Pre SWOT Hydrology Global Lake/Reservoir Surface Inland Water Area Extent V2
DOI10.5067/UCLRS-AREV2
Short NamePRESWOT_HYDRO_L3_LAKE_RESEVOIR_AREA_V2
DescriptionThe Global Lake/Reservoir Surface Inland Water Extent Mask Time Series are derived from the MODIS instruments. The purpose of this dataset is to provide surface water dynamics for several hundred lakes and reservoirs throughout the globe, with a base temporal resolution of 8 days and a spatial resolution of 500 meters. With the exception of periods of low-quality input data, these time series will extend across the lifespan of the MODIS multispectral reflectance products, from roughly 2000 to present. These time series will allow us to satisfy the project goal to produce ESDRs of suitable quality to support long-term trend analysis and global water dynamics models for the longest length possible (in most cases, about 20 years, the length of the altimetry record) of key measures of surface water storages and fluxes. This product should be accessible and of direct use to both water managers and the scientific community worldwide, and will allow for improved assessment and modeling of human impact on the global water cycle. These pre SWOT data are derived from satellites to provide hydrological measurements. The Surface Water and Ocean Topography (SWOT) mission will have hydrology as one of its objectives. This dataset does not have the same variables as SWOT, but does provide hydrological measurements with typical quality flagging typical of satellite data. Not only does it provide science information, it can also assist hydrological users new to satellite data with the satellite data formats and variables before SWOT launches.
Version2
Dataset TypeACTIVE
MeasurementLAKES > SURFACE WATER > TERRESTRIAL HYDROSPHERE
Processing Level3
CoverageNorth Bounding Coordinate: 90 degrees
South Bounding Coordinate: -90 degrees
West Bounding Coordinate: -180 degrees
East Bounding Coordinate: 180 degrees
Time Span: 2000-Feb-18 to 2016-Oct-15
Granule Time Span: 2000-Feb-18 to 2016-Oct-15
ResolutionSpatial Resolution: 0.004 degrees (Latitude) x 0.002 degrees (Longitude)
Temporal Resolution: 8 Day
Platform/Sensor
Aqua
Platform
Name: Earth Observing System, AQUA (Aqua)
Orbit Period: 98.4 minutes
Inclination Angle: 98.1 degrees
/
MODIS
SENSOR
Name: Moderate-Resolution Imaging Spectroradiometer (MODIS)
Swath Width: 2330.0 meters
Description: Spacecraft angular distance from orbital plane relative to the Equator.

Terra
Platform
Name: Earth Observing System, TERRA (Terra)
Orbit Period: 98.8 minutes
Inclination Angle: 98.2 degrees
/
MODIS
SENSOR
Name: Moderate-Resolution Imaging Spectroradiometer (MODIS)
Swath Width: 2330.0 meters
Description: Spacecraft angular distance from orbital plane relative to the Equator.

ProjectMaking Earth Science Data Records for Use in Research Environments (MEaSUREs)
Data ProviderPublisher: NASA/JPL/SWOT
Creator: Khandelwal, Anjush; Kumar, Vipin
Release Place: NASA/JPL/PODAAC
Release Date: 2019-Nov-15
Keyword(s)lake, reservoir, area, hydrology, pre-swot, inland, water, water height, ucla, swot
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Citation Khandelwal, Anjush; Kumar, Vipin. 2019. PRESWOT_HYDRO_L3_LAKE_RESEVOIR_AREA_V2. Ver. 2. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/UCLRS-AREV2

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