Identification_Information: Citation: Citation_Information: Originator: Laura M. Norman , Miguel Villarreal, Cynthia S.A. Wallace, Claudia Zulema Gil Anaya, Israel Diaz Arcos, and Floyd Gray Publication_Date: Unknown Title: A High-Resolution Land-Use Map: Nogales, Sonora, Mexico Geospatial_Data_Presentation_Form: raster digital data Series_Information: Series_Name: Open-File Report Publication_Information: Publisher: USGS Online_Linkage: \landuse Description: Abstract: This is a 10-meter resolution land-use map derived from 2008 aerial photos and vector data for the Nogales, Sonora, Mexico part of the Ambos Nogales Watershed. Purpose: The results will be used for modeling impacts of detention basin construction and also as a part of a larger project to develop an "Early Warning Hazard System" for the region. This dataset was created to be used as input to the Automated Geospatial Watershed Assessment (AGWA) Tool, in order to predict runoff in this urbanizing Watershed. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 7-Oct-2008 Time_of_Day: unknown Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -111.036791 East_Bounding_Coordinate: -110.894884 North_Bounding_Coordinate: 31.332976 South_Bounding_Coordinate: 31.224569 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Land uset. Theme_Keyword: Land cover Place: Place_Keyword_Thesaurus: None Place_Keyword: Nogales, Sonora Place_Keyword: Nogales, Arizona Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: 2008 Access_Constraints: None Use_Constraints: There is no guarantee concerning the accuracy of the data. Users should be aware that temporal changes may have occurred since this data set was collected and that some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations. Acknowledgement of the originating agencies would be appreciated in products derived from these data. Any user who modifies the data is obligated to describe the types of modifications they perform. User specifically agrees not to misrepresent the data, nor to imply that changes made were approved or endorsed by the U.S. Geological Survey. Please refer to for the USGS disclaimer. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Laura M. Norman Contact_Organization: USGS Contact_Position: Research Scientist Contact_Address: Address_Type: mailing address Address: 520 N. Park Ave., Ste #102K City: Tucson State_or_Province: AZ Postal_Code: 85719 Country: USA Contact_Voice_Telephone: 5206705510 Contact_Electronic_Mail_Address: lnorman@usgs.gov Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.0.1770 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The Overall Kappa (K^) Statistics was .8961--the classification process is avoiding 89.61 percent of the errors that a completely random classification generates and the overall classification accuracy is 91.43percent . The area is dominated by both mixed forest (trees) and shrubland around bare areas of transportation and urban area, which is represented in our map. Logical_Consistency_Report: The accuracy of the dataset is based on the software's ability to detect land use signatures and the analysts's interpretation of features on the ground. Additional inaccuracy could occur in the original image it was processed from, because even slight measurement inaccuracies of the ground features selected for ortho control can affect the final accuracy. Completeness_Report: Data are limited to areas included in Nogales, Sonora, Mexico subWatershed of the Ambos Nogales Watershed, as defined by a minimum bounding rectangle around the subWatershed. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: National Geospatial-Intelligence Agency (NGA) Publication_Date: 2009 Title: Border Imagery Geospatial_Data_Presentation_Form: raster digital data Type_of_Source_Media: digital tape media Source_Information: Source_Citation: Citation_Information: Originator: Instituto Municipal de Investigaci¢n y Planeaci¢n Publication_Date: Unpublished Material Title: Nogales Land Use Cover Geospatial_Data_Presentation_Form: vector digital data Type_of_Source_Media: electronic mail system Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2009 Source_Currentness_Reference: ground condition Source_Information: Source_Citation: Citation_Information: Originator: The Mexican Insituto Nacional de Estadistica, Geografia, e Informatica (INEGI) Publication_Date: Unknown Title: INEGI Transportation in Nogales, Sonora Geospatial_Data_Presentation_Form: vector digital data Online_Linkage: www.inegi.gob.mx Type_of_Source_Media: electronic mail system Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1995 Source_Currentness_Reference: publication date Source_Contribution: The Mexican Insituto Nacional de Estadistica, Geografia, e Informatica is the main agency in Mexico that provides mapping and census data