U.S. Bureau of Reclamation 2009 NA vector digital data Sacramento CA U.S. Bureau of Reclamation Edition 1 Contact: Barbara Simpson U.S. Bureau of Reclamation Division of Enivronmental Affairs Mid-Pacific Region bsimpson@usbr.gov \\ibr2mprgis002\gis_proj01\CVHM2005\Work\12_Master_Data_CVHM\CVHMpublishver2.gdb Land cover and land use information for the Central Valley, California. This covers the years 2000 and 2005. This represents a subset of data for the Central Valley. This subset represents the set of polygons reviewed or edited in 2000 or 2005. This is the base set of information captured for that time period. Land cover and land use information for the Central Valley, California. This covers the years 2000 and 2005. There are several related feature classes. A. LANDCOVER2K2005Review -The subset consists of any source polygons that have editied values for land cover in 2000, land cover in 2005, or land use identified in 2005. It represents one of the final steps in data verification. for 2005 land cover values. Data represents a simplified set of polygons from the separate processing areas. Spatially they can link back to the original polygons, but not by any polygon ID. It was developed with source data from: 1. The California Department of Conservation Farmland Mapping Program for the year 2004. 2. Crop information from the U.S.D.A. Farm Services Agency for 2006 where available. 3. Hydrologic mapping or water boundaries from USGS National Hydrography Dataset (NHD). 4. U.S. Census information for 2000 with updates in 200x. Review of the dataset representing review and edits for 2000 and 2005 indicated a substantial set of overlapping polygons. This base dataset contains polygons either reviewed and updated for 2000 or 2005 or both. The overlap presented a significant problem for further processing and reporting. The resulting feature class contained 1,834,065 polygons. Process Steps: 1. Feature class LANDCOVER2K2005Review converted to ArcINFO double precision coverage REVIEWPLANE3 2. REVIEWPLANE3 cleaned with new labels to coverage REVIEWPLANE4 and codes checked. 3. Coverage data with void polygons loaded into ReviewDataVer6 feature class. This new feature class contains 1,881,748 polygons. There are 47,683 polygons in this set representing void polygons. 4. Feature class ReviewDataVer6 was then dissolved to produce RevDataDISver7 on two fields (LC2000UPD and LC2005UPD). This produced multipart features. 5. Features were then split into single part features to produce RevDataDisSPver8. 6. The resulting data was then loaded into ReviewDataVer9 to remove void polygons. There are 155, 038 polygons with codes for 2000 and 2005. 7. For the areas not mapped or reviewed for 2000 or 2005, the base data was dissolved to produce a simplified dataset to use as an erase polygon against the original 2000 data. LC2000original was erased by MappedArea2005 to produce lc2kunmapped. 8. The two different sets were then loaded into Combined2005 for the full area and codes were populated. This data represents a merging of spectral polygons from 51 separate processing areas covering the area of interest. Description of the full process is contained in separate documents. Topic: Summary of final change and revision of edits Date: July 21, 2009 By: Dave Hansen, Chris Curlis, and Barbara Simpson 1. A subset of polygons representing review and edits for 2005, 2000, and urban land use were extracted from each of the processing areas. These were reviewed to verify or correct change between 2000 and 2005. Topology was then checked to remove any overlapping polygons. This feature class is currently Landcover2005_2000_cvhm 2. On review, riparian areas identified in 2000 based on detailed mapping of riparian habitat had been inadvertently recoded to other woodland categories. This may also affect valley oak woodland. They represent confusion between classes by the reviewer. Fin2kz values of interest are: " 44 - Valley Foothill Riparian " Possibly 42 - Blue Oak Woodland " Possibly 43 - Valley Oak Woodland Riparian calls from 2000 will be extracted from the individual processing areas. These will be compared to any mixed forest calls for 2005 and recoded to riparian. This will represent a subset. Confusion for 2005 appears to be 410 - Deciduous Forest - Undifferentiated, 510 - Evergreen Forest - Undifferentiated, 430 - Valley Oak Woodland Woodland categories that were originally riparian for 2000 will have those polygons reviewed with updates made to ReviewEdits2005. Change will be in fields LC2000update and LC2005update. Processing methodology is described under the Data Quality section. 2000 unknown February 2007 2005 unknown ground condition Complete Unknown -122.542509 -118.187288 40.199531 34.782722 Columbia Encyclopedia, Sixth Edition - http://www.bartleby.com/65/ Land cover Land use vegetation Change detection San Francisco Bay Central Valley California None If used, please indicate that the database source as specified in the Data Set Credit - U.S. Bureau of Reclamation, Mid-Pacific Region U.S. Bureau of Reclamation, Mid-Pacific Region, Division of Environamental Affairs Barbara Simpson Soil Scientist / GIS Specialist mailing and physical address

