Natural Disaster Hotspots

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Global Drought Hazard Frequency and Distribution, v1 (1980 – 2000)

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Citation:
Citation Information:
Originator: Center for Hazards and Risk Research - CHRR - Columbia University, Center for International Earth Science Information Network - CIESIN - Columbia University, and International Research Institute for Climate and Society - IRI - Columbia University
Publication Date: 20051231
Publication Time:
Title:
Global Drought Hazard Frequency and Distribution
Edition: 1.00
Geospatial Data Presentation Form: raster, map, map service
Series Information:
Series Name:
Issue Identification:
Publication Information:
Publication Place: Palisades, NY
Publisher: Center for Hazards and Risk Research (CHRR)/Columbia University
Other Citation Details:
Online Linkage: https://doi.org/10.7927/H4VX0DFT
Larger Work Citation:
Citation Information:
Originator: Dilley, M., R.S. Chen, U. Deichmann, A.L. Lerner-Lam, M. Arnold, J. Agwe, P. Buys, O. Kjekstad, B. Lyon, and G. Yetman
Publication Date: 20050430
Publication Time:
Title:
Natural Disaster Hotspots: A Global Risk Analysis
Edition:
Geospatial Data Presentation Form: report
Series Information:
Series Name:
Issue Identification:
Publication Information:
Publication Place: Washington, D.C.
Publisher: World Bank
Other Citation Details:
Online Linkage: http://documents.worldbank.org/curated/en/621711468175150317/Natural-disaster-hotspots-A-global-risk-analysis
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Description:
Abstract:
The Global Drought Hazard Frequency and Distribution is a 2.5 minute grid based upon the International Research Institute for Climate Prediction's (IRI) Weighted Anomaly of Standardized Precipitation (WASP). Utilizing average monthly precipitation data from 1980 through 2000 at a resolution of 2.5 degrees, WASP assesses the precipitation deficit or surplus over a three month temporal window that is weighted by the magnitude of the seasonal cyclic variation in precipitation. The three months' averages are derived from the precipitation data and the median rainfall for the 21 year period is calculated for each grid cell. Grid cells where the three month running average of precipitation is less than 1 mm per day ae excluded. Drought events are identified when the magnitude of a monthly precipitation deficit is less than or equal to 50 percent of its longterm median value for three or more consecutive months. Grid cells are then divided into 10 classes having an approximately equal number of grid cells. Higher grid cell values denote higher frequencies of drought occurrences. This data set is the result of collaboration among the Columbia University Center for Hazards and Risk Research (CHRR), Columbia University International Research Institute for Climate Prediction (IRI), and Columbia University Center for International Earth Science Information Network (CIESIN).
Purpose:
To provide a means of assessing the relative distribution and frequency of global drought hazard.
Supplemental Information:
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 19800101
Beginning Time:
Ending Date: 20001231
Ending Time:
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: 85.000000
South Bounding Coordinate: -58.000000
Data Set G-Polygon:
Data Set G-Polygon Outer G-Ring:
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Keywords:
Theme:
Theme Keyword Thesaurus: SEDAC Theme
Theme Keyword: Agriculture
Theme Keyword: Climate
Theme Keyword: Hazards
Theme Keyword: Sustainability
Theme Keyword: Water
Theme:
Theme Keyword Thesaurus: Data Granularity
Theme Keyword: Global
Theme Keyword: Continent
Theme:
Theme Keyword Thesaurus: ISO Topic
Theme Keyword: Climatology/Meteorology/Atmosphere
Theme:
Theme Keyword Thesaurus: GCMD Science Keywords, Version 8.6
Theme Keyword: EARTH SCIENCE > HUMAN DIMENSIONS > NATURAL HAZARDS > DROUGHTS
Place:
Place Keyword Thesaurus: CIESIN Location Terms, Version 3.1
Place Keyword: Global
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Access Constraints: None
Use Constraints:
The Trustees of Columbia University in the City of New York, Center for Hazards and Risk Research (CHRR), and International Research Institute for Climate and Society (IRI) hold the copyright of this data set. Users are prohibited from any commercial, non-free resale, or redistribution without explicit written permission from the CHRR, CIESIN, and IRI. Users should acknowledge CHRR, CIESIN, and IRI as the source used in the creation of any reports, publications, new data sets, derived products, or services resulting from the use of this data set. CHRR, CIESIN, and IRI also request reprints of any publications and notification of any redistribution efforts.
