summit_wetlnds

summit_wetlnds vector digital data withheld summit_wetlnds 4/29/2010 This data set provides a set of wetland polygons delineated by aerial photograph interpretation. This data set is an amalgamation of three original data sets: 1) Ward; 2) Whitehorse; and USFS White River National Forest. Original data were obtained from the Summit County Mapping Department, either directly or via Science Applications Internation Corporation (SAIC). Each survey differed in its extent and accuracy. The accuracy of the surveys were ranked as 1) Ward, 2) Whitehorse, 3) USFS -- from highest accuracy to lowest. Aerial photography was confirmed by limited ground truthing by SAIC. When wetland polygons overlap occurred, the polygon utilized in this mapping was generally selected from the most accurate aerial photo survey. Where available, aerial photographs were evaluated to confirm polygon selection. In some cases, where photography was available, overlapping polygons from different surveys were retained to cover an entire apparent wetland in a location. In such cases, polygons were clipped so as not to overlap. In some cases additional wetland polygons were added to the survey based on continuing aerial photograph evaluations. Data field definitions are provided in the "supplemental information" section below. Data fields retained in the attribute table were obtained from the three surveys or derrived after merging. Since the individual surveys used different field definitions and complied different types of data, many fields do not have data entries. This data set was complied for the purpose of wetland research and management. It does NOT provide jurisdictional wetland boundaries, and in fact, many of the wetlands herein delineated may not be regulated by federal agencies. As many as 16 data fields may be included within this data theme. The actual number may be reduced according to the user's version. 1) USFS_WETLN - identification number for those wetlands included within the White River National Forest Survey. 2) QUADNAME - USGS quadrangle in which the wetland occurs. 3) RIPZONE - Riparian zone attribute codes. USFS survey. Code key as follows: S - Stream - Riparian area, little to no floodplain SF - Stream - Riparian area with floodplain present SA - Stream - Alpine Riparian area, little to no floodplain SFA - Stream - Alpine Riparian area, with floodplain present M - Meadow - Synonymous with wet meadow, herbaceous wetlands MA - Meadow - Alpine, Synonymous with wet meadow,herbaceous wetlands Ws - Wetland/Shrub - greater than 20 percent or more shrub canopy WSA - Wetland shrub-Alpine L - Lake/Reservoir LA - Lake-Alpine P - Pond - small water body less than 5 ac in size PA - Pond-Alpine, small water body less than 5 ac in size SE - Seeps and springs G - Gully SB - Snowhed & snow community - permanent and late summer snowfield areas 4) & 5) Domtype and Subdomty1 -- dominant and sub dominant vegetation in wetland. From USFS survey. Code key follows. sf - Englemann spruce/Subalpine fir lp - Lodgepole pine bs - Blue spruce df - Douglas fir aa - Aspen cw - Cottonwood wi - willow sa - sagebrush ms - mixed shrubs sawt - sage/willows s - sedge sgra - sedge/grass fgra - grass/forbs fsgra - sedge/grass/forbs tpj - pinyon pine/juniper taa - aspen woodlands shr - shrublands sgo - gambel oak ssa - sagebrush sms - mixed shrubland (sagebrush, service berry, snowberry) swi - willows skr - krumholtz gra - grasslands (cover type not identified) gwe - rush species, sedge species gfe - idaho fescue, thurber fescue gko - kobresia (alpine grassland) gwh - wheatgrass for - forbs (cover type not identified) fav - alpine avens and other forbs fwi - forb willow (alpine) nfl - non-forest land (cover type not identified) nic - Glaciers nsn - snow and ice fields nrk - rockland, talus, scree ndv - urban or built up land nur - urban residential areas ncr - cropland and pasture nfm - farmsteads and corrals nro - right of ways npt - strip mines, quarries and gravel pits 7) Acres - Polygon size in acres. 8) HGM_CODE_ - Hydrogeomorphic wetland type code. Wetlands classified by Rich McEldowny, SAIC and Brad Johnson, Colorado State University. Wetland classification is fully described in SAIC (2000). Code key follows. Summit County Wetland Code 1a = riverine, high-order (6)*, narrow fringe 1b = riverine, high-order (6)*, well-developed floodplain 1c = riverine, mid-order (4 or 5)*, narrow fringe 1d = riverine, mid-order (4 or 5)*, well-developed floodplain 1e = riverine, low-order (1-3)*, narrow fringe 1f = riverine, low-order (1-3)*, well-developed floodplain 2ab = slope, low-gradient (0-4%), mineral or organic soils 2cd = slope, mid-gradient (4-15%), mineral or organic soils 2ef = slope high-gradient (>15%), mineral or organic soils 3a = depressional, natural (kettle) 4c = lacustrine, man-made, stable water level 4d = lacustrine, man-made, widely fluctuating water level 9) Area - Polygon area in sq. meters. 10) CNTYWETLN - Wetland identification number for wetlands classified in the Whitehorse survey. 