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A Spatial Model of Atmospheric Deposition For the Northeastern U.S.
Entry ID: EOSWEBSTER_CLIMCALC_NE_US


Summary
Abstract: CLIMCALC is a simple model of physical and chemical climate for the northeasten United States (New York and New England) that can be incorporated into a geographic information system (GIS) for integration with ecosystem models presented. The variables include average maximum and minimum daily temperature, precipitation, humidity, and solar radiation, all at a monthly time step, as well as annual wet and dry deposition of sulfur and nitrogen. Regressions on latitude, longitude, and elevation are fitted to regional data bases of these variables The equations are combined with a digital elevation model (DEM) of the region to generate GIS coverages of each variableresults are from a model of atmospheric deposition called CLIMCALC. Spatial patterns of atmospheric deposition across the northeastern United States were evaluated and summarized in a simple model as a function of elevation and geographic position within the region. For wet deposition, 3-11 yr of annual concentration data for the major ions in precipitation were obtained from the National Atmospheric Deposition Program/National Trends Network (NADP/NTN) for 26 sites within the region. Concentration trends were evaluated by regression of annual mean concentrations against latitude and longitude. For nitrate, sulfate, and ammonium concentrations, a more than twofold linear decrease occurs from western New York and Pennsylvania to eastern Maine. These trends were combined with regional and elevational trends or precipitation amount, obtained from 30-yr records of annual precipitation at >300 weather stations, to provide long-term patterns of wet deposition. Regional trends of dry deposition of N and S compounds were determined using 2-3 yrs of particle and gas concentration data collected by the National Dry Deposition Network (NDDN) and several other sources, in combination with estimates of deposition velocities. Contrary to wet deposition trends, the dominant air concentration trends were steep decreases from south to north, creating regional decreases in total deposition (wet + dry) from the southwest to the northeast. This contrast between wet and dry deposition trends suggests that within the northeast the two deposition forms are received in different proportions from different source areas, wet deposited materials primarily from areas to the west and dry deposited materials primarily from urban areas along the southern edge of the region. The equations generated describing spatial patterns of wet and dry depositions within the region were entered into a geographic information system (GIS) containing a digital elevation model (DEM) in order to develop spatially explicit predictions of atmospheric deposition for the region.

Related URL
Link: View Related Information
Description: Pnet model journal articles, PnET source code, PnET executable.

Parent DIF
This description is a member of a collection. The collection is described in
EOSWEBSTER_PnET_Ecosystem_Model


Geographic Coverage
 N: 48.0 S: 38.0  E: -66.0  W: -77.0

Data Set Citation
Dataset Creator: Scott V. Ollinger, John D. Aber, Gary M. Lovett, Sarah E. Millham, Richard G. Lathrop, Jennifer M. Ellis
Dataset Title: A Spatial Model of Atmospheric Deposition For the Northeastern U.S.
Dataset Series Name: Ecological Applications 3(3) pp459-472
Dataset Release Date: 1993-01-01T00:00:00.000Z
Dataset Publisher: CSRC, University of New Hampshire
Version: Not provided
Data Presentation Form: ASCII and image
Online Resource: http://eos-earthdata.sr.unh.edu/

Dataset Creator: Scott V. Ollinger, John D. Aber, C. Anthony Federer, Gary M Lovett, Jennifer M. Ellis
Dataset Title: Modeling Physical and Chemical Climate of the Northeastern United States for a Geographic Information System
Dataset Series Name: U.S. Forest Service General Technical Report NE-191
Dataset Publisher: CSRC, University of New Hampshire
Version: Not provided
Data Presentation Form: ASCII and image
Online Resource: http://eos-earthdata.sr.unh.edu/


Temporal Coverage
Start Date: 1970-01-01


Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > Northeastern US
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MAINE > Eastern Maine
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW YORK > Western New York
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > PENNSYLVANIA


Science Keywords
ATMOSPHERE >PRECIPITATION >PRECIPITATION AMOUNT    [Definition]
ATMOSPHERE >ATMOSPHERIC CHEMISTRY >NITROGEN COMPOUNDS >NITROGEN OXIDES    [Definition]
ATMOSPHERE >ATMOSPHERIC CHEMISTRY >SULFUR COMPOUNDS >SULFUR OXIDES    [Definition]
ATMOSPHERE >ATMOSPHERIC CHEMISTRY >SULFUR COMPOUNDS >SULFATE    [Definition]


Project
ESIP >Earth Science Information Partners Program    [Information]


Keywords
ATMOSPHERIC DEPOSITION
NITROGEN
NORTHEASTERN US
RAINFALL
SULFUR


Data Set Progress
ACTIVE


Data Center
EOS-EARTHDATA, Complex Systems Research Center, Institute for the Study of Earth, Oceans, and Space, Univ. of New Hampshire    [Information]
Data Center URL: http://eos-earthdata.sr.unh.edu/

Data Center Personnel
Name: EARTH SYSTEMS RESEARCH CENTER
Phone: 1-603-862-3785
Fax: 603-862-0188
Email: eosearthdatasupport at foghorn.sr.unh.edu
Contact Address:
Complex Systems Research Center
Institute for the Study of Earth, Oceans, and Space
Morse Hall
University of New Hampshire
City: Durham
Province or State: New Hampshire
Postal Code: 03824
Country: USA



Distribution
Distribution_Media: CD-ROM, Online internet (HTTP)
Distribution_Format: ASCII, GIF images
Fees: None


Personnel
JOHN D. ABER
Role: INVESTIGATOR
Phone: 603-862-3045
Email: John.Aber at unh.edu
Contact Address:
University of New Hampshire
Complex Systems Research Center
City: Durham
Province or State: NH
Postal Code: 03824
Country: USA


ANNETTE SCHLOSS
Role: TECHNICAL CONTACT
Phone: 603-862-0348
Fax: 603-862-0188
Email: annette.schloss at unh.edu
Contact Address:
Complex Systems Research Center
Morse Hall
University of New Hampshire
City: Durham
Province or State: New Hampshire
Postal Code: 03824
Country: USA


RITA FREUDER
Role: METADATA AUTHOR
Phone: 603-862-1792
Fax: 603-862-0188
Email: Rita.Freuder at unh.edu
Contact Address:
Complex Systems Research Center
Institute for the Study of Earth, Oceans, and Space
Morse Hall
University of New Hampshire
City: Durham
Province or State: New Hampshire
Postal Code: 03824
Country: USA


SCOTT V. OLLINGER
Role: INVESTIGATOR
Phone: 603-868-2926
Email: Scott.Ollinger at unh.edu
Contact Address:
University of New Hampshire
CSRC/ Morse Hall
City: Durham
Province or State: NH
Postal Code: 03824
Country: USA


Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 1970-01-01
Last DIF Revision Date: 2018-11-12



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