Recordmaps by Mission

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)

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