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Water Security (WSIM-GLDAS) Monthly Grids, v1 (1948 – 2014)

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Identification Information:

Citation:
Citation Information:
Originator: ISciences, and Center for International Earth Science Information Network - CIESIN - Columbia University
Publication Date: 20220824
Publication Time:
Title:
Water Security Indicator Model - Global Land Data Assimilation System (WSIM-GLDAS) Monthly Grids, Version 1
Edition: 1.00
Geospatial Data Presentation Form: raster, map
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Issue Identification:
Publication Information:
Publication Place: Palisades, NY
Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)
Other Citation Details:
Online Linkage: https://doi.org/10.7927/z1fn-kf73
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Description:
Abstract:
The Water Security Indicator Model - Global Land Data Assimilation System (WSIM-GLDAS) Monthly Grids, Version 1 data set identifies and characterizes surpluses and deficits of freshwater, and the parameters determining these anomalies, at monthly intervals over the period January 1948 to December 2014. The data set uses the land surface model outputs from NASA's Global Land Data Assimilation System, covering the global extent, to generate anomaly values for the following parameters at a gridded resolution of 0.25 degrees: temperature, precipitation, soil moisture, potential minus actual evapotranspiration, runoff, total blue water (flow-accumulated runoff), composite index of water surplus, and composite index of water deficits. These data are provided in terms of return periods, scientific units, and standardized (normalized) anomalies, and are computed over 1-month, 3-month, 6-month, and 12-month temporal periods of accumulation, referred to as integration periods. Anomaly values are present in terms of return periods with respect to a fitted Generalized Extreme Value (GEV) probability distribution function over a historical baseline period of January 1950 to December 2009, at a global spatial resolution of 0.25 degrees over the monthly, 3-month, 6-month, and 12-month periods of integration. Parameter values (location, scale, shape) of the fitted GEV probability distribution, which are fit separately for each calendar month, are distributed per parameter for each integration period.
Purpose:
To provide data characterizing 67 years (1948-2014) of anomalous freshwater surpluses, deficits, and the parameters determining them, across the global terrestrial surface.
Supplemental Information:
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Range of Dates/Times:
Beginning Date: 19480101
Beginning Time:
Ending Date: 20141231
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Currentness Reference:
publication date
Status:
Progress: Complete
Maintenance and Update Frequency: As needed
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -180.000000
East Bounding Coordinate: 180.000000
North Bounding Coordinate: 90.000000
South Bounding Coordinate: -90.000000
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Keywords:
Theme:
Theme Keyword Thesaurus: ISO Topic
Theme Keyword: Inland Waters
Theme:
Theme Keyword Thesaurus: SEDAC Theme
Theme Keyword: Sustainability
Theme Keyword: Water
Theme:
Theme Keyword Thesaurus: Data Granularity
Theme Keyword: Global
Theme:
Theme Keyword Thesaurus: GCMD Science Keywords, Version 8.6
Theme Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER
Theme Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GROUND WATER
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Place Keyword Thesaurus: CIESIN Location Terms, Version 3.1
Place Keyword: Global
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Access Constraints: None
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This work is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0). Users are free to use, copy, distribute, transmit, and adapt the work for commercial and non-commercial purposes, without restriction, as long as clear attribution of the source is provided.
Point of Contact:
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Contact Organization Primary:
Contact Organization: NASA Socioeconomic Data and Applications Center (SEDAC)
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Address Type: mailing and physical address
Address:
CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000
City: Palisades
State or Province: New York
Postal Code: 10964
Country: United States
Contact Voice Telephone: +1 845-365-8920
Contact TDD/TTY Telephone:
Contact Facsimile Telephone: +1 845-365-8922
Contact Electronic Mail Address: ciesin.info@ciesin.columbia.edu
Hours of Service:
Contact Instructions:
Browse Graphic:
Browse Graphic File Name: https://sedac.ciesin.columbia.edu/downloads/maps/water/water-wsim-gldas-v1/water-wsim-gldas-v1-composite-surplus-deficit-thumbnail.jpg
Browse Graphic File Description:
WSIM-GLDAS Version 1 (2013): Surplus & Deficit
Browse Graphic File Type: JPEG
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Citation Information:
Originator: Center for International Earth Science Information Network - CIESIN - Columbia University, and Isciences
Publication Date: 20220824
Publication Time:
Title:
Documentation for the Water Security (WSIM-GLDAS) Monthly Grids, v1 (1948 - 2014)
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Geospatial Data Presentation Form: documentation
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Publication Information:
Publication Place: Palisades, NY
Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)
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Online Linkage: https://doi.org/10.7927/x7fj-jj41
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Spatial Data Organization Information:

