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Geospatial Technology Section
Idaho Department of Water Resources
GIS
Geospatial Technology Section
322 East Front Street
Boise
Idaho
83720
gisinfo@idwr.idaho.gov
(208) 287-4800
(208) 287-6700
8:00 AM - 5:00 PM
Geospatial Technology Section
Idaho Department of Water Resources
GIS
Geospatial Technology Section
322 East Front Street
Boise
Idaho
83720
gisinfo@idwr.idaho.gov
(208) 287-4800
(208) 287-6700
8:00 AM - 5:00 PM
1986-01-01T00:00:00
1986-12-31T00:00:00
https://data-idwr.opendata.arcgis.com/pages/gis-data#IrrigatedLands
File Geodatabase Feature Class
Environment
Groundwater
Human
Hydrology
IDWR GIS Department
Irrigated Areas
Irrigation
Monitoring
Non-Irrigated
Regulatory
Semi-Irrigated
Surface Water
Water
Water Use
>
Eastern Snake Plain Aquifer, ESPA
Idaho, ID
>
Agriculture
Eastern Snake Plain Aquifer
ESPA
Environment
Farming
Groundwater
Human
Hydrology
IDWR GIS Department
Idaho
ID
Irrigated Areas
Irrigation
Monitoring
Non-Irrigated
Regulatory
Semi-Irrigated
Surface Water
Water
Water Use
Idaho Department of Water Resources (IDWR)
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Access and Use Constraint: The Idaho Department of Water Resources is making this data available as a public service. The Idaho Department of Water Resources strives to ensure that all technical data and other information made available to the public is accurate, complete and in conformance with the Idaho Public Records Act. Neither the Department of Water Resources nor the State of Idaho, however, assumes any legal responsibility for the accuracy or completeness of the information contained on this site. Persons using information from this site for official purposes, or other purposes, for which accuracy and completeness are required, are hereby notified that they should first verify the information with the public records or other primary sources from which the information was obtained.</SPAN></P><P><SPAN>Please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the most recent copy of both data and metadata. Acknowledgement of IDWR in any products derived from this dataset is appreciated.</SPAN></P><P><SPAN /></P><P><SPAN /></P></DIV></DIV></DIV>
Distribution Liability: The Idaho Department of Water Resources is making this data available as a public service. The Idaho Department of Water Resources strives to ensure that all technical data and other information made available to the public is accurate, complete and in conformance with the Idaho Public Records Act. Neither the Department of Water Resources nor the State of Idaho, however, assumes any legal responsibility for the accuracy or completeness of the information contained on this site. Persons using information from this site for official purposes, or other purposes, for which accuracy and completeness are required, are hereby notified that they should first verify the information with the public records or other primary sources from which the information was obtained.
Acknowledgment of IDWR would be appreciated in any work derived from this dataset.
1986 Irrigated Lands for the Eastern Snake Plain Aquifer (ESPA): Hand-Digitized Generated
Geospatial Technology Section
Idaho Department of Water Resources
GIS
Geospatial Technology Section
322 East Front Street
Boise
Idaho
83720
gisinfo@idwr.idaho.gov
(208) 287-4800
(208) 287-6700
8:00 AM - 5:00 PM
Geospatial Technology Section
2019-02-14T00:00:00
First Edition
First Series
This dataset was generated for use in the calculation of recharge and evapotranspiration in order to calibrate the Eastern Snake Plain Aquifer Hydrologic Model.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This layer depicts polygons representing land within the ESPA boundary classified as either "irrigated", "non-irrigated" or "semi-irrigated", where the semi-irrigated classification typically depicts residential land. </SPAN></P><P><SPAN>The creation of this dataset is a multi-year effort. The original line work that was used as a basis to create this dataset, is the Farm Service Agency’s (FSA) 2006 Common Land Unit (CLU) dataset, which is the most recent year the FSA distributed this data to the public. Project time constraints during the development of this dataset required acceptance of "less-than-perfectly-accurate" line work. In essence, line work deemed "close enough" to ground truth is acceptable for Eastern Snake Plain Aquifer (ESPA) modeling purposes. Field boundaries were then further refined using National Agriculture Imagery Program (NAIP) imagery, Digital Ortho Photo Quadrangle (DOQQ) imagery, or other high resolution imagery. </SPAN></P><P><SPAN>Attribute assignments for irrigation status (irrigated, non-irrigated, and semi-irrigated) are determined using available Landsat imagery as background reference. Landsat imagery is typically 30-meter (Landsat5) or 15-meter (Landsat7) resolution. National Agriculture Inventory Program (NAIP) imagery, Digital Ortho Photo Quadrangle (DOQQ) imagery, and other in-house, scanned aerial imagery is used for determining irrigation status and refining the polygon geometry. The interpretation and classification process is described in detail in the report, "2006 Irrigated Land Classification for the Eastern Snake Plain Aquifer" archived on the IDWR website: Legal Actions > Delivery Call Actions > SWC > Archived Matters > Technical Working Group Documents (https://idwr.idaho.gov/legal-actions/delivery-call-actions/SWC/archived-matters.html#twg-documents)</SPAN></P><P><SPAN>While data accuracy is highest inside the Eastern Snake Plain Aquifer Model boundary (ESPAM version 2), the layer does extend beyond the ESPAM2 boundary.</SPAN></P></DIV></DIV></DIV>
10000
Version 6.2 (Build 9200) ; Esri ArcGIS 10.9.1.28388
1
-115.311656
-110.952490
44.879291
41.957893
Ground condition/irrigation status for the 1986 growing season
1986-05-01T00:00:00
1986-11-30T00:00:00
The key attribute is "STATUS_1986". The interpretation and classification process is described in detail in the report titled "2006 Irrigated Land Classification for the Eastern Snake Plain Aquifer" archived on the IDWR website: Legal Actions > Delivery Call Actions > SWC > Archived Matters > Technical Working Group Documents (https://idwr.idaho.gov/legal-actions/delivery-call-actions/SWC/archived-matters.html#twg-documents)
Geospatial Technology Section
Idaho Department of Water Resources
GIS
Geospatial Technology Section
322 East Front Street
Boise
Idaho
83720
gisinfo@idwr.idaho.gov
(208) 287-4800
(208) 287-6700
8:00 AM - 5:00 PM
Geospatial Technology Section
Irrigation status is determined using 1986 Landsat imagery for the following dates:
Path39Row29: 06-06, 06-22, 07-24, 08-09, 09-10, 10-12 and
Path39Row30: 06-06, 06-22, 08-09, 09-10, 10-12 and
Path40Row29: 05-12, 06-13, 06-29, 07-31, 09-01, 09-17, 10-03 and
Path40Row30: 05-12, 05-28, 06-13, 06-29, 07-31, 09-01, 09-17, 10-03, 11-04.
The creation of this dataset is a multi-year effort. Original linework is from the Farm Service Agency's (FSA) Common Land Unit (CLU) dataset of or around 2006. FSA no longer distributes this data to the public. Project time constraints require acceptance of "less-than-perfectly-accurate" linework. In essence, line work deemed "close enough" to ground truth is acceptable for Eastern Snake Plain Aquifer (ESPA) modeling purposes. Attribute assignments for irrigation status (irrigated, non-irrigated, and semi-irrigated) are determined using available Landsat imagery as background reference. Landsat imagery is typically 30-meter (l5) resolution. National Agriculture Inventory Program (NAIP) imagery, Digital Ortho Photo Quadrangle (DOQQ) imagery, and other in-house, scanned aerial imagery is used for determining irrigation status and refining linework geometry. This dataset extends beyond the Eastern Snake Plain Aquifer Model boundary (ESPAM2). Line and attribute correctness is more accurate within ESPAM2 boundary. Landsat imagery available for the 1986 agricultural growing season was sparse due to cloudy conditions. Subsequently, some fields may be misclassified; however, every attempt was made by IDWR staff to minimize classification errors.
2014-07-08T00:00:00
Correct overlapping polygon topology errors *slightly overlapping polygons still exist, typically along pivot edges and/or roads
Check Geometry Tool
Repair Geometry Tool
Delete slivers < 1 m2
Eliminate slivers < 30 m2
2018-08-13T00:00:00
Positional Accuracy requirements are determined by its use in the ESPA modelling process which accepts "less-than-perfectly accurate" horizontal accuracy. However, given any time time constraints, efforts are made to refine positional accuracy based on NAIP and DOQQ imagery.
Attribute assignments for irrigation status (irrigated, non-irrigated, and semi-irrigated) are determined using available Landsat imagery as background reference. Landsat imagery is typically 30-meter (l5) or 15-meter (l7) resolution. National Agriculture Inventory Program (NAIP) imagery, Digital Ortho Photo Quadrangle (DOQQ) imagery, and other in-house, scanned aerial imagery is used for determining irrigation status and refining linework geometry. Hence, attribute accuracy is determined by the scale of those sources.
The data layer consists of polygon features attributed by GIS analysts based on visual interpretation of remote sensing and aerial imagery as well as supplemental information provided in the water rights database.
Concentrated animal feeding operations are identified using Landsat and NAIP imagery in the 2011 and later Irrigated Lands Data layers.
A topology check was performed to repair overlapping polygons and data gaps of consequential size.
The data layer consists of polygon features attributed by GIS analysts based on visual interpretation of remote sensing and aerial imagery as well as supplemental information provided in the water rights database.
Concentrated animal feeding operations are classified as semi-irrigated in the 2011 and later Irrigated Lands Data layers.
Overlapping polygons and data gaps of consequential size were minimized to the best of the analysts ability under existing time constraints.
While data accuracy and completeness is highest inside the Eastern Snake Plain Aquifer Model boundary (ESPAM version 2), the layer does extend beyond the ESPAM2 boundary and may or may not extend to the county line.
While data accuracy and completeness is highest inside the Eastern Snake Plain Aquifer Model boundary (ESPAM version 2), the layer does extend beyond the ESPAM2 boundary and may or may not extend to the county line.
Irrigated Lands Attribute Information
Feature Class
241700
OBJECTID
OBJECTID
OID
4
0
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
Shape
Geometry
0
0
0
Feature geometry.
Esri
Coordinates defining the features.
ACRES
Acres
Number of acres contained in the the polygon
IDWR
Double
8
0
0
STATUS_1986
Status 1986
Irrigation Status in 1986. Values are either "irrigated", "non-irrigated" or "semi-irrigated"
IDWR
String
25
0
0
irrigated
Area shows evidence of being irrigated
IDWR
non-irrigated
Area does not show evidence of being irrigated
IDWR
semi-irrigated
Residential area
IDWR
Shape_Length
Shape_Length
Double
8
0
0
Length of feature in internal units.
Esri
Positive real numbers that are automatically generated.
Shape_Area
Shape_Area
Double
8
0
0
Area of feature in internal units squared.
Esri
Positive real numbers that are automatically generated.
dataset
EPSG
9.5.1(10.8.0)
241700
Simple
FALSE
241700
TRUE
FALSE
20241115