NAWQA GIS ancillary data: Mean annual precipitation and temperature (1980-97 DAYMET data) for ground water study areas (Land Use Studies and Subunit Surveys)

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Metadata:

Identification_Information:

Citation:
Citation_Information:
Originator: Hitt, Kerie J.
Publication_Date: 200504
Title:
NAWQA GIS ancillary data: Mean annual precipitation and temperature (1980-97 DAYMET data) for ground water study areas (Land Use Studies and Subunit Surveys)
Online_Linkage: <URL:http://water.usgs.gov/nawqa-only/gw.html>

Description:
Abstract:

This data set consists of 1980-97 mean annual precipitation and temperature for NAWQA ground water study areas (Land Use Studies and Subunit Surveys). The precipitation and temperature data are from DAYMET. The precipitation and temperature input grids were prepared by James Falcone.

Purpose:

This is one of the ancillary GIS data layers developed to characterize NAWQA ground water studies for national synthesis of water-quality data.

Supplemental_Information:

The input data set did not include Alaska and Hawaii.

Time_Period_of_Content:
Time_Period_Information:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 1991
Single_Date/Time:
Calendar_Date: 2001

Currentness_Reference:
The data set is intended to represent conditions for the early 1990's to late 1990's.

Status:
Progress: Complete
Maintenance_and_Update_Frequency:
NAWQA cycle 2 study areas will be added as their boundaries become available. DAYMET will add years 1998-2001 to the period of record.

Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -125
East_Bounding_Coordinate: -66
North_Bounding_Coordinate: 50
South_Bounding_Coordinate: 24

Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Ground water
Theme_Keyword: Surface water
Theme_Keyword: Water quality
Theme_Keyword: Temperature
Theme_Keyword: Precipitation
Theme_Keyword: DAYMET
Theme_Keyword: Climate data
Theme_Keyword: Land use study
Theme_Keyword: Subunit survey
Theme_Keyword: Major aquifer

Access_Constraints: The data set is for internal USGS access only.

Use_Constraints: The data set is for internal USGS use only.

Data_Quality_Information:

Logical_Consistency_Report: none
Completeness_Report: none

Lineage:

Source_Information:
Source_Citation:
Citation_Information:
Originator: James Falcone
Publication_Date: 200403
Title: Daymet climate data
Type_of_Source_Media: On line
Source_Time_Period_of_Content:
Time_Period_Information:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 1980
Single_Date/Time:
Calendar_Date: 1997
Source_Currentness_Reference: Ground condition
Source_Citation_Abbreviation: None
Source_Contribution:
1K grids of mean annual precipitation and temperature (1980-97) from DAYMET (URL:<http://www.daymet.org>).

Source_Information:
Source_Citation:
Citation_Information:
Originator: Hitt, K.J.
Publication_Date: 2004
Title:
Boundaries of the land use study (LUS) and subunit survey (SUS) ground-water studies conducted by the National Water-Quality Assessment (NAWQA) study units
Edition: 3
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Type_of_Source_Media: digital files
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1991
Ending_Date: 2004
Source_Currentness_Reference: current
Source_Citation_Abbreviation: GWPOLYS
Source_Contribution:
The boundaries of the LUS and SUS ground water study areas, as submitted by the NAWQA study units.

Process_Step:
Process_Date: 20040331
Process_Description:
Ground water study boundaries are gridded at 30 meters and snapped to the NLCDE. Data processing occurs at 30 meters resolution.

The average precipitation and temperature were determined for the study area by running the GRID command, "zonalstats" with the mean option.

Processing routines are from the NAWQA area characterization toolbox.

Process_Step:
Process_Date: 20040524
Process_Description:

We realized that the source grids for precipitation and temperature were coded as "zero" instead of "no data" in areas outside the boundaries of the United States. This would have affected the mean calculated for LUS/SUS studies near the coastline or partly outside the United States.

The means were recalculated using "no data" instead of zero.

