Identification_Information: Citation: Citation_Information: Originator: Hitt, Kerie J. Publication_Date: 200702 Title: NAWQA GIS ancillary data: 1992 and 1997 NRI characteristics (waste management, irrigation canal or lateral, conservation tillage, contour farming, irrigation ditch and canal, irrigation pipeline, irrigation tailwater recovery, irrigation water management, irrigation land leveling, terrace, subsurface drain, surface drainage, irrigation source, and irrigation type) for ground water study areas (Land Use Studies and Subunit Surveys) Online_Linkage: Description: Abstract: This data set consists of 1992 and 1997 NRI data on selected conservation practices, irrigation sources, and irrigation types for NAWQA ground water study areas (Land Use Studies and Subunit Surveys). NRI characteristics were prepared by Michael Wieczorek. The NRI was conducted every 5 years from 1977 to 1997, but is now conducted annually. The NRI web site states: !NRI data for four points in time (1982, 1987, 1992, and 1997) !are completely comparable and consistent from year to year so !that the data reflect true trends and temporal analyses can be !made. When making comparisons with 1982, 1987, and/or 1992 data, !the 1997 NRI database must be used. Originally released 1982, !1987, and 1992 data may not be consistent with the new !database. The historical 1982, 1987, and 1992 data were updated !to reflect 1997 technical criteria and protocols as part of the !1997 NRI inventory process. The 1997 NRI database should be !considered self-contained in that respect. The 1992 dataset is !no longer being supported. The following NRI elements were compiled for NAWQA: !NRI Data !Code Description Availability !--------------------------------------------------------------- ! CONSERVATION PRACTICES !312 Waste management system ** 92 only ** !320 Irrigation, canal or lateral ** 92 only ** !329 Conservation tillage system ** 92 only ** !330 Contour Farming 92, 97 !428 Irrigation water conveyance, ditch and canal ** 92 only ** !430 Irrigation water conveyance, pipeline ** 92 only ** !447 Irrigation system, tailwater recovery 92, 97 !449 Irrigation water management ** 92 only ** !464 Irrigation land leveling ** 92 only ** !600 Terrace 92, 97 !606 Subsurface drain ** 92 only ** !607 Surface drainage, field ditch 92, 97 !608 Surface drainage, main or lateral 92, 97 ! ! IRRIGATION SOURCES ! !0 No irrigation source 92, 97 !1 Well 92, 97 !2 Pond, lake, or reservoir 92, 97 !3 Stream, ditch, or canal 92, 97 !4 Lagoon or other waste water 92, 97 ! (not including tailwater recovery) !5 Combination 92, 97 ! ! IRRIGATION TYPES !0 Not irrigated 92, 97 !1 Gravity irrigated 92, 97 !2 Pressure irrigated 92, 97 !3 Gravity and pressure irrigated 92, 97 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: 1992 Single_Date/Time: Calendar_Date: 1997 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. 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: NAWQA Theme_Keyword: National Water Quality Assessment Theme_Keyword: Ground water Theme_Keyword: Water quality Theme_Keyword: NRI Theme_Keyword: National Resources Inventory Theme_Keyword: Conservation practice Theme_Keyword: Animal waste management Theme_Keyword: Irrigation, canal or lateral Theme_Keyword: Conservation tillage system Theme_Keyword: Contour Farming Theme_Keyword: Irrigation water conveyance, ditch and canal Theme_Keyword: Irrigation water conveyance, pipeline Theme_Keyword: Irrigation system, tailwater recovery Theme_Keyword: Irrigation water management Theme_Keyword: Irrigation land leveling Theme_Keyword: Terrace Theme_Keyword: Subsurface drain Theme_Keyword: Surface drainage, field ditch Theme_Keyword: Surface drainage, main or lateral Theme_Keyword: Well irrigation source Theme_Keyword: Pond, lake, or reservoir irrigation source Theme_Keyword: Stream, ditch, or canal irrigation source Theme_Keyword: Lagoon or other waste water irrigation source Theme_Keyword: Gravity irrigation Theme_Keyword: Pressure irrigation Theme_Keyword: Gravity and pressure irrigation Theme_Keyword: Artificial drainage 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: Hitt, K.J. Publication_Date: 200304 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. Source_Information: Source_Citation: Citation_Information: Originator: Wieczorek, M. Publication_Date: 200404 Title: 1992 and 1997 Natural Resources Inventory acres by county Online_Linkage: Source_Scale_Denominator: 500,000 Type_of_Source_Media: On line Source_Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 1992 Single_Date/Time: Calendar_Date: 1997 Source_Currentness_Reference: Publication date Source_Citation_Abbreviation: NRI grids Source_Contribution: Tables of data showing acres of each NRI practice by county. We are assuming NRI is the "truth" for practice and enhanced National Land Cover Data (NLCDE) is the "truth" for land use. The county coefficient for NRI practice multiplied by the area of NLCDE land use in the county gives the total area of that practice in the county. 