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H_100K
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HYDROLOGIC FEATURES - AREA ATTRIBUTES
Following is a summary of the area (polygon) attributes which are present
in the ArcView coverage H_100K. They may be selected using attribute
PT_FREQ and the corresponding number, or by the attribute POLYTYPE and
the corresponding character string. FREQUENCY lists the number of occurences
for each attribute in this polygon coverage.
This map was created by linking 7 USGS 1:100,000 scale DLG files and
eliminating all boundary lines (DLG files: ze1.hyf05,ze1.hyf06,ze3.hyf01,
ze3.hyf02,ze3.hyf05,ze3.hyf06,rh4.hyf04,rh4.hyf08). USGS Major and Minor
attribute codes present in this map coverage are also summarized below. Major
code 50 is HYDROLOGIC FEATURES. These codes may also be used to select,
or isolate, particular features.
Areas without data, and empty attribute columns, are labeled major and minor
code -99999.
POLYGON TYPES
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PT_FREQ POLYTYPE FREQUENCY
1 abandoned_spoil/dredge/dump 2
2 channel 4
3 no_data 396
4 estuary 73
5 lake/pond 38
6 marsh/wetland 355
7 navigible_channel 2
8 spoil/dredge/dump 4
9 stream 58
10 tidal_flat/mud_flat 358
USGS CODES
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MAJOR MINOR DESCRIPTION FREQUENCY
50 111 Marsh, wetland, swamp or bog 355
50 115 Flats (tidal, mud, sand or gravel) 358
50 116 Bays, estuaries, gulfs, oceans or seas 73
50 412 Stream 58
50 419 Channel in water area 6
50 421 Lake or pond 38
50 424 Spoil area, derdged area, or dump area 6
50 611 Abandoned or discontinued 2
50 616 Navigable - transportation 1
50 619 Interpolated elevation 1
52 1 Interpolated elevation of 1 meter (33.9 in.) 1
Arc: |> list hmmpat.dat <|
Record MM_FREQ FREQUENCY MAJOR1 MAJOR2 MAJOR3 MINOR1 MINOR2 MINOR3
1 1 396 -99999 -99999 -99999 -99999 -99999 -99999
2 2 355 50 -99999 -99999 111 -99999 -99999
3 3 358 50 -99999 -99999 115 -99999 -99999
4 4 73 50 -99999 -99999 116 -99999 -99999
5 5 58 50 -99999 -99999 412 -99999 -99999
6 6 4 50 -99999 -99999 419 -99999 -99999
7 7 37 50 -99999 -99999 421 -99999 -99999
8 8 4 50 -99999 -99999 424 -99999 -99999
9 9 2 50 50 -99999 419 616 -99999
10 10 2 50 50 -99999 424 611 -99999
11 11 1 50 50 52 421 619 1
Arc: |> list h_mm_freq.dat <|
Record MM_FREQ FREQUENCY MAJOR1 MAJOR2 MAJOR3 MINOR1 MINOR2 MINOR3
1 1 16 -99999 -99999 -99999 -99999 -99999 -99999
2 2 169 50 -99999 -99999 200 -99999 -99999
3 3 155 50 -99999 -99999 202 -99999 -99999
4 4 756 50 -99999 -99999 204 -99999 -99999
5 5 365 50 -99999 -99999 412 -99999 -99999
6 6 16 50 -99999 -99999 419 -99999 -99999
7 7 11 50 -99999 -99999 424 -99999 -99999
8 8 1238 50 -99999 50 200 -99999 200
9 9 7 50 -99999 50 204 -99999 200
10 10 159 50 -99999 50 605 -99999 200
11 11 126 50 -99999 50 606 -99999 200
12 12 1 50 50 -99999 200 202 -99999
13 13 9 50 50 -99999 412 610 -99999
14 14 1 50 50 -99999 424 611 -99999
15 15 1 50 50 50 200 606 200
16 16 28 50 58 50 200 0 200
17 17 1 50 58 50 202 0 200
18 18 2 50 59 -99999 202 9 -99999
19 19 3 50 59 -99999 204 9 -99999
20 20 5 50 59 -99999 412 9 -99999
21 21 142 50 59 50 200 9 200
22 22 1 50 59 50 605 9 200
23 23 1 50 59 50 606 9 200
24 24 1 59 50 -99999 9 202 -99999
25 25 4 59 50 50 9 200 200
26 26 3 59 58 50 9 0 200
Arc WATCH files names: h_lt_freq_dat
h_mm_freq.dat
h_pt_pat.dat
hmmpat.dat