETER>>. | REAL | PURE_NUMBER | 1168 |
| SATELLITE_NAME | The name of a <SATELLITE>. | ENUMERATION | 1169 | |
|
SCND_WEAPON_DEPLOYED_POS- _CATEGORY |
A category describing the position of the secondary weapon <SYSTEM> of an <OBJECT>. | ENUMERATION | 1170 | |
| SCND_WEAPON_DEPLOYED_POSITION | A number between 0 and 1 inclusive representing the linearly-scaled fractional deployment of the secondary weapon <SYSTEM> of an <OBJECT>. Zero means fully stowed/retracted and one means fully deployed. | REAL | PURE_NUMBER | 1171 |
| SCRAP_TYPE | The type of scrap. | ENUMERATION | 1172 | |
| SEA_ICE_TYPE | The type of <ICE> in the <SEA>. | ENUMERATION | 1173 | |
| SEA_NAME | The name of a major <WATER_BODY>; the sea name. Examples of major <WATER_BODY>s: a <SEA>, <MARINE_STRAIT>, <MARINE_GULF>, or <MARINE_BAY>. | ENUMERATION | 1174 | |
| SEA_STATE_CATEGORY | The roughness of a <WATER_BODY_SURFACE> in terms of the Douglas sea-state scale, a <SYSTEM> of categorized mean <WATER_WAVE> heights; the sea state category. | ENUMERATION | 1175 | |
| SEA_STATE_NOISE_POWER_LEVEL | The power level of acoustic noise energy in a <WATER_BODY> due to <WATER_WAVE>s; the sea state noise. | REAL | PRESSURE_POWER_LEVEL | 1176 |
| SEARCH_LIGHT_INTENSITY | A number between 0 and 1 inclusive representing the linearly-scaled fractional intensity of moveable external <LIGHTING> used to illuminate the environment in arbitrary <DIRECTION>s; the spotlight, flashlight or search light intensity. Zero means unlit and one means maximum intensity. | REAL | PURE_NUMBER | 1177 |
| SEASON | The division of the year (one of four) marked by the passage of the <SUN> through an equinox or solstice. | ENUMERATION | 1178 | |
| SEASONAL_TENT_LOCATION | The season in which the <TENT>s of a nomadic people are at a given <LOCATION>. | ENUMERATION | 1179 | |
|
SECONDARY_AERIAL_DEPLOYED- _POSITION |
A number between 0 and 1 inclusive representing the linearly-scaled fractional deployment position of the secondary <AERIAL> on an <OBJECT>. Zero means fully stowed/retracted and one means fully deployed. | REAL | PURE_NUMBER | 1180 |
|
SECONDARY_AXIS_VELOCITY- _COMPONENT |
The velocity component of an <OBJECT> along the secondary axis of a defined spatial reference frame. | REAL | SPEED | 1181 |
| SECONDARY_BREAKER_AZIMUTH | The horizontal angle measured in a clockwise <DIRECTION> from above from planetary geodetic north to a <LINE> drawn perpendicular to the direction of propagation of secondary breaking <WATER_WAVE>s in the wave spectra of a <SURF_ZONE>; the secondary breaker azimuth. | REAL | PLANE_ANGLE | 1182 |
|
SECONDARY_BREAKER_RELATIVE- _ANGLE |
The horizontal angle the secondary breaking <WATER_WAVE>s make with respect to the <BEACH>. The value increases from 0 when the <LINE> of the <WATER_WAVE>s parallels the <BEACH>, towards 90 arc degrees on either the right or left flank as seen from <VESSEL>s approaching the <BEACH>; the secondary breaker relative angle. | REAL | PLANE_ANGLE | 1183 |
| SECONDARY_BROADCAST_FREQUENCY | The designated secondary broadcast <<FREQUENCY>> for a communications <DEVICE>. | REAL | FREQUENCY | 1184 |
| SECONDARY_DOOR_OPEN_POSITION | A number between 0 and 1 inclusive representing the linearly-scaled fractional opening of the secondary <DOOR> of an <OBJECT>. Zero means fully closed and one means fully open. | REAL | PURE_NUMBER | 1185 |
|
SECONDARY_MATERIAL- _CHARACTERISTIC |
The characteristics of the composition of the secondary <MATERIAL> of an <OBJECT>. | ENUMERATION | 1186 | |
| SECONDARY_MATERIAL_TYPE | The type of composition of the secondary <MATERIAL> of an <OBJECT>. | ENUMERATION | 1187 | |
| SECONDARY_SURFACE_AIR_VELOCITY | The velocity of the <AIR> at the secondary <SURFACE> of an <OBJECT>, generally the bottom, back, or inner side of a layer of <MATERIAL>. | REAL | SPEED | 1188 |
| SECONDARY_SURFACE_TEMPERATURE | The temperature of the medium in contact with the secondary <SURFACE> of an <OBJECT>, generally the top, front, or outer side of a layer of <MATERIAL>; typically used as a boundary condition in thermal solutions. | REAL | THERMO_TEMPERATURE | 1189 |
|
SECONDARY_SURFACE_THERMAL- _CONDITION |
The physical boundary condition at the secondary <SURFACE> of an <OBJECT>, generally the top, front, or outer side of a layer of <MATERIAL>, that accounts for the thermal interface of an <OBJECT> with the environment at that <SURFACE>; the secondary surface thermal condition. | ENUMERATION | 1190 | |
| SECONDARY_SWELL_WAVE_DIRECTION | The <<GEODETIC_AZIMUTH>> of the <DIRECTION> from which secondary <SWELL_WAVE>s are arriving. | REAL | PLANE_ANGLE | 1191 |
| SECONDARY_SWELL_WAVE_HEIGHT | The mean <<HEIGHT>> of the significant (highest one-third) secondary <SWELL_WAVE>s. | REAL | LENGTH | 1192 |
| SECONDARY_SWELL_WAVE_PERIOD | The mean <<TIME_QUANTITY>> that a complete cycle (usually crest to crest or trough to trough) of a secondary <SWELL_WAVE> takes to pass a given fixed point. | REAL | TIME | 1193 |
| SECONDARY_WAVE_DIRECTION | The <<GEODETIC_AZIMUTH>> of the <DIRECTION> from which secondary <WATER_WAVE>s (combined <WIND_WAVE> and <SWELL_WAVE>) in the wave spectra are arriving. | REAL | PLANE_ANGLE | 1194 |