1. Calculate a county coefficient for each NRI practice: !total area of NRI practice on total area of NRI !agricultural land (cropland, divided agricultural land !pasture/hay, and orchards) by in the county !in the county 2. Calculate area of NLCDE agricultural land in the county using 30-m NLCDE grids. 3. Calculate the area of NRI practice apportioned to NLCDE land use in the county: !NRI coefficient * NLCDE agricultural land area !for county for county Source_Information: Source_Citation: Citation_Information: Originator: Natural Resources Conservation Service Publication_Date: 2001 Title: 1997 National Resources Inventory Online_Linkage: Source_Scale_Denominator: 500,000 Type_of_Source_Media: On line Source_Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 1992 Single_Date/Time: Calendar_Date: 1997 Source_Currentness_Reference: Publication date Source_Citation_Abbreviation: 1997 NRI Source_Contribution: This is the source of the data on NRI practices that is aggregated by county and then apportioned to NLCDE land use. The 1997 NRI contains 1997 data as well as historical data for 1982, 1987, and 1992 that were updated to reflect 1997 technical criteria. Process_Step: Process_Date: 20040601 Process_Description: Ground water study boundaries are gridded at 30 meters and snapped to the NLCDE. Data processing occurs at 30 meters resolution. The sum of each NRI variable was determined for the study area by running the GRID command, "zonalstats" with the sum option. Processing routines are from the NAWQA area characterization toolbox. The basic procedure is to calculate a sum of the area of each NRI variable in the ground water study. The area of each NRI variable in the ground water study is calculated by multiplying the total area of the NRI variable in a county by the fraction of all agricultural land in that county in the ground water study and summing the areas for each county in the ground water study. Here are the weighting factors for pasture/hay and row crops for the ground water study around ucollusrc1b_trg, which contains one county: !GWBNDC1_FIPSLU.AWT ! !FIPS NLCDE AREAKM2 ALLAG6 ALLAG6_KM2 !08051 81 0.95400000 0.00616813 154.66590000 !08051 82 0.07290000 0.00047134 154.66590000 ALLAG6 is the fraction of the total ag land in the county that is in the ground water study. !(ALLAG6 = AREAKM2 / ALLAG6_KM2) According to the NRI table, county 08051 has a total of 249.2890 km2 of IS03 (irrigation source = stream, ditch, or canal). !NRI92-CPRACSKM2.DAT ! !FIPS IS03 KM2 !08051 249.28904000 The total area of NRI IS03 in the ground water study is calculated as fraction of total agland in the county in the ground water study * total area of NRI practice in the county (applies only to agland categories in ground water study): !ALLAG6 * IS03 for NLCDE 81 + ALLAG6 * IS03 for NLCDE 82 = !0.00616813 * 249.28904 + 0.00047134 * 249.28904 = !1.5376145 + 0.1174899 = !1.6551 km2 of IS03 in ground water study A limitation of this procedure may occur when the amount of county ag land from NRI differs substantially from the amount of county ag land from NLCDE. If NRI ag land is more than NLCDE ag land, sometimes calculated areas of NRI practices in a ground water study are more than the total NLCDE ag land calculated in the ground water study. In fact, sometimes the calculated areas of NRI practices in a ground water study are more than the entire area of the ground water study. For example, calculated area of 1992 NRI IT01 exceeds 114.7 km2 total area for ground water study rioglusag1_trg: !TOTAL AREA OF !rioglusag1_trg IT01 ! 114.734 km2 118.9 km2 County/NLCDE weighting factors for the ground water study are: !County NLCDE AREAKM2 ALLAG6 ALLAG6_KM2 !35013 11 1.80900000 0.00000000 0.00000000 !35013 21 0.07020000 0.00000000 0.00000000 !35013 23 0.79740000 0.00000000 0.00000000 !35013 31 0.25920000 0.00000000 0.00000000 !35013 41 0.01890000 0.00000000 0.00000000 !35013 51 20.09880000 0.00000000 0.00000000 !35013 61 1.59750000 0.00593691 269.07930000 ** !35013 62 1.12230000 0.00417089 269.07930000 !35013 71 21.70620000 0.00000000 0.00000000 !35013 81 8.39160000 0.03118634 269.07930000 !35013 82 29.89440000 0.11109880 269.07930000 !35013 84 0.03060000 0.00011372 269.07930000 !35013 85 0.03060000 0.00000000 0.00000000 !35051 11 0.55350000 0.00000000 0.00000000 !35051 21 0.00270000 0.00000000 0.00000000 !35051 23 0.16650000 0.00000000 0.00000000 !35051 31 0.01260000 0.00000000 0.00000000 !35051 41 0.00360000 0.00000000 0.00000000 !35051 51 8.53020000 0.00000000 0.00000000 !35051 62 0.33570000 0.01343031 24.99570000 *** !35051 71 8.39970000 0.00000000 0.00000000 !35051 81 1.84410000 0.07377668 24.99570000 !35051 82 8.98020000 0.35926980 24.99570000 !35051 84 0.07380000 0.00295251 24.99570000 !35051 85 0.00450000 0.00000000 0.00000000 ! __________ ! 