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Global Multihazard Frequency and Distribution

Entry ID: CIESIN_CHRR_NDH_MULTI_HFD

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Summary

Abstract: Global Multihazard Frequency and Distribution is a 2.5 minute grid presenting a simple multihazard index based solely on summated single-hazard decile values. The hazards of interest include cyclones, droughts, earthquakes, floods, landslides, and volcanoes. This data set is further enriched by the inclusion of data pertaining to population, Gross Domestic Product (GDP), and transportation ...

Purpose: To provide insight into the frequency and distribution of multihazard events.

Related URL

Link: GET DATA

Description: Data download page.

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

N: 85.0

S: -58.0

E: 180.0

W: -180.0

Data Set Citation

Dataset Originator/Creator: 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

Dataset Title: Global Multihazard Frequency and Distribution

Dataset Release Date: 2005

Dataset Release Place: Palisades, NY

Dataset Publisher: Center for Hazards and Risk Research (CHRR)/Columbia University

Version: 1.00

Data Presentation Form: raster, map

Online Resource: http://sedac.ciesin.columbia.edu/data/set/ndh-multihazard-frequency...

Temporal Coverage

Start Date: 2000-01-01

Stop Date: 2000-01-01

Location Keywords

GEOGRAPHIC REGION > EQUATORIAL

GEOGRAPHIC REGION > GLOBAL

GEOGRAPHIC REGION > MID-LATITUDE

GEOGRAPHIC REGION > POLAR

Data Resolution

Latitude Resolution: 0.0417 Decimal degrees
Longitude Resolution: 0.0417 Decimal degrees
Horizontal Resolution Range: 1 km - < 10 km or approximately .01 degree - < .09 degree

Science Keywords

ATMOSPHERE > ATMOSPHERIC PHENOMENA > CYCLONES

ATMOSPHERE > ATMOSPHERIC PHENOMENA > DROUGHT

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

GEOSCIENTIFIC INFORMATION

INLAND WATERS

Project

EOSDIS > Earth Observing System Data Information System

ESIP > Earth Science Information Partners Program

NDH > Natural Disaster Hotspots

Quality Global Multihazard Frequency and Distribution is a combination of seven surfaces. These surfaces include each of the frequency and distribution deciles of the six hazards considered in the study (cyclones, droughts, earthquakes, floods, landslides, and volcanoes) of which only the top three deciles, the most hazardous, were retained (deciles 8-10). The seventh surface is a global decile of ... population density; explanations of the processes determining population and area per grid cell follow shortly. In the combined surface, each of the six hazard decile values and the population density decile value function together as a unique means of identifying and grouping grid cells. The item Value serves as a numeric identifier of these various unique, decile-based combinations. Theoretically, any results of aggregate analyses are applicable only to the hazards/population density decile combination and not to the individual grid cell. The population per grid cell (item Pop) is based on the Gridded Population of the World, Version 3 (GPWv3). The area per grid cell (item Areakm), in square kilometers, is calculated by subtracting from the area of the grid cell those areas identified as being permanently inundated using VMAP(0). The deciles of population density are determined by dividing the population per grid cell by the area per grid cell and classifying the resultant range of values into 10 classes of an approximately equal number of grid cells. VMAP(0) is also utilized to determine the length, in kilometers, of any major roads or railroads.
A multihazard index (item Indexmhz) is generated by summing all the decile values of the individual hazards. The multihazard index itself is not classified into deciles and has a theoretical range of 8-60.
Building upon a methodology presented by Sachs et al. (2003), a Gross Domestic Product (GDP) value (US$, 2000, purchase power parity adjusted (PPP)) is estimated for each grid cell. The process begins by determining the contribution of each subnational unit to national GDP using data of varied origin. The ratio of the subnational production to the national GDP is the contribution rate. To standardize estimates across countries, these contribution rates are applied to published World Bank GDP estimates to realize subnational GDP estimates.

The standardized, subnational GDP estimate is divided by the total population within the subnational unit to produce a spatially variable per capita GDP value. The GDP per grid cell is determined by multiplying the subnational, per capita GDP by the grid cell population density.

The GDP value presented in Global Multihazard Frequency and Distribution (item Gdpvalue) is specific to the unique hazards/population density decile combinations and not to individual grid cells (unless it is an artifact that there happens to be only one grid cell in a specific hazards/population density decile combination).

Agricultural GDP (item Agvalue) (US$, 2000, PPP) is also based on a process of spatial reallocation. At the level of the subnational unit, estimates are made of the agricultural GDP and of the total agricultural area within the subnational unit. Agricultural area is estimated from a re-interpretation of USGS Land Cover Characterization Data. A value of agricultural GDP per unit of agricultural area is determined at the subnational level; the agricultural GDP of a grid cell is determined by multiplying the agricultural area within the grid cell by the agricultural GDP per unit area. Agvalue is specific to the hazard/population density decile combination.

The values presented in the aggregtion analyses, items Gdpvalue, Agvalue, and Transkm, are not estimates of risk. These values are determined without any consideration of any type of hazard impact whatsoever. Their function is as a baseline from which to gauge any potential hazard impacts.

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 Bank for Reconstruction and
...

Ancillary Keywords

CIESIN > Environmental Protection > Disasters > Cyclones

CIESIN > Environmental Protection > Disasters > Disaster Area

Data Set Progress

COMPLETE

Originating Center

SEDAC

Data Center

Socioeconomic Data and Applications Center

Data Center URL: http://sedac.ciesin.columbia.edu/
Dataset ID: CIESIN_CHRR_NDH_MULTI_HFD

Data Center Personnel
Name: SEDAC USER SERVICES Phone: +1 845-365-8920 Fax: +1 845-365-8922 Email: ciesin.info at ciesin.columbia.edu Contact Address: 61 Route 9W, P.O. Box 1000 City: Palisades Province or State: NY Postal Code: 10964 Country: USA

World Data Center for Human Interactions in the Environment

Data Center URL: http://sedac.ciesin.columbia.edu/wdc/
Dataset ID: CIESIN_CHRR_NDH_MULTI_HFD

Data Center Personnel
Name: ROBERT CHEN Phone: 1-845-365-8952 Fax: 1-845-365-8922 Email: bchen at ciesin.columbia.edu Contact Address: WDC for Human Interactions in the Environment CIESIN/Columbia University P. O. Box 1000 61 Route 9W City: Palisades Province or State: NY Postal Code: 10964 Country: USA

Distribution

Distribution Media: Online FTP

Distribution Format: ASCII

Fees: 0

Personnel

SEDAC USER SERVICES

Role: TECHNICAL CONTACT

Phone: +1 845-365-8920

Fax: +1 845-365-8922

Email: ciesin.info at ciesin.columbia.edu

Contact Address:

61 Route 9W, P.O. Box 1000

City: Palisades

Province or State: NY

Postal Code: 10964

Country: USA

CIESIN METADATA ADMINISTRATION

Role: DIF AUTHOR

Phone: +1 845-365-8988

Fax: +1 845-365-8922

Email: metadata at ciesin.columbia.edu

Contact Address:

61 Route 9W, P.O. Box 1000

City: Palisades

Province or State: New York

Postal Code: 10964

Country: USA

Publications/References

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 (2005), Global Multihazard Mortality Risks and Distribution, Center for Hazards and Risk Research (CHRR)/Columbia University, Palisades, NY, http://sedac.ciesin.columbia.edu/data/set/ndh-multihazard-mortality...

Extended Metadata Properties

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Creation and Review Dates

DIF Creation Date: 2005-10-11

Last DIF Revision Date: 2013-02-14

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