Hubbard Brook LTER Site Digital Data DATA LAYER SUMMARY Coverage: vege Data Layer: Vegetation map Feature Type: polygon DATA SOURCE Map Date: May, 1954 Map Scale: 1:7920 Media: Paper Diazo Copy Description: Diazo copy of Hubbard Brook Major Vegetation Units Map. UTM coordinate system shown. The vegetation unit boundaries were manually digitized. DATA FORMAT Software: Arc Version 7.0.4 (ESRI, Inc.) Projection: UTM Zone 19 ACCURACY Feature Accuracy: The lines were digitized on a Calcomp 9500 series plotter set at 1000 ppi without being registered. A "rubber sheeting" of the resulting coverage was done to obtain the best fit with existing data sets. DATA DEVELOPMENT Date Created: April 30, 1990 Original Projection: NH State Plane Last updated: June 24, 1991 NOTES CODE is a numeric code assigned to each vegetative unit, MAPSYM contains the soil unit map symbol displayed on the map, UNIT stores the vegetative unit description, and SYMBOL stores a symbol for shading of unit polygons. DETAILED DESCRIPTIONS FEATURE CLASSES Number of Attribute Spatial Feature Class Subclass Features data (bytes) Index? Topology? ------------- -------- --------- ------------ ------- --------- ARCS 1181 POLYGONS 562 64 Yes NODES 884 SECONDARY FEATURES Tics 45 Arc Segments 41092 Polygon Labels 561 TOLERANCES Fuzzy = 0.972 V Dangle = 10.000 V COVERAGE BOUNDARY Continue? Xmin = 274924.031 Xmax = 284407.906 Ymin = 4866008.000 Ymax = 4871217.000 STATUS The coverage has not been Edited since the last BUILD or CLEAN. COORDINATE SYSTEM DESCRIPTION Projection UTM Zone 19 Datum NAD27 Units METERS Spheroid CLARKE1866 Parameters: ITEMS VEGE.PAT COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME INDEXED? 1 AREA 4 12 F 3 - 5 PERIMETER 4 12 F 3 - 9 VEGE# 4 5 B - - 13 VEGE-ID 4 5 B - - 17 CODE 4 4 I - - 21 MAPSYM 4 4 C - - 25 UNIT 36 36 C - - 61 SYMBOL 3 3 I - - Record code mapsym unit symbol 1 0 0 2 3 Sh Mixture - Predominantly Softwoods 3 3 4 S Softwoods 4 4 4 S Softwoods 4 5 3 Sh Mixture - Predominantly Softwoods 3 6 2 Hs Mixture - Predominantly Hardwoods 2 7 1 H Hardwoods 1 etc... ITEMS VEGE.LUT $RECNO CODE MAPSYM UNIT SYMBOL 1 1 H Hardwoods 1 2 2 Hs Mixture - Predominantly Hardwoods 2 3 3 Sh Mixture - Predominantly Softwoods 3 4 4 S Softwoods 4 5 5 W Water Bodies 5 6 6 N Non-Forested 6