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|  MIL-D-89009
APPENDIX
30.4.3 Drainage system coverage.
a. Coverage contents. This coverage contains generalized
drainage system information. Attribute values are as
described in the integer value description table
(TABLE 138).
b. DNAREA.AFT attribute definitions. TABLE 139 describes
the attribution for drainage system area feature table
(DNAREA.AFT).
c. DNLINE.LFT attribute definitions. TABLE 140 describes
the attribution for the drainage system line feature
table (DNLINE.LFT).
TABLE 138.
Drainage system integer value description table
(INT.VDT).
{Header length};\
Drainage System Integer Value Description Table;-;\
ID=
I, 1,N,Row Identifier,-,-,:\
TABLE=
T,12,P,Name of Feature Table,-,-,:\
ATTRIBUTE= T,16,P,Attribute Name,-,-,:\
VALUE=
I, 1,P,Attribute Value,-,-,:\
DESCRIPTION=T,50,N,Attribute Value Description,-,-,:;
1
DNAREA.AFT
DNPYTYPE 1
Inland Water - perennial
2
DNAREA.AFT
DNPYTYPE 2
Inland Water - non-perennial
3
DNLINE.LFT
DNLNTYPE 1
Streams, rivers, channelized rivers
4
DNLINE.LFT
DNLNTYPE 2
Inland shorelines
TABLE 139.
Drainage system area feature table (DNAREA.AFT).
{Header length};\
Drainage System areas;-;\
ID=
I,1,P,Row Identifier,-,-,:\
DNPYTYPE=I,1,N,Type of Drainage Area,INT.VDT,-,:;
1
2
2
2
:
:
n
n
DNPYTYPE
1 = Inland water - perennial
2 = Inland water - non-perennial
173
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