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: NASA Socioeconomic Data and Applications Center (SEDAC)
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: USA
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/ndh/ndh-drought-hazard-frequency-distribution/drought-frequency-distribution-thumbnail.jpg
Browse Graphic File Description:
Global Drought Hazard Frequency and Distribution
Browse Graphic File Type: JPEG
Data Set Credit:
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Cross Reference:
Citation Information:
Originator: Center for Hazards and Risk Research - CHRR - Columbia University, Center for International Earth Science Information Network - CIESIN - Columbia University, and International Bank for Reconstruction and Development - The World Bank
Publication Date: 20051231
Publication Time:
Title:
Global Drought Total Economic Loss Risk Deciles
Edition: 1.00
Geospatial Data Presentation Form: raster, map, map service
Series Information:
Series Name:
Issue Identification:
Publication Information:
Publication Place: Palisades, NY
Publisher: Center for Hazards and Risk Research (CHRR)/Columbia University
Other Citation Details:
Online Linkage: https://doi.org/10.7927/H4GQ6VP4
Larger Work Citation:
Citation Information:
Originator: Dilley, M., R.S. Chen, U. Deichmann, A.L. Lerner-Lam, M. Arnold, J. Agwe, P. Buys, O. Kjekstad, B. Lyon, and G. Yetman
Publication Date: 20050430
Publication Time:
Title:
Natural Disaster Hotspots: A Global Risk Analysis
Edition:
Geospatial Data Presentation Form: report
Series Information:
Series Name:
Issue Identification:
Publication Information:
Publication Place: Washington, D.C.
Publisher: World Bank
Other Citation Details:
Online Linkage: http://documents.worldbank.org/curated/en/621711468175150317/Natural-disaster-hotspots-A-global-risk-analysis
Larger Work Citation:
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Citation Information:
Originator: Center for Hazards and Risk Research - CHRR - Columbia University, Center for International Earth Science Information Network - CIESIN - Columbia University, and International Bank for Reconstruction and Development - The World Bank
Publication Date: 20051231
Publication Time:
Title:
Global Drought Mortality Risks and Distribution
Edition: 1.00
Geospatial Data Presentation Form: raster, map, map service
Series Information:
Series Name:
Issue Identification:
Publication Information:
Publication Place: Palisades, NY
Publisher: Center for Hazards and Risk Research (CHRR)/Columbia University
Other Citation Details:
Online Linkage: https://doi.org/10.7927/H4R49NQV
Larger Work Citation:
Citation Information:
Originator: Dilley, M., R.S. Chen, U. Deichmann, A.L. Lerner-Lam, M. Arnold, J. Agwe, P. Buys, O. Kjekstad, B. Lyon, and G. Yetman
Publication Date: 20050430
Publication Time:
Title:
Natural Disaster Hotspots: A Global Risk Analysis
Edition:
Geospatial Data Presentation Form: report
Series Information:
Series Name:
Issue Identification:
Publication Information:
Publication Place: Washington, D.C.
Publisher: World Bank
Other Citation Details:
Online Linkage: http://documents.worldbank.org/curated/en/621711468175150317/Natural-disaster-hotspots-A-global-risk-analysis
Larger Work Citation:
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Larger Work Citation:
Cross Reference:
Citation Information:
Originator: Center for Hazards and Risk Research - CHRR - Columbia University, Center for International Earth Science Information Network - CIESIN - Columbia University, and International Bank for Reconstruction and Development - The World Bank
Publication Date: 20051231
Publication Time:
Title:
Global Drought Proportional Economic Loss Risk Deciles
Edition: 1.00
Geospatial Data Presentation Form: raster, map, map service
Series Information:
Series Name:
Issue Identification:
Publication Information:
Publication Place: Palisades, NY
Publisher: Center for Hazards and Risk Research (CHRR)/Columbia University
Other Citation Details:
Online Linkage: https://doi.org/10.7927/H4MG7MDV
Larger Work Citation:
Citation Information:
Originator: Dilley, M., R.S. Chen, U. Deichmann, A.L. Lerner-Lam, M. Arnold, J. Agwe, P. Buys, O. Kjekstad, B. Lyon, and G. Yetman
Publication Date: 20050430
Publication Time:
Title:
Natural Disaster Hotspots: A Global Risk Analysis
Edition:
Geospatial Data Presentation Form: report
Series Information:
Series Name:
Issue Identification:
Publication Information:
Publication Place: Washington, D.C.
Publisher: World Bank
Other Citation Details:
Online Linkage: http://documents.worldbank.org/curated/en/621711468175150317/Natural-disaster-hotspots-A-global-risk-analysis
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Data Quality Information:

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Lineage:
Source Information:
Source Citation:
Citation Information:
Originator: International Research Institute for Climate Prediction (IRI)
Publication Date:
Publication Time:
Title:
Global WASP Analyses
Edition:
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Other Citation Details:
Online Linkage: http://ingrid.ldeo.columbia.edu/maproom/.Global/.Precipitation/WASP_Indices.html
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Time Period Information:
Range of Dates/Times:
Beginning Date: 1980
Beginning Time:
Ending Date: 2000
Ending Time:
Source Currentness Reference:
Source Citation Abbreviation:
Source Contribution:
Provided means of identifying global drought hazard.
Process Step:
Process Description:
Global Drought Hazard Frequency and Distribution used the Weighted Anomaly of Standardized Precipitation (WASP) developed by IRI, computed on a 2.5 minute grid from monthly average precipitation data for 1980 through 2000. The WASP assesses the precipitation deficit or surplus over a specified number of months, weighted by the magnitude of the seasonal cyclic variation in precipitation. A three-month running average was applied to the precipitation data and the median rainfall for the 21-year period calculated for each grid point. A mask was applied to eliminate grid points where the three-month running average precipitation was less than 1 millimeter per day. This excluded both desert regions and dry seasons from analysis. For the remaining points, a drought event was identified when the magnitude of a monthly precipitation deficit was less than or equal to 50 percent of its long-term median value for three or more consecutive months. The final surface was created by classifiying the number of drought events into deciles, 10 classes of an approximately equal number of grid cells. An additional analysis mask excluded those portions of the land surface where the population density was less than 5 persons per square kilometer and there was no significant agriculture.
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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: 3432
Column Count: 8640
Vertical Count: 1
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Spatial Reference Information:

Horizontal Coordinate System Definition:
Geographic:
Latitude Resolution: 0.041700
Longitude Resolution: 0.041700
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:

Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: NASA Socioeconomic Data and Applications Center (SEDAC)
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: USA
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_CHRR_NDH_DROUGHT_HFD
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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The data in American Standard Code for Information Interchange (.asc) format; the maps in Portable Document Format (.pdf), and Portable Network Graphics (.png) formats; and the web map services 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/ndh-drought-hazard-frequency-distribution/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/ndh-drought-hazard-frequency-distribution/maps
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Network Resource Name: https://sedac.ciesin.columbia.edu/data/set/ndh-drought-hazard-frequency-distribution/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/ndh-drought-hazard-frequency-distribution/maps/services
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Beginning Date: 20051231
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Ending Date: Present
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Metadata Reference Information:

Metadata Date: 20050929
Metadata Review Date: 20220413
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Contact Organization Primary:
Contact Organization: Center for International Earth Science Information Network (CIESIN) Metadata Administration
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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: USA
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
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