| Mission | Envisat |
| MVA-Name | envisat_v3 |
| Source | SGDR v3.0 |
| Frequency | 1 |
ebias.00
| Pos | Size | Scaling | Unit | Name | Version Specific Description |
|---|---|---|---|---|---|
| 1 | 2 | -3 | m | emb | Sea State Bias |
instr.00
| Pos | Size | Scaling | Unit | Name | Version Specific Description |
|---|---|---|---|---|---|
| 1 | +4 | - | sec | isec | Integer Seconds Elapsed Since Epoch
Source: SGDR v3.0 Original-Parameter: time_01 |
| 2 | +4 | -6 | sec | msec | Microseconds, Fractional Part of isec
Source: SGDR 3.0 Original-Parameter: time_01 |
| 3 | +4 | -3 | m | ralt | Altimeter Range
Source: SGDR v3.0 Original-Parameter: range_ocean_01_ku |
| 4 | +2 | -3 | m | stdalt | RMS of Altimeter Range
Source: SGDR v3.0 Original-Parameter: range_ocean_rms_01_ku |
| 5 | 2 | -2 | m | swh | Significant Wave Height
Source: SGDR v3.0 Original-Parameter: swh_ocean_01_ku |
| 6 | +2 | -2 | m | stdswh | RMS of Significant Wave Height
Source: SGDR v3.0 Original-Parameter: swh_ocean_rms_01_ku |
| 7 | +2 | -2 | db | sigma0 | Backscatter Coefficient
Source: SGDR v3.0 Original-Parameter: sig0_ocean_01_ku |
| 8 | +1 | -1 | m/s | windsp | Wind Speed
Source: SGDR v3.0 Original-Parameter: wind_speed_alt_01_ku |
| 9 | +1 | - | - | iflags | Instrument Status and Quality Flags
Source: SGDR v3.0 Original-Parameter: range_ocean_01_ku, range_ocean_rms_01_ku, swh_ocean_01_ku, swh_ocean_rms_01_ku Flags: 2 : swh_ocean_rms_01_ku == 0 or swh_ocean_rms_01_ku == 32767 or swh_ocean_01_ku == 0 or swh_ocean_01_ku == 32767 or stdswh/swh > 0.1 8 : range_numval_ku < 12 128 : range_ocean_01_ku == 2147483647 or range_ocean_rms_01_ku == 2147483647 |
orbit.00
| Pos | Size | Scaling | Unit | Name | Version Specific Description |
|---|---|---|---|---|---|
| 1 | +4 | -6 | deg | glon | Longitude
East longitude relative to Greenwich meridian Source: SGDR v3.0 Original-Parameter: lon_01 |
| 2 | 4 | -6 | deg | glat | Latitude
Positive latitude is North latitude, negative latitude is South latitude Source: SGDR v3.0 Original-Parameter: lat_01 |
| 3 | +4 | -3 | m | hsat | Satellite Altitude
Satellite Altitude above TOPEX Ellipsoid Source: SGDR v3.0 Original-Parameter: alt_01 |
| 4 | +1 | - | - | oflags | Orbit Status and Quality Flags
Source: SGDR v3.0 Original-Parameter: bathymetry, rad_surf_type, alt_echo_type,surface_type, orb_state_flag_rest Flags: 2 : bathymetry > -2000 | 4 : bathymetry > -200 | 8 : rad_surf_type != 0 or alt_echo_type != 0 | 16 : surface_type != 0 | 128 : hsat == 2147483647 |
slafg.31
| Pos | Size | Scaling | Unit | Name | Version Specific Description |
|---|---|---|---|---|---|
| 1 | 2 | -3 | m | sla | Sea Level Anomalies |
| 2 | +1 | - | - | gflags | Geophysical Corrections Quality Flags |
slafg.40
| Pos | Size | Scaling | Unit | Name | Version Specific Description |
|---|---|---|---|---|---|
| 1 | 2 | -3 | m | sla | Sea Level Anomalies
DTU15, EOT20, DAC, MMXO22 MVA-Parameters: - Ocean Tide Correction of EOT20 (otide.22) - Radial Orbit Error from MMXO22 (oer.22) - Mean Sea Surface Height from DTU15 (mssh.05) - Sea State Bias (emb.00) - Instrument Status and Quality Flags (iflags.00) - Undefined parameter (ionos.02) - Wet Tropospheric Correction from Vienna Mapping Function (VMF3) (wtrop.06) - Dry Tropospheric Correction from Vienna Mapping Function (VMF3) (dtrop.06) - Solid Earth Tide Correction using IERS Convention 2010 (etide.06) - Altimeter Range (ralt.00) - Internal Tide Correction (itide.01) - Pole Tide Correction (ptide.05) - Inverse Barometer Effect from DAC (AVISO) (invb.05) - Satellite Altitude above TOPEX Ellipsoid (hsat.00) - Ocean Load Tide Correction of EOT22 (ltide.22) - Orbit Status and Quality Flags (oflags.00) |
| 2 | +1 | - | - | gflags | Geophysical Corrections Quality Flags
MVA-Parameters: - Radial Orbit Error from MMXO22 (oer.22) - Sea State Bias (emb.00) - Undefined parameter (ionos.02) - Fractional Ice Concentration from NSIDC (fic.01) - Wet Tropospheric Correction from Vienna Mapping Function (VMF3) (wtrop.06) - Dry Tropospheric Correction from Vienna Mapping Function (VMF3) (dtrop.06) |
sshfg.40
| Pos | Size | Scaling | Unit | Name | Version Specific Description |
|---|---|---|---|---|---|
| 1 | 4 | -3 | m | ssh | Sea Surface Heights
consistent with SLA version 40 and DTU15 MVA-Parameters: - Mean Sea Surface Height from DTU15 (mssh.05) - DTU15, EOT20, DAC, MMXO22 (sla.40) - Land Ocean Flags from GMT (lwmask.01) |
| 2 | +1 | - | - | sflag | Geophysical Corrections Quality Flags
MVA-Parameters: - Land Ocean Flags from GMT (lwmask.01) - Geophysical Corrections Quality Flags (gflags.40) - DTU15, EOT20, DAC, MMXO22 (sla.40) |
sshfg.55
| Pos | Size | Scaling | Unit | Name | Version Specific Description |
|---|---|---|---|---|---|
| 1 | 4 | -3 | m | ssh | Sea Surface Heights
based on ALES and DTU15 MVA-Parameters: - Land Ocean Flags from GMT (lwmask.00) - Mean Sea Surface Height from DTU15 (mssh.05) - Undefined parameter (sla.55) |
| 2 | +1 | - | - | sflag | Geophysical Corrections Quality Flags
MVA-Parameters: - Undefined parameter (gflags.55) - Land Ocean Flags from GMT (lwmask.00) - Undefined parameter (sla.55) |