2800 Cottage Way, MP 150

Sacramento CA 95825 USA (916) 978-5031 (916) 978-5055 bsimpson@usbr.gov 9:00 AM - 3:00 PM M-F Email your request to the above email address. CREATE IN ARCMAP, EXPORT AS JPEG JPEG Contact: Barbara Simpson Mid-Pacific Region USBR 2800 Cottage Way Sacramento CA 95825-1898 dsimpson@usbr.gov 916-978-5031 None None None Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.0.1770 Attribute accuracy depends on the areas reviewed. There has been a multi step process in this review. 1. Spectral change areas and adjacent areas were reivewed with 2005 1 meter NAIP imagery and 2000 imagery to identify land cvoer for 2005 and 2000. This included analysis for urban and rural residential areas. 2. For each processing area change was identified between the values carried for 2000 and 2005. These values were then reviewed for consistency between values for the two years. Spurious change was eliminated for one or both years. 3. All processing areas were combined where values had been edited or reviewed for 2000 or 2005 or for landuse. Any polygons that did not have an edited value for both years were again reviewed to verify change. 4. For the overall data, change between the two years was again evaluated and verified. 2. See accuracy report. Data is reviewed for logical consistency against internally maintained databases. Reviews consist of verifying differences in land cover mapping in 2000 compared to 2005 in stages. The initial stage was on a processing area basis. There are approximately 51 separate processing areas covering the area of this dataset. After this review in 2008 and early 2009, the data was brought together and reviewed again to verify change between 2000 and 2005. This data represents spectral polygons where land cover was identified for either 2000, or 2005. It also includes spectral polygons where land use was identified for 2005. It does not cover the full area of interest. All other spectral polygons for the area of interest carry land cover values for 2000. Positional accuracy for this data depends on the 15 meter cell size used to generate the spectral polygons. There will be offsets from the 1 meter NAIP imagery used for evaluation. 30 meters Due to raster processing with 15 meter resolution for the spectral polygons, major features are expected to be within 30 meters. NA USBR - Mid-Pacific Region Contact: Barbara Simpson USBR bsimpson@usbr.gov 916-978-5031 See data set credit Digital files USBR - CVHM Program Varies Review of the dataset representing review and edits for 2000 and 2005 indicated a substantial set of overlapping polygons. This base dataset contains polygons either reviewed and updated for 2000 or 2005 or both. The overlap presented a significant problem for further processing and reporting. The resulting feature class contained 1,834,065 polygons. Process Steps: 1. Feature class LANDCOVER2K2005Review converted to ArcINFO double precision coverage REVIEWPLANE3 2. REVIEWPLANE3 cleaned with new labels to coverage REVIEWPLANE4 and codes checked. 3. Coverage data with void polygons loaded into ReviewDataVer6 feature class. This new feature class contains 1,881,748 polygons. There are 47,683 polygons in this set representing void polygons. 4. Feature class ReviewDataVer6 was then dissolved to produce RevDataDISver7 on two fields (LC2000UPD and LC2005UPD). This produced multipart features. 5. Features were then split into single part features to produce RevDataDisSPver8. 6. The resulting data was then loaded into ReviewDataVer9 to remove void polygons. There are 155, 038 polygons with codes for 2000 and 2005. 7. For the areas not mapped or reviewed for 2000 or 2005, the base data was dissolved to produce a simplified dataset to use as an erase polygon against the original 2000 data. LC2000original was erased by MappedArea2005 to produce lc2kunmapped. 8. The two different sets were then loaded into Combined2005 for the full area and codes were populated. Varies Metadata imported. C:\DOCUME~1\dhansen\LOCALS~1\Temp\xml5D.tmp Metadata imported. P:\CVHM2005\Work\9_LandUse\basefilegeoddb.xml 20090630 06533900 Metadata imported. P:\CVHM2005\Work\10_BaseRasters\metadataCVHM_overallver1.xml 20090731 12313700 Metadata imported. P:\CVHM2005\Work\10_BaseRasters\metadataCVHM_overallver2full.xml 20090731 12554800 Dataset copied. P:\CVHM2005\Work\10_BaseRasters\CVHMpublishver2.gdb 20090910 09322900 Metadata imported. P:\CVHM2005\Work\12_Master_Data_CVHM\metadata_revision_20090917.xml 20090917 13560700 NA Vector G-polygon 1805725 Point 4 GT-polygon composed of chains 829 Point 8 Label point 259 Label point 415 Label point 982 Label point 982 Label point 6 Label point 982 Label point 1608 Label point 982 Label point 0 Composite object 46 Composite object 2 Composite object 5 Composite object 