Alexander M. Soroka
Nathaniel W. Rosenbloom
Anastashia M. King
Warren Li
Alfred Dinh
Meghan N. Petenbrink
20201202
Water bodies within 500 meters of poultry feeding operations on the Delmarva Peninsula in 2016 and 2017.
vector digital data
https://doi.org/10.5066/P9PSQ8IP
Data release contains 1710 polygons representing small bodies of water within 500 meters of poultry feeding operations on the Delmarva Peninsula. Ponds were identified using the USDA's National Agriculture Imagery Program's 2016 and 2017 products. Poultry feeding operations were described in location by Soroka and Duren (2020).
Data were created to support avian epidemiology research by the USGS Chesapeake Bay Studies Program.
Pond locations were based on a poultry feeding operation dataset published by Soroka and Duren (2020).
Soroka, A.M., and Duren, Z., 2020, Poultry feeding operations on the Delaware, Maryland, and Virginia Peninsula from 2016 to 2017: U.S. Geological Survey data release, https://doi.org/10.5066/P9MO25Z7.
2017
2016
observed
None planned
-76.4978
-74.8499
39.7494
37.0464
ISO 19115 Topic Category
inlandWaters
farming
None
Poultry Houses
Poultry
Chicken
Ponds
Wildlife Disease
Avian Influenza
Waterfowl
USGS Metadata Identifier
USGS:5f639ced82ce38aaa23aff54
None
Delaware
Maryland
Virginia
Eastern shore Maryland
Eastern shore Virginia
Delmarva
Chesapeake Bay
None. Please see 'Distribution Info' for details.
None. Users are advised to read the data set's metadata thoroughly to understand appropriate use and data limitations.
Alexander M Soroka
U.S. Geological Survey, NORTHEAST REGION
Physical Scientist
mailing address
5522 Research Park Drive
Catonsville
MD
21228
US
443-498-5529
asoroka@usgs.gov
The USGS Chesapeake Bay program which helped fund this work. The author recognizes Chris Hammond of the USGS and Andrew Garcia of Fairfax County public schools for their help facilitating this work. The author also acknowledges the Fremont Union school in Sunnyvale California for allowing their students to participate in the STEP-UP program. Finally, the author acknowledges the USGS STEP-UP program and their unique partnership which allowed this work to happen.
During process step 1, the county files were quickly scanned to ensure only water bodies were selected.
Data were originally created at a county level. In merging datasets together, borders of counties were examined to make sure that duplicate polygons were not created. The number of identified ponds is consistent as not all house clusters have water bodies near them. However as these ponds were identified using heads-up digitizing techniques, there may be water bodies which were missed or, outlines may not exactly match the shoreline of water bodies. Also, the dimensions of water bodies may change through time.
Data are considered complete.
A 500-meter linear buffer was created around the edge of polygons identified by Soroka and Duren (2020). Any water body which overlapped any portion of the buffer was captured. Water bodies which were large, and likely in previously published datasets (for example, the Choptank River) were not captured. Visible water bodies were digitized using ESRI Arcmap software using heads-up digitizing techniques. The entire Delmarva peninsula was analyzed on a county-by-county basis. Individual county files were merged when all counties were completed.
Soroka, A.M., and Duren, Z., 2020, Poultry feeding operations on the Delaware, Maryland, and Virginia Peninsula from 2016 to 2017: U.S. Geological Survey data release, https://doi.org/10.5066/P9MO25Z7.
20200410
Vector
G-polygon
Universal Transverse Mercator
18
0.9996
-75.0
0.0
500000.0
0.0
coordinate pair
0.6096
0.6096
meters
WGS_1984
WGS_84
6378137.0
298.257223563
WholeDLMVA_PondsFinal.shp
Polygon shapefile containing 1710 polygons representing small water bodies near poultry production facilities.
U.S. Geological Survey
FID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
Shape
Feature geometry.
ESRI
Coordinates defining the features.
O_ID
Equal to FID column plus one.
U.S. Geological Survey
Column values are the FID column plus one.
GS ScienceBase
U.S. Geological Survey
mailing address
Denver Federal Center, Building 810, Mail Stop 302
Denver
CO
80225
United States
1-888-275-8747
sciencebase@usgs.gov
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Digital Data
https://doi.org/10.5066/P9PSQ8IP
None
20201202
Alexander Soroka
U.S. Geological Survey
mailing and physical
5522 Research Park Drive
Catonsville
Maryland
21228
USA
443 498 5529
asoroka@usgs.gov
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998