| SECTOR_DIRECTION | The <<GEODETIC_AZIMUTH>> of the <DIRECTION> of an angular sector for which the measurement applies. | REAL | PLANE_ANGLE | 1195 |
| SECURITY_LEVEL | The highest level of security associated with an <OBJECT>. | ENUMERATION | 1196 | |
| SECURITY_LOCK_TYPE | The type of a security lock. | ENUMERATION | 1197 | |
|
SEDIMENT_ATTENUATION- _FREQUENCY_EXPONENT |
The quantity of frequency dependence of the absorption and scattering of acoustic energy as it travels through a <WATER_BODY_FLOOR> in <<WATER_DEPTH>>s of 200 metres or less; the sediment attenuation exponent. | REAL | PURE_NUMBER | 1198 |
| SEDIMENT_ATTENUATION_GRADIENT | The rate of change with respect to <<DEPTH_BELOW_WATER_BODY_FLOOR>> of the distance and frequency gradient of the absorption and scattering of acoustic energy travelling through <SEDIMENT>; the sediment attenuation gradient. | REAL | POWER_LEVEL_DIFF_LEN_FREQ | 1199 |
|
SEDIMENT_BASEMENT_REFLECTION- _COEFFICIENT |
The ratio of reflected acoustic energy to the incident acoustic energy at a <WATER_BODY_FLOOR> sediment/basement interface; the sediment basement reflection coefficient. | REAL | PURE_NUMBER | 1200 |
| SEDIMENT_BELOW_LAYERS_DENSITY | The density of layers of deep <SEDIMENT>s located below near-surface <SEDIMENT>s on a <WATER_BODY_FLOOR>; the sediment below layers density. | REAL | VOLUMIC_MASS | 1201 |
|
SEDIMENT_COMPRESSIONAL- _ATTENUATION |
The depth and frequency gradient of absorption and scattering of acoustic energy caused by compression as it travels through a layer of <SEDIMENT> on a <WATER_BODY_FLOOR>; the sediment compressional attenuation. | REAL | POWER_LEVEL_DIFF_LEN_FREQ | 1202 |
|
SEDIMENT_COMPRESSIONAL_SOUND- _SPEED |
The compressional speed of sound in a layer of <SEDIMENT> on a <WATER_BODY_FLOOR>. | REAL | SPEED | 1203 |
| SEDIMENT_CONDUCTIVITY | The electrical conductivity of <SEDIMENT> on a <WATER_BODY_FLOOR>. | REAL | ELECTRIC_CONDUCTIVITY | 1204 |
| SEDIMENT_GRAIN_SIZE | The negative of the logarithm to the base 2 of the grain diameter of <SEDIMENT> expressed in millimetres; the grain size. | REAL | PURE_NUMBER | 1205 |
|
SEDIMENT_GROSS_BOTTOM_LOSS- _CLASS |
The numeric identifier of a gross bottom loss descriptor/class of <SEDIMENT> on a <WATER_BODY_FLOOR> that indicates general acoustic propagation conditions. | INDEX | 1206 | |
| SEDIMENT_LAYER_DENSITY | The <<MATERIAL_DENSITY>> of a layer of <SEDIMENT> on a <WATER_BODY_FLOOR>. | REAL | VOLUMIC_MASS | 1207 |
|
SEDIMENT_MEAN_BACKGROUND- _THICKNESS |
The mean background <<THICKNESS>> of the layers of <SEDIMENT> located just below a <WATER_BODY_FLOOR>. | REAL | LENGTH | 1208 |
| SEDIMENT_REFLECTIVITY_ANGLE | The angle between a layer of <SEDIMENT> on a <WATER_BODY_FLOOR> and an acoustic ray that is reflected from it; the sediment reflectivity angle. | REAL | PLANE_ANGLE | 1209 |
| SEDIMENT_SHEAR_ATTENUATION | The depth and frequency gradient of absorption and scattering of acoustic energy caused by shear as it travels through a layer of <SEDIMENT> on a <WATER_BODY_FLOOR>; the sediment shear attenuation. | REAL | POWER_LEVEL_DIFF_LEN_FREQ | 1210 |
| SEDIMENT_SOUND_SPEED_CURVATURE | The sound speed profile curvature parameter of a layer of <SEDIMENT> on a <WATER_BODY_FLOOR>. | REAL | PURE_NUMBER | 1211 |
|
SEDIMENT_SOUND_SPEED- _GRADIENT_TOP |
The rate at which sound speed changes with depth in <SEDIMENT>s on a <WATER_BODY_FLOOR>. The value is evaluated at the water-sediment interface of that <WATER_BODY_FLOOR>; the sediment top sound speed gradient. | REAL | RATE | 1212 |
| SEDIMENT_SOUND_SPEED_SHEAR | The shear speed of sound in <SEDIMENT>s on a <WATER_BODY_FLOOR>. | REAL | SPEED | 1213 |
| SEDIMENT_SRF_ATTENUATION | The absorption and scattering coefficient of acoustic energy travelling through <SEDIMENT> just below a <WATER_BODY_FLOOR>; the sediment surface attenuation. | REAL | POWER_LEVEL_DIFF_LEN_FREQ | 1214 |
|
SEDIMENT_SRF_ATTENUATION- _GRADIENT |
The distance and frequency gradient of <<SEDIMENT_SRF_ATTENUATION>>. | REAL | GRAD_POWER_LEVEL_DIFF_LEN_FREQ | 1215 |
| SEDIMENT_SURFACE_DENSITY | The <<MATERIAL_DENSITY>> of the top-most layer of <SEDIMENT> on a <WATER_BODY_FLOOR>; the sediment surface density. | REAL | VOLUMIC_MASS | 1216 |
| SEDIMENT_THIN_LAYER_DENSITY | The <<MATERIAL_DENSITY>> of a surficial layer of <SEDIMENT> on a <WATER_BODY_FLOOR>; the sediment thin-layer density. | REAL | VOLUMIC_MASS | 1217 |
| SEDIMENT_THIN_LAYER_THICKNESS | The <<THICKNESS>> of the surficial thin-layer of <SEDIMENT> on a <WATER_BODY_FLOOR>; the sediment thin-layer <<THICKNESS>>. | REAL | LENGTH | 1218 |
| SEDIMENT_TWO_WAY_TRAVEL_TIME | The quantity of time required for acoustic energy to travel vertically from a <WATER_BODY_FLOOR> to the sediment/basement interface and back to the <SURFACE> of that <WATER_BODY_FLOOR>; the sediment two-way travel time. | REAL | TIME | 1219 |
|
SEDIMENT_WATER_SOUND_SPEED- _RATIO |
The ratio of the sound speed in the <SEDIMENT> to that in the column of <WATER> above it measured at a <WATER_BODY_FLOOR>. | REAL | PURE_NUMBER | 1220 |
| SENSIBLE_HEAT_FLUX | The rate of heat flow between a <PLANETARY_SURFACE> and the <ATMOSPHERE>; the sensible heat flux. | REAL | IRRADIANCE | 1221 |
