N: 66.15 S: -66.15 E: 180 W: -180
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Variables
The table below lists the variables contained within a single granule for this dataset. Variables often contain observed or derived geophysical measurements collected from a variety of sources, including remote sensing instruments on satellite and airborne platforms, field campaigns, in situ measurements, and model outputs. The terms variable, parameter, scientific data set, layer, and band have been used across NASA’s Earth science disciplines; however, variable is the designated nomenclature in NASA’s Common Metadata Repository (CMR). Variable metadata attributes such as Name, Description, Units, Data Type, Fill Value, Valid Range, and Scale Factor allow users to efficiently process and analyze the data. The full range of attributes may not be applicable to all variables. Additional information on variable attributes is typically available in the data, user guide, and/or other product documentation.
For questions on a specific variable, please use the Earthdata Forum.
| Name Sort descending | Description | Units | Data Type | Fill Value | Valid Range | Scale Factor | Offset |
|---|---|---|---|---|---|---|---|
| /data_01/rad_water_vapor_qual | Quality flag for the radiometer water vapor content | N/A | byte | 127 | N/A | 1 | N/A |
| /data_01/rad_wet_tropo_cor | Wet tropospheric correction derived from the on-board radiometer and valid over ocean surfaces only. A wet tropospheric correction must be added (negative value) to the instrument range measurement to correct it for the wet tropospheric delays of the radar pulse | m | short | 32767 | N/A | 0.0001 | N/A |
| /data_01/rad_wet_tropo_cor_qual | Quality flag for the radiometer wet troposphere correction | N/A | byte | 127 | N/A | 1 | N/A |
| /data_01/rad_wind_speed | Wind speed at 10 m height derived from radiometer measurements. | m/s | short | 32767 | N/A | 0.01 | N/A |
| /data_01/rad_wind_speed_qual | Quality flag for the radiometer wind speed | N/A | byte | 127 | N/A | 1 | N/A |
| /data_01/rain_attenuation | Difference between the expected Ku-band backscatter coefficient (based on the C-band backscatter coefficient) and the measured Ku-band backscatter coefficient | dB | short | 32767 | N/A | 0.01 | N/A |
| /data_01/rain_flag | Rain flag derived from altimeter measurements | N/A | byte | 127 | N/A | 1 | N/A |
| /data_01/solid_earth_tide | Calculated using Cartwright and Tayler tables and consisting of the second and third degree constituents. The permanent tide (zero frequency) is not included | m | short | 32767 | N/A | 0.0001 | N/A |
| /data_01/surface_classification_flag | 7-state surface type classification from MODIS and GlobCover | N/A | byte | 127 | N/A | 1 | N/A |
| /data_01/time | It contains the seconds since 1 Jan 2000 00:00:00. Time is in UTC. Time refers to the instant the L1B waveform (which is a combination of echoes for both LR and HR) touches the surface. Whenever a leap second occurs, the attribute leap_second will be set to the appropriate value | seconds since 2000-01-01 00:00:00.0 | double | N/A | N/A | 1 | N/A |
| /data_01/time_tai | Time of measurement in seconds in the TAI time scale since 1 Jan 2000 00:00:00 TAI. This time scale contains no leap seconds. The difference (in seconds) with time in UTC is given by the attribute [time:tai_utc_difference]. | seconds since 2000-01-01 00:00:00.0 | double | N/A | N/A | 1 | N/A |
| /data_01/total_electron_content | Altimeter-derived total electron content in electrons/m^2. 1 TECU = 10^16 electrons/m^2. | m^-2 | short | 32767 | N/A | 1000000000000000 | N/A |
| /data_01/wind_speed_alt | Wind speed at 10 m height derived from altimeter measurements. A calibration bias of +0.000 dB has been added to the Ku-band backscatter coefficient (sig0_ocean) before computing the wind speed. Should not be used over land. | m/s | short | 32767 | N/A | 0.01 | N/A |
| /data_01/wind_speed_alt_mle3 | Wind speed at 10 m height derived from altimeter MLE3 measurements. A calibration bias of +0.000 dB has been added to the Ku-band backscatter coefficient (sig0_ocean_mle3) before computing the wind speed. Should not be used over land. | m/s | short | 32767 | N/A | 0.01 | N/A |
| /data_01/wind_speed_mod_u | Wind U-component interpolated under the satellite track. Computed at the altimeter time-tag from the interpolation of 2 meteorological fields that surround the altimeter time-tag | m/s | short | 32767 | N/A | 0.01 | N/A |
| /data_01/wind_speed_mod_v | Wind V-component interpolated under the satellite track. Computed at the altimeter time-tag from the interpolation of 2 meteorological fields that surround the altimeter time-tag | m/s | short | 32767 | N/A | 0.01 | N/A |