for the country. This 1:250,000-scale dataset provides medium resolution detail of the transportation road network of the country Process_Step: Process_Description: Each TIFF was reclassified based on the RGB composites. Those with values 0 - 50, were classified as "43: Mixed Forest", 50-100, were classified as "51: Shrubland", 100-255, were classified as "31: Bare Rock/Sand/Clay". These raster datasets were mosaiced into a new raster dataset and resampled to a 10-meter resolution using the nearest neighbor assignment Process_Date: 2010 Process_Step: Process_Description: The transportation vector data layer of the Municipal Institute of Research and Planning was merged with linear transportation data (roads, streets, highways, and railroad) from INEGI to develop a raster grid represention with the class value of "23: Commercial/Industrial/Transportation" which was overlain onto the land use map Process_Date: 2010 Process_Step: Process_Description: Land-use vector data was then substituted in the urban area having been developed by Municipal Institute of Research and Planning for 2009. Specifically, the population density and services, trade, and industrial locations as specified with the class "31: Bare Rock/Sand/Clay" were substituted with either "21: Low Intensity Residential", "22: High Intensity residential", or "23: Commercial/Industrial/Transportation", according to the polygonal reference data it corresponded with. Process_Date: 2010 Process_Step: Process_Description: An accuracy assessment was performed on the final product, which revealed an overall classification accuracy of 91.43percent Process_Date: 2010 Process_Step: Process_Description: Upon manual inspection, we realized some very green looking pond features that had not been recognized by the classification procedure. These were digitized into a "water" shapefile to represent these locations, converted to a raster dataset, and overlain into the landuse map in the class "11: Open Water". Process_Date: 2010 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Row_Count: 1201 Column_Count: 1350 Vertical_Count: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 12 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -111.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 500000.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: row and column Coordinate_Representation: Abscissa_Resolution: 10.000000 Ordinate_Resolution: 10.000000 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257222 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: landuse.vat Attribute: Attribute_Label: Rowid Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: VALUE Attribute_Definition: Land Cover Class Attribute_Definition_Source: The National Land Cover Dataset (NLCD 1992) classification schema was employed to classify the imagery Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NLCD 1992 Classification System Enumerated_Domain_Value_Definition: Classes used in Nogales, Sonora subWatershed Enumerated_Domain_Value_Definition_Source: (http://www.epa.gov/mrlc/definitions.html#1992). Attribute: Attribute_Label: COUNT Attribute_Definition: # of times this value occurs Attribute_Definition_Source: ESRI Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Laura Norman Contact_Position: Research Physical Scientist Contact_Voice_Telephone: 5206705510 Hours_of_Service: 8am-5pm, M-F Resource_Description: Downloadable Data Distribution_Liability: Although these data have been processed successfully on a computer system at the USGS, no warranty expressed or implied is made by the USGS regarding the use of the data on any other system, nor does the act of distribution constitute any such warranty. Data may have been compiled from various outside sources. Spatial information may not meet National Map Accuracy Standards. This information may be updated without notification. The USGS shall not be liable for any activity involving these data, installation, fitness of the data for a particular purpose, its use, or analyses results. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ERDAS Format_Version_Number: GRID File_Decompression_Technique: no compression applied Transfer_Size: 1.432 Fees: None Ordering_Instructions: Data are available online at no charge via Internet download. Acknowledgement of the U.S. Geological Survey would be appreciated in products derived from these data. Metadata_Reference_Information: Metadata_Date: 20100513 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS Contact_Person: Laura M. Norman Contact_Position: Researrch Physical Scientist Contact_Address: Address_Type: mailing address Address: 520 N. Park Ave., Ste 102K City: Tucson State_or_Province: AZ Postal_Code: 85719 Country: USA Contact_Voice_Telephone: 520-670-5510 Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile