NAWQA GIS Resources
For internal use only

NAWQA GIS

-Data sets
-Data aggregation
-Tools and techniques
-News/Ongoing projects
-Contacts
-LULC (wells)

DATA

-Data Synthesis
-Data Warehouse
-Bio-TDB

NAWQA

-Intranet
-Public

WRD

-Intranet
-Public

USGS

-Intranet
-Public

NAWQA GIS resources

2005 ARCHIVE of Ground Water GIS Ancillary Data

---------- 500-m Buffers around Sampling Points ----------

NOTE: You should be using the most recent data sets, not the archives.

WTF = weighting factors

09/29/2006
The data sets were updated for 2006 and the older versions were archived here.

03/28/2006
1992 and 1997 pesticide use estimates were updated using March 2006 version of NAWQAPT.

01/17/2006
We are adding sites from the December 2005 version of NAWQAPT to the data sets.

12/22/2005
We have reprocessed certain data sets because we revised the NLCDE and Nitrogen input data.

NLCDE land use and county/NLCDE weighting factors are done.

Fertilizer and manure data sets have been recomputed using revised county N input data and November 2005 version of NAWQAPT.

The atmospheric deposition data set has been recomputed using new 1KM grids of N atmospheric deposition and November 2005 version of NAWQAPT.

Nutrient inputs to cycle 1 wells have been recomputed using the new values of fertilizer, manure, and deposition N calculated for each buffer for each year.

06/01/2005
The buffer data sets were updated for the April 2005 version of NAWQAPT.

---------- Ground Water Study Areas (LUS and SUS) ----------

NOTE: You should be using the most recent data sets, not the archives.

BND = AREAID represents the entire areal extent of the hydrogeologic unit defined for study (LUS and SUS)
TRG = AREAID delineates the targeted land use within the overall hydrogeologic unit (LUS only)
WTF = weighting factors
CYC1 = cycle 1, includes cycle 1 studies and studies resampled in cycle 2
CYC2 = cycle 2, includes new studies for 2001 study units

NOTE:Resampled studies where boundaries were not revised between cycle 1 and cycle 2 are included with CYC1 data only. Resampled studies where boundaries were revised between cycle 1 and cycle 2 [albelusag1, nvbrsus2, trinsus3, sanjluscr1a, sanjlusor2a] are included in cycle 2 data.

6/22/2005
Replaced data (except for pesticides) for santlusrc1_bnd. The study area santlusrc1_bnd should be the same as santsus1_bnd, not the same as santsus2_bnd.

4/14/2005
All data for Cycle 2 studies has been replaced.

For the previous calculations, the doughnut holes in the some of the study areas had not been removed in the gridded versions of the study areas. This affects seven study areas:

GW Study with doughnuts cut out (correct) without doughnuts (incorrect)
AREAID GRID AREA (M2) GRID AREA (M2)
cnbrluscr1_bnd 7,044,202,800.000 7,392,941,100.000
cnbrluscr1_trg 5,706,866,700.000 6,766,256,700.000
connlusrc1_bnd 1,756,677,600.000 2,064,634,200.000
connlusrc1_trg 587,594,700.000 610,191,000.000
connsus2_bnd 6,848,918,100.000 7,617,282,300.000
nvbrlusrc1_trg 155,431,800.000 155,443,500.000
spltluscr2_trg 207,267,300.000 228,433,500.000

Also added studies that are resampled studies, but do not have the same boundaries in cycle 2 as were used in cycle 1: albelusag1, nvbrsus2, trinsus3, sanjluscr1a, sanjlusor2a.

Also added willlusag3, which has the same boundaries as cycle 1 willlusag2.

7/22/04
Data for sanjlusor1a and sanjlusor1b has been revised.
SANJ sent a different boundary for these areas. (Both studies use the same boundary.)

6/25/04 --NOTE!!--
FOUND A PROBLEM. AREA DATA (except for NRI) HAD TO BE RE-GENERATED. IF YOU PULLED ANY DATA SETS for the GW STUDY AREAS BEFORE THIS DATE, YOU MUST PULL THEM AGAIN.

2003 data archives.

Older data archives.

--------------------------

Email: NAWQA National Synthesis GIS
GS-W NAWQA nsgis
URL: http://water.usgs.gov/nawqa-only/gwdat2005.html
Maintainer: Kerie Hitt
Last modified: Tuesday, 25-Nov-2008 14:21:07 EST