Pre SWOT Hydrology GRRATS Daily River Heights and Storage Version 2

Pre SWOT Hydrology GRRATS Daily River Heights and Storage Version 2
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DOI10.5067/PSGRA-DA2V2
Short NamePRESWOT_HYDRO_GRRATS_L2_DAILY_VIRTUAL_STATION_HEIGHTS_V2
DescriptionThe Global River Radar Altimeter Time Series (GRRATS) 1km/daily interpolations are river heights from ERS-1, ERS-2, TOPEX/Poseidon OSTM/Jason-2 and Envisat that are interpolated and processed to create a continuous heights for the study over the temporal range of the altimeters used. The purpose of these heights are to provide satellite altimetric river height data in a form that is more recognizable to the observational community and as a way to get users use to using satellite data for river hydrology.
Version2
Dataset TypeOPEN
MeasurementTERRESTRIAL HYDROSPHERE > SURFACE WATER > SURFACE WATER FEATURES > RIVERS/STREAMS
Processing Level2
CoverageRegion: Global
Northernmost Latitude: 90 degrees
Southernmost Latitude: -90 degrees
Westernmost Longitude: -180 degrees
Easternmost Longitude: 180 degrees
Time Span: 2002-Jul-13 to 2017-Sep-30
ResolutionSpatial Resolution: 0 km (Along) x 0 km (Across)
ProjectionType:
Detail:
Ellipsoid:
Latency hours
Swath Width5 km
Sample Frequency-
Temporal Repeat (Nominal)1 Day
Temporal Repeat (Min)-
Temporal Repeat (Max)-
Platform/Sensor
ENVISAT
Platform
Name: Environmental Satellite (ENVISAT)
Orbit Period: 100.59 minutes
Inclination Angle: 98.55 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
RA-2
SENSOR
Name: Radar Altimeter 2 (RA-2)
Swath Width: 5 km
Description: Nadir pointing radar altimeter measuring at 13.575 GHz (Ku band) and 3.2 GHz (S band)

JASON-1
Platform
Name: JASON-1 (JASON-1)
Orbit Period: 112.43 minutes
Inclination Angle: 66.04 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
POSEIDON-2
SENSOR
Name: JASON-1 RADAR ALTIMETER (POSEIDON-2)
Swath Width: - km
Description: The Poseidon-2 altimeter, operating at 13.575 GHz (Ku band) and 5.3 GHz (C band), is the primary sensor for the JASON-1 mission. The measurements made at the two frequencies are combined to obtain measurements of the altimeter range, wind speed, significant wave height, and the ionospheric correction. The Poseidon-2 package consists of dual redundant altimeter units each of which has low mass and low power consumption.

TOPEX/POSEIDON
Platform
Name: Topography Experiment/Poseidon (TOPEX/POSEIDON)
Orbit Period: 112.43 minutes
Inclination Angle: 66.04 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
ALT (TOPEX)
SENSOR
Name: TOPEX ALTIMETER (ALT (TOPEX))
Swath Width: 5 km
Description: A satellite altimeter consists of a transmitter that sends out very sharp pulses, a sensitive receiver to record the pulse after it is reflected from the sea surface, and an accurate clock to note the time interval between transmission and reception. Examples of satellite altimeters used in the remote sensing of ocean surface height, wave height and wind speed are Seasat, Geosat and Topex/Poseidon.

ERS-2
Platform
Name: European Remote Sensing Satellite-2 (ERS-2)
Orbit Period: 100.3 minutes
Inclination Angle: 98.5 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
ERS-2 Altimeter
SENSOR
Name: European Remote Sensing 2 altimeter (ERS-2 Altimeter)
Swath Width: - km
Description: Radar Altimeter (RA) provides accurate measurements of sea surface elevation, significant wave heights, various ice parameters and an estimate of sea surface wind speed.

OSTM/JASON-2
Platform
Name: Ocean Surface Topography Mission/Jason-2 (OSTM/JASON-2)
Orbit Period: 112.43 minutes
Inclination Angle: 66.04 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
POSEIDON-3
SENSOR
Name: OSTM/Jason-2 RADAR alitmieter (POSEIDON-3)
Swath Width: 5.1 km
Description: The Poseidon-3 altimeter, operating at 13.575 GHz (Ku band) and 5.3 GHz (C band), is the primary sensor for the OSTM mission. The measurements made at the two frequencies are combined to obtain measurements of the altimeter range, wind speed, significant wave height, and the ionoshperic correction. The Poseidon-3 package consists of dual redundant altimeter units each of which has low mass and low power consumption.

JASON-3
Platform
Name: Jason-3 (JASON-3)
Orbit Period: 112 minutes
Inclination Angle: 66.05 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
POSEIDON-3B
SENSOR
Name: POSEIDON-3B (POSEIDON-3B)
Swath Width: 5.1 km
Description: POSEIDON-3B

ProjectMaking Earth Science Data Records for Use in Research Environments (MEaSUREs)
Data ProviderCreator: Coss, Stephen; Durand, Michael; Lettenmaier, Dennis; Yi, Yuchan; Jia, Yuanyuan; Guo, Qi, Tuozzolo, Stephen; Shun, C.K.; Allen, George H.; Calmant, Stephane; Pavelsky, Tamlin
Release Place: -
Release Date: 2019-Aug-30
Resource: -
Keyword(s)lake, reservoir, area, hydrology
Persistent IDPODAAC-PSGRA-DA2V2
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Citation Coss, Stephen; Durand, Michael; Lettenmaier, Dennis; Yi, Yuchan; Jia, Yuanyuan; Guo, Qi, Tuozzolo, Stephen; Shun, C.K.; Allen, George H.; Calmant, Stephane; Pavelsky, Tamlin. 2019. Pre SWOT Hydrology GRRATS Daily River Heights and Storage Version 2. Ver. 2. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/PSGRA-DA2V2.

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