114.7 km2 total area of ground water study The NRI areas calculated for counties 35013 and 35051 show: !FIPS IT01 km2 !35013 644.67117000 ** --- 644 km2 of NRI practice exceeds ! 269 km2 of NLCDE ag land in ! gw study area from county 35013 !35051 45.72997000 *** --- 46 km2 of NRI practice exceeds ! 25 km2 of NLCDE ag land in ! gw study area from county 35051 The area of IT01 in the ground water study is calculated as the sum of ALLAG6 * IT01 for each ag land class in each county: !FIPS NLCDE AREAKM2 ALLAG6 * IT01 !35013 61 1.5975 0.00593691 644.67 = 3.82735536 !35013 62 1.1223 0.00417089 644.67 = 2.68885254 !35013 81 8.3916 0.03118634 644.67 = 20.10493430 !35013 82 29.8944 0.11109880 644.67 = 71.62219338 !35013 84 0.0306 0.00011372 644.67 = 0.07331271 !35051 62 0.3357 0.01343031 45.73 = 0.61416767 !35051 81 1.8441 0.07377668 45.73 = 3.37380536 !35051 82 8.9802 0.35926980 45.73 = 16.42939718 !35051 84 0.0738 0.00295251 45.73 = 0.13501810 ! ________ ______________ ! 52.3 km2 118.9 km2 of IT01 in gw study ! of ag land (but NLCDE shows only 52.3 km2 of ! in gw study ag land in the ground water study and ! total area of ground water study ! is only 114.7 km2) Data users must adjust for this. One strategy is to assume that all of the ag land in a ground water study is associated with an NRI practice if the calculated area of the NRI practice in the ground water study exceeds the calculated NLCDE ag land for the ground water study. Processing routines are from the NAWQA area characterization toolbox. (Example below.) !&r weightstats gwbndc1_fipslu.awt d:/ancill/nri/nri92-cpracskm2.dat gwbndc1_nri92.dat sum areaid allag6 countyg fipsb ~ ! is01 is02 is03 is04 is05 it01 it02 it03 ~ ! cp312 cp320 cp329 cp330 cp428 cp430 cp447 cp449 cp464 cp600 cp606 cp607 cp608 Process_Step: Process_Date: 20040722 Process_Description: Received new boundary for cycle 1 SANJLUSOR1A_TRG, SANJLUSOR1B_TRG. Recalculated NRI data for these areas. Process_Step: Process_Date: 20041020 Process_Description: Updated metadata to clarify the value of zero is not missing data, but is valid. Missing data is indicated by -9999. None of the ground water study areas should have missing values, but some will have zero values. 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. Process_Step: Process_Date: 20061107 Process_Description: Reprocessed data using September 2005 version of NLCDE land use and counties and added new LUSs and MASs acadsus3, eiwasus3, linjlusrc1, lirblusrc1, pugtlusrs1, sacrlusrc1, trinsus4, usnkluscr2, usnkluscr3. 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. Each NRI variable represents the sum of the area (km2) for that NRI practice for the study area. Values of zero are possible. No missing values should occur because if an NRI practice does not occur in a county, the area assigned to the practice is zero. The fields for 1992 NRI characteristics are: !AREAID Ground water boundary coverage !SUID NAWQA study unit !SUCODE NAWQA study unit/network code ! ! IRRIGATION SOURCE !IS01 Well (KM2) !IS02 Pond, lake, or reservoir (KM2) !IS03 Stream, ditch, or canal (KM2) !IS04 Lagoon or other waste water (KM2) !IS05 Combination (KM2) ! ! IRRIGATION TYPE !IT01 Gravity irrigated (KM2) !IT02 Pressure irrigated (KM2) !IT03 Gravity and pressure irrigated (KM2) ! ! CONSERVATION PRACTICE !CP312 Waste management system (KM2) !CP320 Irrigation, canal or lateral (KM2) !CP329 Conservation tillage system (KM2) !CP330 Contour Farming (KM2) !CP428 Irrigation water conveyance, ditch and canal (KM2) !CP430 Irrigation water conveyance, pipeline (KM2) !CP447 Irrigation system, tailwater recovery (KM2) !CP449 Irrigation water management (KM2) !CP464 Irrigation land leveling (KM2) !CP600 Terrace (KM2) !CP606 Subsurface drain (KM2) !CP607 Surface drainage, field ditch (KM2) !CP608 Surface drainage, main or lateral (KM2) The fields for 1997 NRI characteristics are: !AREAID NAWQA station id !IS01 Well (KM2) !IS02 Pond, lake, or reservoir (KM2) !IS03 Stream, ditch, or canal (KM2) !IS04 Lagoon or other waste water (KM2) !IS05 Combination (KM2) !IT01 Gravity irrigated (KM2) !IT02 Pressure irrigated (KM2) !IT03 Gravity and pressure irrigated (KM2) !CP330 Contour Farming (KM2) !CP447 Irrigation system, tailwater recovery (KM2) !CP600 Terrace (KM2) !CP607 Surface drainage, field ditch (KM2) !CP608 Surface drainage, main or lateral (KM2) 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: 200702 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