U'S' DROUGHT MONITOR

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U.S. DROUGHT MONITOR GIS
Exploring ArcGIS Developments and the
Possibilities
Harlan D. Shannon U.S. Dept. of
Agriculture Office of the Chief Economist World
Agricultural Outlook Board Washington D.C., U.S.A.
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U.S. DROUGHT MONITOR GIS
Introduction

• ArcGIS version of the USDM
• Benefits of using GIS
• WAOB product development
• Future work

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Similar to CorelDraw, ArcGIS has solid vector
drawing capabilities
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In contrast to CorelDraw, ArcGIS offers spatial
analysis tools
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ArcGIS also offers georeferencing capabilities
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ArcGIS scripting capabilities ensure product
continuity
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Benefits of using GIS

• GIS benefits extend well beyond facilitating USDM
  creation each week
• Many individuals, institutions, organizations,
  and agencies use GIS
• GIS shapefiles easily distributable
• Underlying spatial data enables the quantitative
  analysis of drought

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U.S. DROUGHT MONITOR GIS
WAOB Product Development
Product 1
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WAOB Product Development
Product 1
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WAOB Product Development
Product 2
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WAOB Product Development
Product 2
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WAOB Product Development
Product 2
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WAOB Product Development
Product 3
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WAOB Product Development
Product 3
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Future Work

• Improve methodology for creating USDM weekly
• Convert more drought indices into GIS-compatible
  format
• Create/update shapefile metadata
• Make GIS data available for public distribution

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U.S. DROUGHT MONITOR GIS
Future Work

• Improve methodology for creating USDM weekly
• Convert more drought indices into GIS-compatible
  format
• Create/update shapefile metadata
• Make GIS data available for public distribution

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U.S. DROUGHT MONITOR GIS
Future Work
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U.S. DROUGHT MONITOR GIS
Future Work

• Improve methodology for creating USDM weekly
• Convert more drought indices into GIS-compatible
  format
• Create/update shapefile metadata
• Make GIS data available for public distribution

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Future Work

• Improve methodology for creating USDM weekly
• Convert more drought indices into GIS-compatible
  format
• Create/update shapefile metadata
• Make GIS data available for public distribution

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U.S. DROUGHT MONITOR GIS
Exploring ArcGIS Developments and the
Possibilities
Thank you!
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U.S. DROUGHT MONITOR GIS
ArcGIS Version of the USDM

• In May 1999, USDM introduced as an experimental
  CorelDraw generated product
• CorelDraw provided the capability to draw vector
  graphics, add annotation, and export maps in
  various formats
• Following a short period of developing several
  map iterations, USDM authors settled on a format
  which has remained relatively consistent to date

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ArcGIS Version of the USDM

• In March 2003, ArcGIS version of the USDM product
  ready for distribution
• In August 2003, USDM introduced as an operational
  ArcGIS product
• Steep learning curve made initial implementation
  of the ArcGIS product challenging
• Since mid-October 2003, ArcGIS version of the
  USDM operational

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WAOB Product Development
Product 3