4 Composite object 7 Composite object 4 Composite object 2 Composite object 1 Composite object 1 Composite object 2 Composite object 1 Composite object 3 Composite object 1 Composite object 1 Composite object 3 Composite object 23 Composite object 21 Composite object 22 Composite object 3 Composite object 2 Composite object 1 Composite object 2 Composite object 2 Composite object 6 Composite object 2 Composite object 7 Composite object 1 Composite object 26 Composite object 14 Composite object 2 Composite object 1 Universal Transverse Mercator 10 0.999600 -123.000000 0.000000 500000.000000 0.000000 coordinate pair 0.000100 0.000100 meters North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 0.000100 Explicit elevation coordinate included with horizontal coordinates ReviewEditVer2 OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. ProcArea Processing area USBR LC2000update Land cover for 2000 as corrected value USBR LC2005update Land cover for 2005 as corrected value USBR LC2000gen General land use for 2000 USBR LC2005gen General land cover for 2005 USBR LCChangeGen Change interger code USBR 1 No Change between 2000 and 2005 2 Change between 2000 and 2005 From2kto2005 Change identified USBR VerifyID Unique value based on source polygon USBR SHAPE_Length Length of feature in internal units. ESRI Positive real numbers that are automatically generated. SHAPE_Area Area of feature in internal units squared. ESRI Positive real numbers that are automatically generated. The following fields are being carried at this time. 1. LC2000UPD or LC2000update - integer with domain for landcover class - Call for landcover in 2000 for reviewed and edited data 2. LC2005UPD or LC2005update - integer with domain for landcover class - Call for landcover for 2005 for reviewed and edited values 3. LC2000GEN - Short integer with domain for general landcover class - Final call of general landcover for 2000 - based on geodatabase table for either edited or original values 4. LC2005GEN - Short integer with domain for general landcover class - Final call of general landcover for 2005 for either edited or original 2000 values 5. CHANGE or LCChangeGen - Short integer to identify difference between general change for 2000 and 2005 Binary code of 1 - No change or 2 - Change 6. FROM2k2005 or From2kto2005 - Text field to identify From 2000 to 2005 for general change 7. ACREA1 - Calculated field for acres based on shape_area field 8. LC2000ORG - land cover for 2000 for any polygons not coded in review and edits for 2000 and 2005 9. LC2000CMB - Full coding for 2000 based on LC2005UPD or LC2000ORG 10. LC2005CMB - Full coding for 2005 based on LC2005UPD or LC2000ORG *************************************************** This overall subset where codes were assigned for 2005, changed for 2000, or with a landuse category is ReviewEdits2005 under LandCover2005.gdb. A subset of those polygons with a land use is coded in LandUse2005.gdb/LandUse3005DS/landuse_dissolve. This should be used for further analysis. Other common fields for related feature classes are: 11. ProcArea - short integer - processing area number. There are 51 processing areas covering the CVHM area. 12. LandUse - Land use coding captured from urban, rural residential, other sources, or coded interactively. 13. VerifyID - Long integer o ReviewEditVer2 - original values from ReviewEdit2005 o ChangeAllVer4 - Values 2,000,000 + FID o RiparianReviewVer2 - Values 3,000,000 + original verifyid. Data obtained from an outside source - see web site provided for distribution. This database was obtained from an outside source. That source should be contacted for this data and credit for this database should be provided to that source. The U.S. Bureau of Reclamation assumes no liability in the application and use of this data. This data was obtained for general planning purposes, it is not intended to be used as a land survey or representation of land for conveyance or tax purposes. Use of this data at scales which are more detailed than the source scale is not recommended. This data has not been verified in the field by U.S. Bureau of Reclamation personnel. Should problems be found in this database please notify the contact provided. NOT FOR DISTRIBUTION WITHOUT NOTICE TO USBR ARCE ArcInfo export format no compression applied 0.362 \\PELTZ\c\gis\hydrography\wdfed24v10 Local area network Contact original source. Contact original source. Contact original source. Call or email Distributor None. 20090917 20080226 David Hansen U.S. Bureau of Reclamation, Mid-Pacific Region Geospatial Data Administrator mailing address

2800 Cottage Way MP400

Sacramento CA 95825 USA 916-978-5268 926-978-5290 dhansen@mp.usbr.gov 8:00 AM - 5:00 PM Call or email FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time None If used, please indicate that the data source was the U.S. Bureau of Reclamation, Mid-Pacific Region, MPGIS Service Center. ESRI Metadata Profile ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile