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File:Map of states and counties affected by the Dust Bowl, sourced from US federal government dept. (NRCS SSRA-RAD).svg

From Wikipedia, the free encyclopedia

Original file(SVG file, nominally 691 × 633 pixels, file size: 4.65 MB)

Summary

Description
Based only on that PNG image. I made this file primarily using QGIS, and the following public domain [

https://www.census.gov/geo/maps-data/data/tiger-cart-boundary.html shapefiles from census.gov]:

cb_2015_us_state_20m cb_2015_us_county_5m

The map projection is:

NAD83(2011) / Texas Centric Albers Equal Area

+proj=aea +lat_1=27.5 +lat_2=35 +lat_0=18 +lon_0=-100 +x_0=1500000 +y_0=6000000 +ellps=GRS80 +units=m +no_defs

The original PNG, rotated and scaled slightly to fit this version of the Albers EA projection, is in the image for your comparison.

The approximated areas of the Dust Bowl were traced from the PNG in InkScape, no shapefile was made or used.

This is definitely the current crown jewel of my Wikipedia images. It took the longest to research and make and it took lots of software. But it was definitely worth it - this map has been requested by readers of w:en:Dust Bowl three times. Someone had to deliver eventually.
Date
Source

Based on map by ID m12545a/55 by Natural Resources Conservation Service, Soil Science and Resource Assessment, Resource Assessment Division (NRCS SSRA- RAD) Baitsville, MD Jan 2012

The source of that map: Map 2579, March 1954, U.S. Dept. Of Agriculture Soil Conservation Service

https://www.nrcs.usda.gov/wps/portal/nrcs/detail/national/about/history/?cid=stelprdb1049437
Author Soil Science and Resource Assessment, Resource Assessment Division (NRCS SSRA-RAD) (Division of the U.S. Dept. Of Agriculture)
SVG development
InfoField
 
The source code of this large SVG is invalid due to an error.
 
This oversized W3C-invalid map was created with Inkscape.
 
and with QGIS.

Licensing

Public domain
This image or file is a work of a United States Census Bureau employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.

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Captions

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Items portrayed in this file

depicts

15 January 2012

image/svg+xml

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current11:47, 26 January 2017Thumbnail for version as of 11:47, 26 January 2017691 × 633 (4.65 MB)PsiĥedelistoAttempt to fix the font by using the recommended font definition on Help:SVG
03:49, 22 January 2017Thumbnail for version as of 03:49, 22 January 2017691 × 633 (4.65 MB)Psiĥedelistorecolor miscolored county
12:41, 15 January 2017Thumbnail for version as of 12:41, 15 January 2017691 × 633 (4.65 MB)PsiĥedelistoUser created page with UploadWizard

Global file usage

The following other wikis use this file:

Metadata

Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.