| SERVICE_BRANCH | The branch of a military service or organization. | ENUMERATION | 1222 | |
| SEVERE_WEATHER_PRESENT | An indication that severe weather is present. Severe weather is any atmospheric condition potentially destructive or hazardous to <HUMAN>s. | BOOLEAN | 1223 | |
| SHARP_CURVE_RADIUS | The radius of curvature of a <SHARP_CURVE> in a <TERRAIN_TRANSPORTATION_ROUTE>. | REAL | LENGTH | 1224 |
| SHELTER_BELT | An indication that an <OBJECT> (for example: a linear stand of <TREE>s) functions as a shelter belt, protecting other <OBJECT>s from the effects of adverse weather. | BOOLEAN | 1225 | |
|
SHIPPING_NOISE_ICE_REGION- _IDENTIFIER |
The numeric identifier of a shipping noise <REGION> of <ICE> in a <WATER_BODY>. | INDEX | 1226 | |
|
SHIPPING_NOISE_MEASUREMENT- _STATUS |
The measurement status of a shipping noise level in a <WATER_BODY>; typically taken at 50 hertz. | ENUMERATION | 1227 | |
| SHIPPING_NOISE_SEASON_TYPE | The seasonally adjusted acoustic noise characteristics (for example: spectral class, standard deviation, or decibels per octave roll off) in a <WATER_BODY> due to distant shipping; the shipping noise season type. | ENUMERATION | 1228 | |
|
SHIPPING_NOISE_SPECTRAL- _CLASS_CURVE_IDENTIFIER |
The numeric identifier of a shipping noise spectral-class curve in a <WATER_BODY>. | INDEX | 1229 | |
|
SHIPPING_NOISE_SPECTRAL- _POWER_LEVEL_ROLLOFF |
The gradient in the shipping noise spectral power level in a <WATER_BODY> as a function of <<FREQUENCY>>, typically above 300 hertz; the shipping noise rolloff. | REAL | POWER_LEVEL_DIFF_FREQ_GRADIENT | 1230 |
| SHIPPING_NOISE_STD_DEV | The standard deviation of a <SET> of shipping noise spectral power level measurements in a <WATER_BODY>; typically taken at 50 hertz. | REAL | FIELD_OR_POWER_LEVEL_DIFF | 1231 |
|
SHIPPING_NOISE_STD_DEV- _REGION_IDENTIFIER |
The numeric identifier of a shipping noise standard deviation <REGION> of a <WATER_BODY>. | INDEX | 1232 | |
| SHORELINE_PHYSIOGRAPHY | The topography and types of <MATERIAL> found on a <SHORE>. | ENUMERATION | 1233 | |
| SHORELINE_TYPE | The type of physical characteristics of a <SHORELINE>. | ENUMERATION | 1234 | |
|
SHOWALTER_ATMOSPHERE- _STABILITY_INDEX |
The degree of stability of the layer of the <ATMOSPHERE> extending from a level near the <PLANETARY_SURFACE> of the <EARTH> to the 500 hectoPascal (500 millibar) pressure as calculated by the Showalter method; the Showalter atmosphere stability index. | REAL | PURE_NUMBER | 1235 |
| SIDES_VISIBLE | The sides of an <OBJECT> that are visible. | ENUMERATION | 1236 | |
|
SIGMA_COORDINATE_VERTICAL- _VELOCITY |
The <<WIND_OMEGA>> through a pressure <SURFACE> normalized by the <<ATM_PRESSURE>> at the <PLANETARY_SURFACE> of the <EARTH>; the sigma coordinate vertical velocity. | REAL | RATE | 1237 |
| SIGMA_CROSSWIND_SPREADING_RATE | The rate of change per unit time of <<SIGMA_WIDTH_CROSSWIND>>; the sigma crosswind spreading rate. | REAL | SPEED | 1238 |
| SIGMA_DOWNWIND_SPREADING_RATE | The rate of change per unit time of <<SIGMA_WIDTH_DOWNWIND>>; the sigma downwind spreading rate. | REAL | SPEED | 1239 |
| SIGMA_VERTICAL_SPREADING_RATE | The rate of change per unit time of <<SIGMA_WIDTH_VERTICAL>>; the sigma vertical spreading rate. | REAL | SPEED | 1240 |
| SIGMA_WIDTH_CROSSWIND | The horizontal dimension of a <PLUME> or <PUFF> measured in the crosswind dimension between points that are symmetric about the centre of <<MASS>> where 68% of the total <<MASS>> is found; the sigma width crosswind. | REAL | LENGTH | 1241 |
| SIGMA_WIDTH_DOWNWIND | The horizontal dimension of a <PLUME> or <PUFF> measured in the downwind dimension between points that are symmetric about the centre of <<MASS>> where 68% of the total <<MASS>> is found; the sigma width downwind. | REAL | LENGTH | 1242 |
| SIGMA_WIDTH_VERTICAL | The vertical height of a <PLUME> or <PUFF> measured along the vertical dimension between points that are symmetric about the centre of <<MASS>> where 68% of the total <<MASS>> is found; the vertical sigma width. | REAL | LENGTH | 1243 |
| SIGNAL_LIGHT_CHARACTER | A characterization of the signal light emitted by one or more <LIGHT>s at one <LOCATION>. This information is formatted in a Basic Latin string giving the class, number, and colours of flashes or occultations. Examples: "Q(6)+L F1", "VQ G", and "L F1 (3+2)WR". | CONSTRAINED_STRING | 1244 | |
| SIGNAL_LIGHT_PATTERN | The temporal pattern of one complete period of a repeating signal <LIGHT>. The pattern is formatted in a Basic Latin string as a list of relative duty cycle lengths representing the alternating on and off times of the signal beginning with the length of an ON signal. The duty cycle lengths are expressed as integers separated by commas; spaces are ignored. | CONSTRAINED_STRING | 1245 | |
| SIGNAL_LIGHT_PATTERN_COUNT | The number of flashes/occultations in a group flashing/occulting <<SIGNAL_LIGHT_PATTERN>>; the signal light pattern count. | COUNT | 1246 | |
| SIGNAL_LIGHT_SEQUENCE | The specification of the sequence of <<TIME_QUANTITY>>s occupied by intervals of light and dark (eclipse) of a signal <LIGHT>. | STRING | 1247 | |
| SIGNIF_PRIMARY_BREAKER_HEIGHT | The mean <<HEIGHT>> measured from trough to crest of the significant (highest one-third) primary breaking <WATER_WAVE>s in a <SURF_ZONE> wave spectrum. | REAL | LENGTH | 1248 |
|
SIGNIF_SECONDARY_BREAKER- _HEIGHT |
The mean <<HEIGHT>> measured from trough to crest of the significant (highest one-third) secondary breaking <WATER_WAVE>s in a <SURF_ZONE> wave spectrum. | REAL | LENGTH | 1249 |
| SIGNIF_SWELL_WAVE_HEIGHT | The mean <<HEIGHT>> measured from trough to crest of the significant (highest one-third) <SWELL_WAVE>s. | REAL | LENGTH | 1250 |
| SIGNIF_WAVE_HEIGHT | The mean <<HEIGHT>> measured from trough to crest of the significant (highest one-third) <WATER_WAVE>s (combined <WIND_WAVE>s and <SWELL_WAVE>s). | REAL | LENGTH | 1251 |
| SIGNIF_WIND_WAVE_HEIGHT | The mean height of the significant (highest one-third) <WIND_WAVE>s, measured from trough to crest. | REAL | LENGTH | 1252 |
| SINGLE_WHEEL_BEARING_LOAD | The estimated load bearing capacity of a <TERRAIN_TRANSPORTATION_ROUTE> for a single wheel of a <VEHICLE>. | REAL | MASS | 1253 |
| SIPLE_PASSEL_WIND_CHILL_INDEX | A means of quantifying the threat of rapid cooling during breezy or windy conditions that may result in hypothermia, expressed as an equivalent temperature in degrees Celsius given by the formula 0,0817 · [(5,5488 · V0,5) + 5,81 + (0,5592 · V)] · [T - 33,0] + 33,0 where V is the <<WIND_SPEED>> in metres per second at a <<HEIGHT_AGL>> of 10 metres (approximately 33 feet) and T is the <<AIR_TEMPERATURE>> in degrees Celsius; the Siple-Passel Wind Chill Index. | REAL | THERMO_TEMPERATURE | 1254 |
| SKY_GROUND_LUMINANCE_RATIO | The ratio of sky luminance to non-sky luminance; the sky ground ratio. | REAL | PURE_NUMBER | 1255 |
| SKY_OBSCURATION_FRACTION | The fraction of the sky that is covered by <FOG> or other low-altitude atmospheric phenomena, determined at a <PLANETARY_SURFACE>; the sky obscuration fraction. | REAL | PURE_NUMBER | 1256 |
| SLAVED_DECLINATION | A fixed value of magnetic variation applied within <EQUIPMENT> functioning as an <AID_TO_NAVIGATION> to the true <DIRECTION> in order to obtain the magnetic values for radials, courses and headings; a slaved declination. | REAL | PLANE_ANGLE | 1257 |
| SMOKE_RATE_FRACTION | A number between 0 and 1 inclusive representing the linearly-scaled fraction of the production rate of <SMOKE> by an <OBJECT>. Zero means no smoke at all and one means maximum production. | REAL | PURE_NUMBER | 1258 |
| SMOKESTACK_COUNT | The number of <SMOKESTACK>s associated with an <OBJECT>; the smokestack count. | COUNT | 1259 | |
| SNOW_ACCUMULATION_DEPTH | The measurement of the <<DEPTH>> of <SNOW> that has accumulated on the <TERRAIN>. | REAL | LENGTH | 1260 |
| SNOW_AGE | The time difference between the reference date and the date of the last measurable fall of <SNOW>; the snow age. | REAL | TIME | 1261 |
| SNOW_DENSITY | The density of accumulated <SNOW> on an <OBJECT>. | REAL | VOLUMIC_MASS | 1262 |
| SNOW_DEPTH_CATEGORY | A category describing the <<SNOW_ONLY_DEPTH>>. | ENUMERATION | 1263 | |
| SNOW_DEPTH_EQUIVALENT | The <<DEPTH>> of the liquid <WATER> that is equivalent in content to the <SNOW> (not <ICE>) that has accumulated on the <TERRAIN>. | REAL | LENGTH | 1264 |
| SNOW_DRIFT_HEIGHT | The maximum height of drifts of <SNOW>. | REAL | LENGTH | 1265 |
| SNOW_MELTING_RATE | The melting rate of <SNOW> on the <TERRAIN> as measured by <<SNOW_ONLY_DEPTH>>. | REAL | SPEED | 1266 |
| SNOW_ONLY_DEPTH | The depth of the <SNOW> that may be over <TERRAIN>, <TERRAIN> covered by <ICE>, or floating <ICE>. | REAL | LENGTH | 1267 |
| SOIL_COMPRESSIONAL_VELOCITY | The velocity of displacement of <SOIL> in the same <DIRECTION> as the compressional (density) wave through that <SOIL> (VP); the soil compressional velocity. | REAL | SPEED | 1268 |
| SOIL_CONE_INDEX | The force per unit basal area required to push a cone penetrometer through a specified increment of <SOIL>; typically measured at depths from 0,0 to 0,6 metres; the soil cone index. | REAL | PRESSURE | 1269 |
| SOIL_DENSITY_DRY | The average <<MATERIAL_DENSITY>> of the <SOIL>, between the <SURFACE> of the <TERRAIN> and the <BEDROCK>, after it has been dried to a constant <<MASS>> at 378,15 kelvin (105 degrees Celsius). | REAL | VOLUMIC_MASS | 1270 |
| SOIL_DEPTH | The <<DEPTH>> of <SOIL> or unconsolidated <MATERIAL> from the <SURFACE> of the <TERRAIN> to <BEDROCK>. | REAL | LENGTH | 1271 |
| SOIL_LAYER_DEPTH | The depth of the top of a layer of <SOIL> measured from the <SURFACE> of the <TERRAIN>. | REAL | LENGTH | 1272 |
| SOIL_MOISTURE_MASS_LOWER_LAYER | The <<MASS>> of <WATER> contained between <<SOIL_LAYER_DEPTH>> 5 and <<SOIL_LAYER_DEPTH>> 100 centimetres; the lower layer soil moisture mass. | REAL | MASS_FRACTION | 1273 |
| SOIL_MOISTURE_MASS_TOP_LAYER | The <<MASS>> of <WATER> contained between <<SOIL_LAYER_DEPTH>> 0 and <<SOIL_LAYER_DEPTH>> 5 centimetres below the <SURFACE> of the <TERRAIN>; the top layer soil moisture mass. | REAL | MASS_FRACTION | 1274 |
|
SOIL_SEISMIC_ABSORPTION- _COEFFICIENT |
The coefficient in an exponential model of attenuation of seismic waves by <SOIL>; the soil seismic absorption coefficient. If A and A0 are resultant and initial amplitudes, respectively, at a given <<FREQUENCY>>, x the distance travelled and a the soil seismic absorption coefficient, they are related by the equation A = A0 · exp(-ax). | REAL | PURE_NUMBER | 1275 |
| SOIL_SHEAR_VELOCITY | The velocity of displacement of <SOIL> in the <DIRECTION> perpendicular to the compressional (density) wave through that <SOIL> (VS); the soil shear velocity. | REAL | SPEED | 1276 |
| SOIL_SURFACE_ALBEDO | The electromagnetic radiation incident on the <TERRAIN> that is reflected back in all directions, expressed as fraction of total incident electromagnetic radiation; soil surface albedo. | REAL | PURE_NUMBER | 1277 |
| SOIL_SURFACE_TEMPERATURE | The temperature of the <SOIL> at the <SURFACE> (within a few optical depths) of the <TERRAIN>. | REAL | THERMO_TEMPERATURE | 1278 |
| SOIL_TYPE | The USCS type of the <SOIL>. | ENUMERATION | 1279 | |
| SOIL_WATER_MASS | The <WATER> lost from the <SOIL> upon drying to constant <<MASS>> at 378,15 kelvin (105 degrees Celsius). The value is expressed as the fractional <<MASS>> of <WATER> per unit <<MASS>> of wet <SOIL>; the soil water mass. | REAL | MASS_FRACTION | 1280 |
| SOIL_WATER_VOLUME | The <WATER> lost from the <SOIL> upon drying to constant <<MASS>> at 378,15 kelvin (105 degrees Celsius). The value is expressed as the fractional <<VOLUME>> of <WATER> per unit bulk <<VOLUME>> of wet <SOIL>; the soil water volume. | REAL | VOLUME_FRACTION | 1281 |
| SOIL_WETNESS_CATEGORY | A category describing the content of liquid and solid <WATER> in the <SOIL> of a <TERRAIN_SURFACE_REGION>; the soil wetness category. | ENUMERATION | 1282 | |
| SOLAR_DIFFUSE_IRRADIANCE | The diffuse solar incident flux per unit <<AREA>> of the <SURFACE> of an <OBJECT>; the solar diffuse irradiance. | REAL | IRRADIANCE | 1283 |
| SOLAR_DIRECT_IRRADIANCE | The direct solar incident flux per unit <<AREA>> of the <SURFACE> of an <OBJECT>; the solar direct irradiance. | REAL | IRRADIANCE | 1284 |
|
SOLAR_RADIANCE_AZIMUTH- _GEODETIC |
The solar <<INCIDENCE_AZIMUTH_GEODETIC>>. | REAL | PLANE_ANGLE | 1285 |
| SOLAR_RADIANCE_AZIMUTH_LOCAL | The solar <<INCIDENCE_AZIMUTH_LOCAL>>. | REAL | PLANE_ANGLE | 1286 |
|
SOLAR_RADIANCE_AZIMUTH- _MAGNETIC |
The solar <<INCIDENCE_AZIMUTH_MAGNETIC>>. | REAL | PLANE_ANGLE | 1287 |
|
SOLAR_RADIANCE_ELEV_ANGLE- _HORIZONTAL |
The solar <<INCIDENCE_ELEV_ANGLE_HORIZONTAL>>. | REAL | PLANE_ANGLE | 1288 |
|
SOLAR_RADIANCE_ELEV_ANGLE- _LOCAL |
The solar <<INCIDENCE_ELEV_ANGLE_LOCAL>>. | REAL | PLANE_ANGLE | 1289 |
| SOLAR_RADIATION_CUMULATIVE | The rate of solar radiation received over a twenty-four hour <<TIME_QUANTITY>>; the solar radiation cumulative. | REAL | IRRADIANCE | 1290 |
| SONIC_LAYER_DEPTH | The depth of the layer near a <WATER_BODY_SURFACE> into which sound rays are trapped by upward refraction effects; the sonic layer depth. | REAL | LENGTH | 1291 |
| SOUND_SIGNAL_TYPE | The means used to generate an audible marine signal; the sound signal type. | ENUMERATION | 1292 | |
| SOUNDING_DATUM | The vertical, typically tidal, <SURFACE_DATUM> to which <SOUNDING>s and <<HYDROGRAPHIC_DRYING_HEIGHT>>s are referenced; usually taken to correspond to a low water stage of the <TIDE>; the sounding datum. | ENUMERATION | 1293 | |
| SOUNDING_EXPOSITION | The type of exposition of a <<DEPTH_OF_WATER_BODY_FLOOR>> measured by sounding with respect to the surrounding <REGION>. | ENUMERATION | 1294 | |
| SOUNDING_INFORMATION | Additional information about a <<DEPTH_OF_WATER_BODY_FLOOR>> measured by sounding. | ENUMERATION | 1295 | |
| SOUNDING_MEASUREMENT_TECHNIQUE | The type of sounding technique and/or method of measurement of a <<DEPTH_OF_WATER_BODY_FLOOR>>. | ENUMERATION | 1296 | |
|
SOUNDING_VELOCITY_CORRECTION- _TYPE |
The type of correction that has been added to or subtracted from a sounding velocity instrument reading to obtain the correct <<DEPTH_OF_WATER_BODY_FLOOR>>. | ENUMERATION | 1297 | |
| SOURCE | The source from which the identification of an <OBJECT> was captured or upgraded. | ENUMERATION | 1298 | |
| SOURCE_DATA_SET_COMPILE_DATE | The date a source data set (for example: a <MAP>) was originally compiled. The date is formatted as specified by <<DATE_FORMAT>> or by <<DATE_TIME_FORMAT>>. | CONSTRAINED_STRING | 1299 | |
| SOURCE_DATA_SET_EDITION | The edition of a source data set. Example source data set: a <MAP>. | STRING | 1300 | |
|
SOURCE_DATA_SET_GENERAL- _INFORMATION |
General information about, and description of conditions within, a source data set. Example source data set: a <MAP>. | STRING | 1301 | |
| SOURCE_DATA_SET_NAME | The name or identification number of the first source data <SET>. Example source data set: a <MAP>. | STRING | 1302 | |
| SOURCE_DATA_SET_PRINT_DATE | The date a source data set (for example: a <MAP>) was last printed. The date is formatted as specified by <<DATE_FORMAT>> or by <<DATE_TIME_FORMAT>>. | CONSTRAINED_STRING | 1303 | |
| SOURCE_DATA_SET_REVISION_DATE | The date a source data set (for example: a <MAP>) was last revised. The date is formatted as specified by <<DATE_FORMAT>> or by <<DATE_TIME_FORMAT>>. | CONSTRAINED_STRING | 1304 | |
| SPATIAL_ALIGNMENT | The type of spatial alignment of an <OBJECT>. | ENUMERATION | 1305 | |
|
SPATIAL_ANGULAR_PRIMARY- _COORDINATE |
The angular primary axis coordinate value for a defined spatial reference frame. | REAL | PLANE_ANGLE | 1306 |
|
SPATIAL_ANGULAR_SECONDARY- _COORDINATE |
The angular secondary axis coordinate value for a defined spatial reference frame. | REAL | PLANE_ANGLE | 1307 |
|
SPATIAL_LINEAR_PRIMARY- _COORDINATE |
The linear primary axis coordinate value for a defined spatial reference frame. | REAL | LENGTH | 1308 |
|
SPATIAL_LINEAR_SECONDARY- _COORDINATE |
The linear secondary axis coordinate value for a defined spatial reference frame. | REAL | LENGTH | 1309 |
|
SPATIAL_LINEAR_TERTIARY- _COORDINATE |
The linear tertiary axis coordinate value for a defined spatial reference frame. | REAL | LENGTH | 1310 |
| SPECIFIC_GRAVITY | The ratio of the <<MASS>> of a <<VOLUME>> of <WATER> to the <<MASS>> of an equal <<VOLUME>> of distilled <WATER> at 277,15 kelvin (4 degrees Celsius); the specific gravity. | REAL | MASS_FRACTION | 1311 |
| SPECIFIC_HEAT | The quantity of energy required to raise the temperature of a unit <<MASS>> of a <MATERIAL> by one kelvin; the specific heat. | REAL | SPECIFIC_HEAT_CAPACITY | 1312 |
| SPECIFIC_HUMIDITY | The ratio of the <<MASS>> of water vapour to the total <<MASS>> of a <<VOLUME>> of moist <AIR>; the specific humidity. | REAL | MASS_FRACTION | 1313 |
| SPERM_WHALE_CATCH_PER_YEAR | The number of Sperm <WHALE>s caught within a specified one-year period. | COUNT | 1314 | |
| SPILLING_BREAKER_FRACTION | A number between 0 and 1 inclusive representing the linearly-scaled fraction of breaking <WATER_WAVE>s that are spilling. Spilling is a breaking process wherein the <WATER_WAVE> peaks up until it is very steep but not vertical; only the top most portion of the <WATER_WAVE> curls over and descends on the forward slope of the advancing <WATER_WAVE> where it then slides down into the trough. This process starts at scattered foci which coalesce until the <WATER_WAVE> becomes an advancing <LINE> of foam. | REAL | PURE_NUMBER | 1315 |
| SPORT_TYPE | The type of sport or exercise performed on an <ATHLETIC_FIELD> or <SPORTS_ARENA>. | ENUMERATION | 1316 | |
| SPOT_ELEVATION_TYPE | The type of a <<TERRAIN_ELEVATION>> measurement at a <LOCATION>; the spot elevation type. | ENUMERATION | 1317 | |
| SPRING_TYPE | The type of a <SPRING>. | ENUMERATION | 1318 | |
| STAIR_CONSTRUCTION_TYPE | The type of <MATERIAL> and/or techniques used to construct a <STAIR>. | ENUMERATION | 1319 | |
| STAIR_STYLE | The architectural style of a <STAIR>. | ENUMERATION | 1320 | |
| STANTON_NUMBER | A scalar governing the aerodynamic heat transfer coefficient of an <OBJECT>; the Stanton number. | REAL | PURE_NUMBER | 1321 |
| STELLAR_ALPHA_FLUX | The stellar flux of alpha <PARTICLE>s. | REAL | PARTICLE_FLUX_DENSITY | 1322 |
| STELLAR_ELECTRON_FLUX | The stellar flux of electrons. | REAL | PARTICLE_FLUX_DENSITY | 1323 |
| STELLAR_EM_FLUX | The stellar electromagnetic flux level. | REAL | FLUX_DENSITY | 1324 |
| STELLAR_PROTON_FLUX | The stellar flux of protons. | REAL | PARTICLE_FLUX_DENSITY | 1325 |
| STELLAR_RF_FLUX_10r7 | The intensity of <STELLAR_FLUX_RADIO_FREQUENCY_EMISSION> at 10,7 centimetre <<WAVELENGTH>> (2,8 gigahertz). | REAL | FLUX_DENSITY | 1326 |
| STELLAR_RF_NB_MAXIMUM_TIME | The time of the maximum electromagnetic flux of a <STELLAR_BURST_RADIO_FREQUENCY_EMISSION> noise event relative to the beginning of the day (midnight). | REAL | TIME | 1327 |
|
STELLAR_RF_NB_MAXIMUM_TIME- _QUALITY |
The quality of a <<STELLAR_RF_NB_MAXIMUM_TIME>> measurement. | ENUMERATION | 1328 | |
| STELLAR_RF_NB_MEAN_FLUX | The mean electromagnetic flux of a <STELLAR_BURST_RADIO_FREQUENCY_EMISSION> noise event. | REAL | FLUX_DENSITY | 1329 |
|
STELLAR_RF_NB_MEAN_FLUX- _QUALITY |
The quality of a <<STELLAR_RF_NB_MEAN_FLUX>> measurement. | ENUMERATION | 1330 | |
| STELLAR_RF_NB_PEAK_FLUX | The peak electromagnetic flux of a <STELLAR_BURST_RADIO_FREQUENCY_EMISSION> noise event. | REAL | FLUX_DENSITY | 1331 |
|
STELLAR_RF_NB_PEAK_FLUX- _QUALITY |
The quality of a <<STELLAR_RF_NB_PEAK_FLUX>> measurement. | ENUMERATION | 1332 | |
| STELLAR_RF_NB_PERIOD | The <<TIME_QUANTITY>> of a <STELLAR_BURST_RADIO_FREQUENCY_EMISSION> noise event. | REAL | TIME | 1333 |
| STELLAR_RF_NB_PERIOD_QUALITY | The quality of a <<STELLAR_RF_NB_PERIOD>> measurement. | ENUMERATION | 1334 | |
| STELLAR_RF_NB_REMARKS | A descriptive or explanatory comment (remarks) regarding a <STELLAR_BURST_RADIO_FREQUENCY_EMISSION> noise event. | STRING | 1335 | |
| STELLAR_RF_NB_START | The starting time of a <STELLAR_BURST_RADIO_FREQUENCY_EMISSION> noise event relative to the beginning of the day (midnight). | REAL | TIME | 1336 |
| STELLAR_RF_NB_START_QUALITY | The quality of a <<STELLAR_RF_NB_START>> measurement. | ENUMERATION | 1337 | |
| STELLAR_WIND_ION_TEMPERATURE | The temperature of ionized <PARTICLE>s in a <STELLAR_WIND>. | REAL | THERMO_TEMPERATURE | 1338 |
| STELLAR_WIND_PROTON_DENSITY | The density of protons in a <STELLAR_WIND>. | REAL | VOLUMETRIC_ENTITY_DENSITY | 1339 |
| STELLAR_WIND_SPEED | The speed of a <STELLAR_WIND>. | REAL | SPEED | 1340 |
| STELLAR_WIND_SPEED_GSE_X | The <<STELLAR_WIND_SPEED>> in the <DIRECTION> of the <SUN> (in the ecliptic plane) and positive towards the <SUN>; the stellar wind speed GSE X. | REAL | SPEED | 1341 |
| STELLAR_WIND_SPEED_GSE_Y | The <<STELLAR_WIND_SPEED>> in the ecliptic plane in a <DIRECTION> perpendicular to the <DIRECTION> of the <SUN>, pointing generally opposite to the <DIRECTION> of revolution of the <EARTH> about the <SUN>, and positive in the contra-revolution <DIRECTION>; the stellar wind speed GSE Y. | REAL | SPEED | 1342 |
| STELLAR_WIND_SPEED_GSE_Z | The <<STELLAR_WIND_SPEED>> perpendicular to the ecliptic plane and positive towards the <STAR> Polaris; the stellar wind speed GSE Z.. | REAL | SPEED | 1343 |
| STELLAR_X_RAY_FLUX_L_BAND | The intensity (flux) of stellar x-rays in the L-band (0,1 - 0,8 nanometres <<WAVELENGTH>>). | REAL | RADIANT_EXITANCE_RATE | 1344 |
| STELLAR_X_RAY_FLUX_S_BAND | The intensity (flux) of stellar x-rays in the S-band (0,05 - 0,4 nanometres <<WAVELENGTH>>). | REAL | RADIANT_EXITANCE_RATE | 1345 |
| STEM_DIAMETER | The diameter of the stem/trunk of a <PLANT> measured at a <<HEIGHT_AGL>> of 1,4 metres. | REAL | LENGTH | 1346 |
| STORAGE_FACILITY_TYPE | The type of storage <FACILITY>s available at or in the near vicinity of an <OBJECT>. | ENUMERATION | 1347 | |
| STRUCTURAL_PILE_TYPE | The type of a <STRUCTURAL_PILE>. | ENUMERATION | 1348 | |
| STRUCTURE_DENSITY | The areal density of <STRUCTURE>s. | REAL | AREAL_ENTITY_DENSITY | 1349 |
| STRUCTURE_PROTECTION_TYPE | The type/degree to which a <STRUCTURE> provides protection to itself or its contents by resisting the effects of an explosion, a <MUNITION>, and a natural disaster (for example: a hurricane, a tornado, or an earthquake). | ENUMERATION | 1350 | |
| STRUCTURE_SHAPE | The geometric form or configuration of an <OBJECT>; the structure shape. | ENUMERATION | 1351 | |
| SUMMER_CANOPY_COVER_FRACTION | A number between 0 and 1 inclusive representing linearly-scaled fractional canopy cover of <TREE>s, during the summer. Zero means no cover and one means completely covered. | REAL | PURE_NUMBER | 1352 |
| SUNRISE_TIME | The time of sunrise as specified by <<TIME_FORMAT>>. The time of sunrise is defined to occur when the geometric zenith distance of the centre of the <SUN> is 90,8333 arc degrees; that is, the centre of the <SUN> is geometrically 50 arc minutes below a horizontal plane for an observer at MSL with a level, unobstructed eastern horizon under average atmospheric conditions. The upper limb of the <SUN> will then appear to be tangent to the eastern horizon. The 50 arc minute geometric depression of the centre of the <SUN> used for the computations is obtained by adding the average apparent <<RADIUS>> of the <SUN> (16 arc minutes) to the average amount of atmospheric refraction at the horizon (34 arc minutes). | CONSTRAINED_STRING | 1353 | |
| SUNSET_TIME | The time of sunset as specified by <<TIME_FORMAT>>. Thetime of sunset is defined to occur when the geometric zenith distance of the centre of the <SUN> is 90,8333 arc degrees; that is, the centre of the <SUN> is geometrically 50 arc minutes below a horizontal plane for an observer at MSL with a level, unobstructed western horizon under average atmospheric conditions. The upper limb of the <SUN> will then appear to be tangent to the western horizon. The 50 arc minute geometric depression of the centre of the <SUN> used for the computations is obtained by adding the average apparent <<RADIUS>> of the <SUN> (16 arc minutes) to the average amount of atmospheric refraction at the horizon (34 arc minutes). | CONSTRAINED_STRING | 1354 | |
| SUNSHINE_OBSERVATION_PERIOD | The <<TIME_QUANTITY>> over which a solar irradiation observation was taken; the sunshine observation period. | REAL | TIME | 1355 |
| SUNSHINE_PERIOD | The <<TIME_QUANTITY>> that solar irradiation occurred; the sunshine period. | REAL | TIME | 1356 |
| SUNSPOT_NUMBER | The number of <SUNSPOT>s observed; the sunspot number (SSN). | REAL | PURE_NUMBER | 1357 |
| SUNSPOT_NUMBER_INDEX | The total number of <SUNSPOT>s plus ten times the number of <SUNSPOT> groups in a given <<TIME_QUANTITY>>(usually one month); the sunspot number index. | REAL | PURE_NUMBER | 1358 |
| SUPERELEVATION | The lateral slope (rise/run) of a <TERRAIN_TRANSPORTATION_ROUTE>; the superelevation. | REAL | LENGTH | 1359 |
| SUPERTANKER_DENSITY | The areal density of supertanker <WATER_SURFACE_VESSEL>s. A supertanker <WATER_SURFACE_VESSEL> is characterized by a dead weight greater than 318 000 kilograms (approximately 350 000 tons)and a <<LENGTH>> greater than 325 metres). | REAL | AREAL_ENTITY_DENSITY | 1360 |
| SURFACE_ANGLE | The maximum angle between the <SURFACE> of an <OBJECT> and a perpendicular to the local gravity vector. The value is selected to be between 0 and 90 arc degrees (or equivalent). | REAL | PLANE_ANGLE | 1361 |
| SURFACE_BACKSCATTER | The negative of the ratio of the flux returned (reflected directly back in the <DIRECTION> of incidence) to the incident flux in decibels of the <SURFACE> of an <OBJECT>; the surface backscatter. | REAL | FIELD_OR_POWER_LEVEL_DIFF | 1362 |
| SURFACE_CATEGORY | The category of the <SURFACE> of an <OBJECT>. | ENUMERATION | 1363 | |
| SURFACE_CHARACTERISTIC_TYPE | The principal characteristic type of a <SURFACE>. | ENUMERATION | 1364 | |