Values changed for: 

 AREAID             NEW PRECIP   OLD PRECIP  NEW TEMP      OLD TEMP
                     VALUE        VALUE        VALUE        VALUE
----------------------------------------------------------------------
Cycle 1
 albelusag1_bnd      129.9578     129.8462   16.5635      16.5493
 albelusag1_trg      129.9574     129.8468   16.5635      16.5494
 albelusag2_bnd      129.9578     129.8462   16.5635      16.5493
 albelusag2_trg      129.9574     129.8468   16.5635      16.5494
 albelusur1_bnd      115.1290     114.5491   15.5127      15.4346
 albelusur1_trg      115.1230     115.0579   15.4962      15.4874
 albesus1_bnd        123.1111     123.0984   15.8860      15.8844
 albesus2_bnd        128.4476     128.2902   16.4548      16.4346
 albesus4_bnd        125.4596     125.4587   15.9435      15.9434
 albesus5_bnd        134.4961     133.7735   16.8999      16.8091
 albesus6_bnd        124.6645     124.6109   16.0515      16.0447
 cazbsus3_bnd         44.8418      44.8301   16.2748      16.2706
 connlusag1_bnd      120.4800     120.4537    8.3919       8.3901
 connlusag1_trg      117.2949     117.2794    8.2503       8.2492
 connlusfo1_bnd      120.4800     120.4537    8.3919       8.3901
 connlusfo1_trg      121.1744     121.1687    7.9477       7.9474
 connlusur1_bnd      120.4800     120.4537    8.3919       8.3901
 connlusur1_trg      121.6669     121.6361    9.3004       9.2980
 connsus1_bnd        125.3589     124.3451    7.0842       7.0269
 dlmvluscr1_bnd      113.3816     113.0523   13.6974      13.6576
 dlmvluscr1_trg      113.4364     113.3698   13.6057      13.5977
 dlmvsus1_bnd        113.3816     113.0514   13.6974      13.6575
 gafllusur1a_bnd     133.2991     133.2562   20.2687      20.2622
 gafllusur1b_bnd     133.2991     133.2562   20.2687      20.2622
 gafllusur2a_bnd     133.2991     133.2562   20.2687      20.2622
 gafllusur2b_bnd     133.2991     133.2562   20.2687      20.2622
 gafllusur3a_bnd     133.2991     133.2562   20.2687      20.2622
 gafllusur3b_bnd     133.2991     133.2562   20.2687      20.2622
 linjluscr1_bnd      114.7485     114.6479   12.2959      12.2851
 linjlusfo1_bnd      114.7485     114.6479   12.2959      12.2851
 linjlusrc1_bnd      114.7485     114.6479   12.2959      12.2851
 linjlusur1_bnd      114.7485     114.6479   12.2959      12.2851
 linjsus2_bnd        114.7485     114.6479   12.2959      12.2851
 necblusrc1_bnd      122.6853     122.6381    9.3038       9.3002
 necblusrc1_trg      123.7224     123.6644    9.6794       9.6748
 necbsus1_bnd        117.7263     117.6448    7.0217       7.0168
 necbsus2_bnd        120.2981     120.2552    6.2207       6.2184
 necbsus3_bnd        121.3812     121.3248    8.7465       8.7424
 pugtluscr1_bnd      152.5861     150.5126    9.7629       9.6303
 pugtluscr1_trg      117.2179      54.3245   10.1990       4.7267
 pugtlusrs1_bnd      152.5861     150.5126    9.7629       9.6303
 pugtlusrs1_trg      120.3412     120.3199   10.7824      10.7805
 pugtsus1_bnd        152.5861     150.5126    9.7629       9.6303
 rednsus1_bnd         52.6182      52.6168    4.9083       4.9082
 sanalusrc1_bnd       37.1570      37.1388   17.9287      17.9199
 sanasus2_bnd         37.1570      37.1388   17.9287      17.9199
 santluscr1_bnd      129.1760     129.0466   18.4504      18.4319
 santluscr1_trg      125.3789     125.3643   18.2117      18.2096
 santlusrc1_bnd      129.1760     129.0466   18.4504      18.4319
 santsus2_bnd        129.1760     129.0466   18.4504      18.4319
 sofllusag1_bnd      155.4297     155.2987   24.3284      24.3079
 sofllusfo1_bnd      132.5305     132.5141   23.4020      23.3991
 sofllusfo1_trg      133.1674     133.1602   23.4205      23.4192
 sofllusor1_bnd      132.5305     132.5141   23.4020      23.3991
 sofllusot1_bnd      155.4297     155.2987   24.3284      24.3079
 sofllusot1_trg      159.1629     159.1510   24.3510      24.3492
 sofllusrc1a_bnd     155.4297     155.2987   24.3284      24.3079
 sofllusrc1a_trg     161.9904     161.9819   24.4036      24.4023
 sofllusrc1b_bnd     155.4297     155.2987   24.3284      24.3079
 sofllusrc1b_trg     161.9904     161.9819   24.4036      24.4023
 soflsus1_bnd        155.4297     155.2987   24.3284      24.3079
 trinsus3_bnd        136.5330     136.1581   19.8494      19.7949
 wmicsus1_bnd         83.0688      83.0340    6.5412       6.5384