11) Veg - Dominant wetland as classified by Whitehorese. Code key follows. White Horse (1996) Vegetation Code 3 = water 5 = wet meadow 6 = mesic meadow 7 = irrigated meadow 8 = willow 9 = willow/wet meadow 10 = cottonwood 12 = undifferentiated upland 14 = spruce 15 = streambar 17 = mixed riparian 20 = alpine willow/rock complex 21 = low willow 22 = low willow/wet meadow 12) Notes - Self explanatory. 13) JHSN_Subclass -- HGM subclasses created by Brad Johnson (not complete). 14) Gradient -- Topographical gradient of the wetland. Only measured in Slope wetlands and not completed. 15) Hydrology -- Hydrologic inputs and outputs. Only entered for slope wetlands and not complete. in = inlet only present, out = outlet only present, tf = through flow, i.e. inlet and outlet present, or iso = isolated, i.e. no inlet, nor outlet. 16) HGM_Class - Numeric HGM class designating whether the wetland is riverine (1), Slope (2), Depression (3) or Lacustrine fringe (4). Classification derrived from the HGM_code_ field. 17) HGM_Subcla -- Letter designation of the wetland's subclass. Derrived from the HGM_code field. Must be used in conjunction with the HGM_class field. en 2010 ground condition In work As needed -106.424845 -105.774922 39.927971 39.355699 2740602.500862 2922265.999271 1555754.376981 1763017.748438 Accessible by all Summit County Governement users. Editted only by Summit County Government GIS. NONE Brad Johnson Colorado State University 970-668-4222 richf@co.summit.co.us Summit County Government Rich Ferris mailing and physical address Frisco CO 80443 US 970-668-4225 8:00 am - 5:00 pm Only FedEx and UPS to physical address Brad Johnson (Colorado State University, (970) 490-1388 or bjohnson-jec@attbi.com) produced the final data set and performed partial wetland classification. Rich McEldowny (SAIC, [RICHARD.R.MCELDOWNEY@saic.com]) performed the majority of HGM wetland classifications. ESRI ArcCatalog 9.3.1.4000 Feature Class Dataset moved. withheld 14412300 Dataset copied. withheld 09462800 Metadata imported. withheld 20030311 09313400 Vector Simple FALSE 0 TRUE FALSE coordinate pair 0.004096 0.004096 survey feet North American Datum of 1983 6378137.000000 298.257222 Geodetic Reference System 80 State Plane Colorado Central Zone 3476 GCS_North_American_1983 Explicit elevation coordinate included with horizontal coordinates 1.000000 HGM_SUBCLA HGM_SUBCLA String 50 0 0 SummitWetlandsBuffer200 Feature Class 0 Shape Feature geometry. ESRI Coordinates defining the features. PERIMETER Double 8 38 8 PERIMETER SUM_WETLND Double 8 38 8 SUM_WETLND SUM_WETL_1 Double 8 38 8 SUM_WETL_1 POLY_ Double 8 38 8 POLY_ SUBCLASS String 13 0 0 SUBCLASS SUBCLASS_ Double 8 38 8 SUBCLASS_ RINGS_OK Integer 4 10 0 RINGS_OK RINGS_NOK Integer 4 10 0 RINGS_NOK USFS_WETLN Double 8 38 8 USFS_WETLN QUADNAME String 30 0 0 QUADNAME RIPZONE String 6 0 0 RIPZONE DOMTYPE String 6 0 0 DOMTYPE SUBDOMTY1 String 6 0 0 SUBDOMTY1 ACRES Double 8 38 8 ACRES HGM_CODE_ String 18 0 0 HGM_CODE_ CNTYWETLND Double 8 38 8 CNTYWETLND VEG Double 8 38 8 VEG NOTES String 16 0 0 NOTES GRADIENT_ Double 8 38 8 GRADIENT_ HYDROLOGY String 10 0 0 HYDROLOGY OBJECTID OID 4 10 0 Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. OBJECTID AREA_ Double 8 38 8 Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. AREA_ Shape Geometry 8 0 0 Feature geometry. ESRI Coordinates defining the features. ORIG_FID BUFF_DIST Double 8 38 8 SHAPE HGM_CLASS Double 8 38 8 Feature geometry. ESRI Coordinates defining the features. HGM_CLASS ORIG_FID Integer 4 10 0 Shape.STArea() Shape.STArea() Double 0 0 0 Shape.STLength() Shape.STLength() Double 0 0 0 Accessible by all Summit County Governement users. Editted only by Summit County Government GIS. 4.939 4.939 None 20111223 FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time en 2010429 {C8301751-AA88-459C-B2D8-8AC3021D8585} 20030311 09313400 FALSE 20260304 09070800 20260304 09070800 SummitWetlandsBuffer200 002 Projected GCS_North_American_1983 Linear Unit: Foot_US (0.304801) NAD_1983_StatePlane_Colorado_Central_FIPS_0502_Feet <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.3.0'><WKT>PROJCS["NAD_1983_StatePlane_Colorado_Central_FIPS_0502_Feet",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",3000000.000316083],PARAMETER["False_Northing",999999.999996],PARAMETER["Central_Meridian",-105.5],PARAMETER["Standard_Parallel_1",38.45],PARAMETER["Standard_Parallel_2",39.75],PARAMETER["Latitude_Of_Origin",37.83333333333334],UNIT["Foot_US",0.3048006096012192],AUTHORITY["EPSG",2232]]</WKT><XOrigin>-1410503.9810839449</XOrigin><YOrigin>-2965046.6164136659</YOrigin><XYScale>244.1406247726263</XYScale><ZOrigin>0</ZOrigin><ZScale>1</ZScale><MOrigin>0</MOrigin><MScale>1</MScale><XYTolerance>0</XYTolerance><ZTolerance>0</ZTolerance><MTolerance>0</MTolerance><HighPrecision>true</HighPrecision><WKID>102654</WKID><LatestWKID>2232</LatestWKID></ProjectedCoordinateSystem> Esri ArcGIS 13.3.4.52636 SummitWetlandsBuffer200 2740602.500862 2922265.999271 1763017.748438 1555754.376981 1 -106.424845 -105.774922 39.927971 39.355699 1 ISO 19115 Geographic Information - Metadata DIS_ESRI1.0 dataset 002 withheld 4.939 Feature Class Enterprise Geodatabase Feature Class 0 20260304 NAD_1983_StatePlane_Colorado_Central_FIPS_0502_Feet EPSG 5.3(9.0.0)