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EIMS SUMMARY REPORT
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| Entry ID: 7316 |
Version: 1 |
| Title: ATMOSPHERIC DEPOSITION (IWI 1.3) |
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Abstract:
Atmospheric Deposition (IWI 1.3)
Importance of Atmospheric Deposition Estimates for Total Nitrogen
Nitrogen, along with phosphorous, is one of the primary nutrients that can cause algal blooms and other problems in surface and ground waters. Atmospheric deposition
is often one of the major sources of nitrogen. For instance, it has been identified as a primary source in the Chesapeake Bay. This data layer estimates total atmospheric
nitrogen deposition using the National Atmospheric Deposition Program/National Trends Network (NADP/NTN). Total Nitrogen was selected as the first of the
atmospheric lay ers to be included in IWI because it is considered a reliable value given the methods used by NADP/NTN and it is such an important potential pollutant
of surface waters. Total Nitrogen in this layer is the sum of the ammonia and nitrate values in NADP/NT N for 1996.
NADP/NTN is a nationwide network of precipitation monitoring sites. The network is a cooperative effort between many different groups, including the State
Agricultural Experiment Stations, U.S. Geological Survey, U.S. Department of Agriculture, and num erous other governmental and private entities. The NADP/NTN has
grown from 22 stations at the end of 1978, the first year, to over 200 sites spanning the continental United States, Alaska, and Puerto Rico.
The purpose of the network is to collect data on the chemistry of precipitation for monitoring of geographical and temporal long-term trends. The precipitation at each
station is collected weekly according to strict clean-handling procedures. It is the n sent to the Central Analytical Laboratory where it is analyzed for hydrogen (acidity as pH), sulfate, nitrate, ammonia, chloride, and base cations (such as calcium, magnesium, potassium and sodium).
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| Citation: ATMOSPHERIC DEPOSITION (IWI 1.3). |
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| DOWNLOADS / URL LINKS |
12 Files found |
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File Name: |
II21_R3MAP_1.GIF |
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File Description: |
ATMOSPHERIC DEPOSITION EPA REGION 3 MAP |
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GIF |
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20 |
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II21_USMAP_1.GIF |
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File Description: |
ATMOSPHERIC DEPOSITION NATIONAL MAP. |
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GIF |
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42 |
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II21_R10MAP_1.GIF |
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File Description: |
ATMOSPHERIC DEPOSITION EPA REGION 10 MAP |
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GIF |
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23 |
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| 4) |
File Name: |
II21_R1MAP_1.GIF |
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File Description: |
ATMOSPHERIC DEPOSITION EPA REGION 1 MAP |
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GIF |
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| 5) |
File Name: |
II21_R2MAP_1.GIF |
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File Description: |
ATMOSPHERIC DEPOSITION EPA REGION 2 MAP |
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GIF |
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| 6) |
File Name: |
II21_R9MAP_1.GIF |
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File Description: |
ATMOSPHERIC DEPOSITION EPA REGION 9 MAP |
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GIF |
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22 |
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NONE |
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Level 1 |
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| 7) |
File Name: |
II21_R4MAP_1.GIF |
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File Description: |
ATMOSPHERIC DEPOSITION EPA REGION 4 MAP |
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GIF |
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22 |
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| 8) |
File Name: |
II21_R5MAP_1.GIF |
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File Description: |
ATMOSPHERIC DEPOSITION EPA REGION 5 MAP |
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GIF |
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23 |
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| 9) |
File Name: |
II21_R6MAP_1.GIF |
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File Description: |
ATMOSPHERIC DEPOSITION EPA REGION 6 MAP |
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GIF |
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| 10) |
File Name: |
II21_R7MAP_1.GIF |
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File Description: |
ATMOSPHERIC DEPOSITION EPA REGION 7 MAP |
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GIF |
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| 11) |
File Name: |
II21_R8MAP_1.GIF |
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File Description: |
ATMOSPHERIC DEPOSITION EPA REGION 8 MAP |
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GIF |
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26 |
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| 12) |
File Name: |
II21_USFS_1.WPD |
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File Description: |
ATMOSPHERIC DEPOSITION DATA LAYER DESCRIPTION. |
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WPD |
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18 |
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| CONTACTS |
1 Contact found |
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| Name: BRETT MASON |
| Role: DEP |
| Primary Phone: 202-260-9113 |
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| RELATED ENTRIES |
0 Related Entries found |
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Administrative Details
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| ADMINISTRATIVE DETAILS |
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| Entry ID: 7316 |
Version: 1 |
| Title: ATMOSPHERIC DEPOSITION (IWI 1.3) |
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| Information Type: DATA SET |
Information Subtype: |
| Entry Date: 03-NOV-98 |
Revision Date: 06-NOV-03 |
| Release Date: 03-NOV-98 |
Review Date: |
| Sunset Date: |
Retire Date: |
| Status: PENDING |
| EIMS Partner: SURF YOUR WATERSHED (OW-SURF) |
| Collections: GENERAL, SCIENCE INVENTORY |
| DEP: BRETT MASON |
| Availability: PUBLIC |
Access Procedures:
No access procedures specified. |
Access Restrictions:
No specific access restrictions are recorded. |
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