Indirect Spatial Reference Method:
Direct Spatial Reference Method: Raster
Raster Object Information:
Raster Object Type: Grid Cell
Row Count: 600
Column Count: 1440
Vertical Count: 1
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Horizontal Coordinate System Definition:
Geographic:
Latitude Resolution: 0.250000
Longitude Resolution: 0.250000
Geographic Coordinate Units: Decimal degrees
Geodetic Model:
Horizontal Datum Name: WGS84
Ellipsoid Name: WGS84
Semi-major Axis: 6378137.000000
Denominator of Flattening Ratio: 298.257224
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Distribution Information:

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Contact Organization Primary:
Contact Organization: NASA Socioeconomic Data and Applications Center (SEDAC)
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Contact Address:
Address Type: mailing and physical address
Address:
CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000
City: Palisades
State or Province: New York
Postal Code: 10964
Country: United States
Contact Voice Telephone: +1 845-365-8920
Contact TDD/TTY Telephone:
Contact Facsimile Telephone: +1 845-365-8922
Contact Electronic Mail Address: ciesin.info@ciesin.columbia.edu
Hours of Service:
Contact Instructions:
Resource Description: CIESIN_SEDAC_WATER_WSIM_GLDAS_V1
Distribution Liability:
CIESIN follows procedures designed to ensure that data disseminated by CIESIN are of reasonable quality. If, despite these procedures, users encounter apparent errors or misstatements in the data, they should contact SEDAC User Services at +1 845-365-8920 or via email at ciesin.info@ciesin.columbia.edu. Neither CIESIN nor NASA verifies or guarantees the accuracy, reliability, or completeness of any data provided. CIESIN provides this data without warranty of any kind whatsoever, either expressed or implied. CIESIN shall not be liable for incidental, consequential, or special damages arising out of the use of any data provided by CIESIN.
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Fees: 0
Ordering Instructions:
The data in Network Common Data Format Version 4 (.nc) format; and maps in Portable Document (PDF) and Portable Network Graphics (PNG) formats are available from the NASA Socioeconomic Data and Applications Center (SEDAC).
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Network Resource Name: https://sedac.ciesin.columbia.edu/data/set/water-wsim-gldas-v1/data-download
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Data accessible via the data set landing page.
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Network Resource Name: https://sedac.ciesin.columbia.edu/data/set/water-wsim-gldas-v1/maps
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Maps accessible via the data set landing page.
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Network Resource Name: https://sedac.ciesin.columbia.edu/data/set/water-wsim-gldas-v1/maps
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Maps accessible via the data set landing page.
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Beginning Date: 20220824
Beginning Time:
Ending Date: Present
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Metadata Reference Information:

Metadata Date: 20201106
Metadata Review Date: 20220824
Metadata Future Review Date:
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Center for International Earth Science Information Network (CIESIN) Metadata Administration
Contact Person:
Contact Position:
Contact Address:
Address Type: mailing and physical address
Address:
CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000
City: Palisades
State or Province: New York
Postal Code: 10964
Country: United States
Contact Voice Telephone: +1 845-365-8988
Contact TDD/TTY Telephone:
Contact Facsimile Telephone: +1 845-365-8922
Contact Electronic Mail Address: metadata@ciesin.columbia.edu
Hours of Service:
Contact Instructions:
Metadata Standard Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
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