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Instrument details
Acronym
ERBR
Full name
Earth Radiation Budget Radiometer
Purpose
Earth radiation budget
Short description
Two channels, total spectum and shortwave component [see detailed characteristics below]
Background
New development
Scanning Technique
Mechanical, 3-axis stabilised satellite, E-W continuous, S-N stepping
Resolution
50 km
Coverage / Cycle
5 min
Mass
Power
Data Rate
Providing Agency
Roscosmos
Instrument Maturity
Flown on operational programme
Utilization Period:
≥2025-02 to ≥2035
Last update:
2021-06-14
Detailed characteristics
Channel Spectral interval Noise Equivalent Radiance Absolute accuracy SNR
Short-wave
0.32 - 4.0 µm
...... W m-2 sr-1
...... W m-2 sr-1
,,,,,,,
Total radiance
0.32 - 30 µm
…… W m-2 sr-1
...... W m-2 sr-1
.......
Satellites this instrument is flying on
Note: a red tag indicates satellites no longer operational, a
green tag indicates operational satellites, a blue tag indicates
future satellites
Instrument classification
Earth observation instrument Passive optical radiometer or spectrometer Broadband Earth radiation radiometer
WIGOS Subcomponents
Subcomponent 1 Broadband radiometer (for ERB)
Mission objectives
Primary mission objectives Upward long-wave irradiance at TOA Upward short-wave irradiance at TOA Show all Show fewer
Tentative Evaluation of Measurements
The following list indicates which measurements can typically be
retrieved from this category of instrument. To see a full Gap Analysis by Variable,
click on the respective variable.
Note: table can be sorted by clicking on the column headers
Variable Relevance for measuring this variable Operational limitations Explanation
Upward short-wave irradiance at TOA 2 - very high Information on BRDF needed. SW and Total (SW+LW) broadband channels. Frequent sampling (GEO) enable capturing diurnal variations, particularly due to clouds. Also, changing solar incidence angle helps with irradiance computation
Upward long-wave irradiance at TOA 2 - very high No specific limitation. LW radiance achieved by difference between Total and SW. Frequent sampling (GEO) enable capturing diurnal variations due to clouds.and water vapour rapid evolution
Instrument: ERBR