Acid Rain in the Northeastern United States, 1980-90Entry ID: USDA0045
Abstract: This database contains spring (April-June) and summer
(July-September) nitrate and sulfate wet deposition records for
1980-90, at the state and county levels of aggregation for the
states in the northeastern U.S. The following states are
included in the database: Connecticut, Delaware, the District
of Columbia, Maine, Maryland, Massachusetts, New Hampshire, New
Jersey, New York, North Carolina, ... Ohio, Pennsylvania, Rhode
Island, Vermont, Virginia, and West Virginia.
Monitoring station data was obtained from the National
Atmospheric Deposition Program/National Trends Network in Fort
Collins, Colorado, which maintains a system of approximately 200
monitoring stations throughout the United States and Canada.
Concentrations measured in milligrams per liter were converted
to depositions, weighting by rainfall at each monitoring station
before the Kriging procedure was performed. The state- and
county-level depositions could be reconverted to concentrations
using state and county estimates of rainfall for the region.
Collection Organization: National Atmospheric Deposition
Program/National Trends Network, Ft. Collins, Colorado.
Collection Methodology: The aggregates estimate the magnitude
of nitrate and sulfate wet depositions (kilograms per hectare)
for the state or county, constructed from observations taken at
monitoring sites located throughout the region. The
geostatistical spatial smoothing technique known as Kriging was
used to interpolate the monitoring station data to a 40 by 32
block grid of 30 minute by 30 minute blocks covering the entire
region. These blocks were then overlaid on maps of the state
and county boundaries and blocks and portions of blocks that
fell in each region were weighted by land area and averaged over
the county or state.
Collection Frequency: Annually.
Update Characteristics: Updated in its entirety.
The data resides in two LOTUS (.WK1) spreadsheet files.
Data Center: Economic Research Service
Dissemination Media: Diskette, Internet gopher, Internet home
File Format: ASCII, Lotus/dBase
Access Instructions: Call NASS at 1-800-999-6779 for historical
series data available on diskette. For historical series data
available online, connect to the Internet home page at Cornell
Access to the data or reports may be achieved through the
ERS-NASS information system:
For subscription direct to an e-mail address, send an e-mail
Type the word "lists" (without quotes) in the body of the
Start Date: 1980-01-01Stop Date: 1990-12-31
AGRICULTURE > SOILS
ATMOSPHERE > PRECIPITATION > ACID RAIN
ATMOSPHERE > PRECIPITATION > PRECIPITATION AMOUNT
HUMAN DIMENSIONS > ENVIRONMENTAL IMPACTS > ACID DEPOSITION
HUMAN DIMENSIONS > ENVIRONMENTAL IMPACTS > CONTAMINANT LEVELS/SPILLS
LAND SURFACE > LAND USE/LAND COVER > LAND PRODUCTIVITY
LAND SURFACE > SOILS
ISO Topic Category
Quality Data distributed with this product may include both published
and unpublished statistics in the public domain. Distribution
in this form does not imply U.S. Department of Agriculture
approval of a particular data series or statistic, nor does the
Department attest to their accuracy. Moreover, the Economic
Research Service makes no warranty that data supplied in this
form are either accurate transcriptions from source materials or
appropriate for a particular user purpose.
Role: TECHNICAL CONTACT
Email: dwest at econ.ag.gov
USDA Economic Research Service Natural Resources and Environment Division (NRED) 1301 New York Avenue, NW, Room 532E
Province or State: DC
Postal Code: 20005-4788
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2005-09-15
Last DIF Revision Date: 2005-09-19