Cycle 2
 albesus7_bnd        136.7054     131.3408   16.9175      16.2536
 connsus2_bnd        119.3503     119.2919    8.4638       8.4597
 podlsus2_bnd        113.5091     113.1997   12.9036      12.8684
Process_Step:
Process_Date: 20040630
Process_Description:
Ground water study boundaries were re-gridded to correct a problem. (Previous version did not account for interior areas that are excluded from the study area.) The procedure to calculate a mean for each climate variable was repeated.

Process_Step:
Process_Date: 20040722
Process_Description:
Received new boundary for cycle 1 SANJLUSOR1A_TRG, SANJLUSOR1B_TRG. Recalculated climate data for these areas.

Process_Step:
Process_Date: 20050412
Process_Description:
Recalculated data for several cycle 2 areas. 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:

with doughnuts without doughnuts cut out (correct) not cut out (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.

Process_Step:
Process_Date: 20050622
Process_Description:
Replaced data for santlusrc1_bnd. The study area santlusrc1_bnd should be the same as santsus1_bnd, not the same as santsus2_bnd.

Spatial_Data_Organization_Information:
Indirect_Spatial_Reference:

The data set is referenced by SUCODE (NAWQA study unit/network code) and AREAID (ground water study boundary coverage). Two kinds of ground water network polygon coverages exist: 1) BND coverages, which represent the entire areal extent of the hydrogeologic unit defined for study, and 2) TRG coverages, which delineate the targeted land use within the BND.

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

The data set is organized by SUCODE and AREAID. The precipitation and temperature numbers represent weighted averages for the study area.

The fields are: 

SUID                  NAWQA study unit
SUCODE                NAWQA study unit/network code
AREAID                Ground water boundary coverage
DAYMET_PRECIP_AV      Mean annual precipitation (1980-97) from DAYMET (cm)
DAYMET_TEMP_AV        Mean annual temperature (1980-97) from DAYMET (degrees C)
Entity_and_Attribute_Detail_Citation: None

Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Kerie Hitt
Contact_Organization: USGS NAWQA Nutrients National Synthesis
Contact_Address:
Address_Type: Mailing address
Address: 413 National Center
City: Reston
State_or_Province: VA
Postal_Code: 20192
Country: USA
Contact_Electronic_Mail_Address: kjhitt@usgs.gov
Contact_Voice_Telephone: 703 648-6854
Contact_Instructions: Contact via email
Distribution_Liability:
USGS assumes no liability for the use of this data set.

Metadata_Reference_Information:
Metadata_Date: 20050622
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Kerie Hitt
Contact_Organization: USGS NAWQA Nutrients National Synthesis
Contact_Address:
Address_Type: Mailing address
Address: 413 National Center
City: Reston
State_or_Province: VA
Postal_Code: 20192
Country: USA
Contact_Electronic_Mail_Address: kjhitt@usgs.gov
Contact_Voice_Telephone: 703 648-6854
Contact_Instructions: Contact via email
Metadata_Standard_Name: Content standards for digital geospatial metadata
Metadata_Standard_Version: FGDC-STD-001-1998

Generated by mp version 2.8.17 on Wed Jun 22 15:22:42 2005