| SURFACE_EM_ABSORPTIVITY | The ratio of absorbed to incident electromagnetic flux at a <SURFACE>; the surface electromagnetic absorptivity. | REAL | FIELD_OR_POWER_LEVEL_DIFF | 1365 |
| SURFACE_EM_ABSORPTIVITY_SOLAR | The <<SURFACE_EM_ABSORPTIVITY>> of all appreciable solar flux (from about 0,0 to 3,0 micrometres in <<WAVELENGTH>>); if expressed in decibels, the negative of the value is used; the surface solar electromagnetic absorptivity. | REAL | FIELD_OR_POWER_LEVEL_DIFF | 1366 |
| SURFACE_EM_DUCT_HEIGHT | The <<HEIGHT_AGL>> of the top of a <SURFACE_BASED_EM_DUCT>. | REAL | LENGTH | 1367 |
| SURFACE_EM_DUCT_STRENGTH | The strength of a <SURFACE_BASED_EM_DUCT>. | ENUMERATION | 1368 | |
| SURFACE_MATERIAL_TYPE | The composition of the <MATERIAL> of the <SURFACE> of an <OBJECT> excluding internal structural <MATERIAL>s. | ENUMERATION | 1369 | |
| SURFACE_REFLECTIVITY | A number between 0 and 1 inclusive representing the ratio of reflected to the incident flux at a <SURFACE>; the surface reflectivity. Zero means no reflection and one means total reflection. | REAL | PURE_NUMBER | 1370 |
|
SURFACE_ROUGHNESS- _DESCRIPTION_IDENTIFIER |
The numeric identifier the roughness description of a <SURFACE>. | INDEX | 1371 | |
| SURFACE_SLIPPERY | An indication that a <SURFACE> (for example: wet grass or wet clay <SOIL>) is slippery. | BOOLEAN | 1372 | |
| SURFACE_SLOPE | The maximum slope (rise/run) of the <SURFACE> of an <OBJECT>. | REAL | PURE_NUMBER | 1373 |
| SURFACE_SLOPE_ORIENTATION | The <<GEODETIC_AZIMUTH>> of the <DIRECTION> of maximum <<SURFACE_SLOPE>>. | REAL | PLANE_ANGLE | 1374 |
| SURFACE_TEMPERATURE | The temperature of a <SURFACE>. | REAL | THERMO_TEMPERATURE | 1375 |
| SURFACE_THERMAL_INDEX | The index used to describe the thermal (radiance) characteristic of a <SURFACE>. This value is used to index one or more thermal (radiance) model-specific lookup tables in order to predict, display, or analyze thermal signatures. The exact interpretation of this value is determined by the thermal model being used. | INDEX | 1376 | |
| SURFACE_THERMAL_MODEL | The type of thermal (radiance) model being used to determine the interpretation of the thermal index describing the thermal (radiance) characteristic of a <SURFACE>. That value is used to index one or more thermal model-specific lookup tables in order to predict, display, or analyze thermal signatures. | ENUMERATION | 1377 | |
|
SURFACE_THERMAL_SUNSHADING- _DOMINANCE |
The degree of dominance of the effect of shading from the <SUN> (in the respective sensor domain) over the thermally derived values. The values are between 0 and 1 inclusive with with 0 being minimal and 1 being maximally (but not necessarily completely) dominant. The exact interpretation of this value is determined by the thermal model being used. | REAL | PURE_NUMBER | 1378 |
|
SURFACE_THERMAL_VISUAL- _DOMINANCE |
The degree of dominance of the visual texture of an image (in the respective sensor domain) over the thermally derived values. The values are between 0 and 1 inclusive with with 0 being minimal and 1 being maximally (but not necessarily completely) dominant. The exact interpretation of this value is determined by the thermal model being used. | REAL | PURE_NUMBER | 1379 |
| SURFACE_WIND_SPEED | The <<WIND_SPEED>> 10 metres above a <PLANETARY_SURFACE>. | REAL | SPEED | 1380 |
| SURFICIAL_DEPTH | The estimated general depth of <SOIL> or unconsolidated surficial <MATERIAL>s on the <TERRAIN>. | REAL | LENGTH | 1381 |
| SURGING_BREAKER_FRACTION | A number between 0 and 1 inclusive representing the linearly-scaled fraction of breaking <WATER_WAVE>s that are surging. Surging means that the <WATER_WAVE> crest tends to advance faster than the base of the <WATER_WAVE> to suggest the formation of a plunging breaker, however, the <WATER_WAVE> base then advances faster than the crest, the plunging is arrested, and the breaker surges up the <BEACH> as a wall of <WATER> which may, or may not, be white water. Zero means no breaking <WATER_WAVE>s are surging and one means all are surging. | REAL | PURE_NUMBER | 1382 |
|
SURVEILLANCE_WINGED_AIRCRAFT- _TYPE |
The type of a winged surveillance <AIRCRAFT>. | ENUMERATION | 1383 | |
| SURVEY_ADEQUATE | An indication that an <OBJECT> was adequately surveyed. | BOOLEAN | 1384 | |
| SURVEY_CONTROL_POINT_TYPE | The type of a control point established by surveying methods. | ENUMERATION | 1385 | |
| SURVEY_END_DATE | The end date of a survey. The value is formatted as specified by <<DATE_FORMAT>> or by <<DATE_TIME_FORMAT>>. | CONSTRAINED_STRING | 1386 | |
| SURVEY_START_DATE | The start date of a survey. The value is formatted as specified by <<DATE_FORMAT>> or by <<DATE_TIME_FORMAT>>. | CONSTRAINED_STRING | 1387 | |
| SUSPENDED_CEILING_DEPTH | The <<DEPTH>> of a <ROOM_CEILING> suspended from the <SURFACE> above; the suspended ceiling depth. | REAL | LENGTH | 1388 |
| SYSTEM_RELAXATION_TIME | The <<TIME_QUANTITY>> required for a <SYSTEM> exposed to some discontinuous change in environment to return to the state it would exhibit after an indefinitely long time; the system relaxation time. | REAL | TIME | 1389 |
http://www.iso.ch/iso/en/ittf/PubliclyAvailableStandards/ISO_IEC_18025_Ed1.html