Hubbard Brook LTER Site Digital Data


DATA LAYER SUMMARY

Coverage:  bedrock
Data Layer:  Bedrock geology
Feature Type:  polygon


DATA SOURCE

Map Date:  August 28, 1995
Map Scale:  1;12000
Media:  Digital

Description:  This coverage was obtained in digital form from Christ Barton of 
the USGS.  Bedrock geology in the Hubbard Brook Valley was mapped by C.C. 
Barton, R.H. Comerlo, and S.W. Bailey, August 1994 to August 1995.  The Map is 
entitled "BEDROCK GEOLOGIC MAP OF HUBBARD BROOK EXPERIMENTAL FOREST AND MAPS OF 
FRACTURES AND GEOLOGY IN ROADCUTS ALONG INTERSTATE 93, GRAFTON COUNTY, NEW 
HAMPSHIRE" and was approved for publication on August 28, 1995.

DATA FORMAT

Software: ARC Version 7.0.4 (ESRI, Inc.)
Projection:  UTM Zone 19


ACCURACY

Feature Accuracy:  Unknown  


DATA DEVELOPMENT

Date Created:  August 28, 1995
Original Projection:  UTM Zone 19
Last updated:  August 28, 1995


DETAILED DESCRIPTION

                                FEATURE CLASSES

                                    Number of  Attribute     Spatial
Feature Class          Subclass     Features   data (bytes)  Index?   Topology?
-------------          --------     ---------  ------------  -------  ---------
ARCS                                      555        64
POLYGONS                                  204        54               Yes
NODES                                     454
ANNOTATIONS             (blank)            21

                               SECONDARY FEATURES

Tics                                       45
Arc Segments                            19001
Polygon Labels                            199

                                   TOLERANCES

Fuzzy   =                 0.972 V          Dangle  =                 0.000 V

                               COVERAGE BOUNDARY

Xmin =               274924.031            Xmax =               284809.344
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 BEDROCK.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  BEDROCK#               4     5     B      -                        -
   13  BEDROCK-ID             4     5     B      -                        -
   17  PTYPE                 35    35     C      -                        -
   52  SYMB                   3     3     I      -                        -


Record  ptype                               symb

     1                                        0
     2  kqm inf                              10
     3  ur out                               45
     4  ur out                               45
     5  ur inf                               57
     6  lr inf                               67
     7  lr out                               70
     8  lr out                               70
     9  kqm out                             104
    10  kqm out                             104
    11  ur out                               45
etc...