Below is a listing of the attributes found in the three coverages
(_lubc, _sstru, and _astru). The first seven items found in the .aat
files and the first four items in the .pat file are ArcInfo generated.
Nthb_lubc contains duplicate items; items with a 'c' suffix contain
text. FEATURE and FEATUREC contain land use and have the following
values: 0 or ' ' = no data, 1 = forested, 2 = scrub-shrub, 3 = grass,
4 = residential, 5 = commercial, 6 = bare, 7 - timbered,
10 = agriculture, 11 - paved, and 12 - industrial. HEIGHT and HEIGHTC
are the bank height with 0 or ' ' = no data, 1 = 0 - 5 feet, 2 = 5 - 10
feet, 3 = 10 - 30 feet, and 4 = greater than 30 feet. COVER and COVERC
describe the bank cover where 0 or ' ' = no data, 1 = bare or less
than 25% covered, 2 = partial coverage (25-75% coverage), and 3 = full
coverage (greater than 75% coverage). EROS and EROSC are the bank
erosion condition where 0 or ' ' is no data, 1 is low erosion and 2
is high erosion. MARSH and MARSHC define 0 or ' ' = no data, 1 = marsh
eroding, 2 = marsh not eroding, and 3 = no marsh. BEACH and BEACHC
define 0 or ' ' = no data, 1 = beach eroding, 2 = beach not eroding,
and 3 = no beach. REMOTE refers to how the data was gathered: a blank
value or an "n" indicates the data was collected with the GPS unit in
the field, a "y" indicates that the shoreline attributes where
determined from the DOQQ imagery. However, an empty REMOTE value
along with other empty values indicates no data was collected. STRUCTURE
contains the types of shoreline structures found in Northumberland
County: bulkhead, riprap, jetty, breakwater, groinfields, miscellaneous
(bricks, timbers, concrete blocks, tires, etc.), and marina. PNTSTRUC
contains the types of access structures or points of interest found
within the county: docks/piers, boathouses, public and private ramps,
and other points of interest.
NTHB_LUBC.AAT:
COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME
1 FNODE# 4 5 B -
5 TNODE# 4 5 B -
9 LPOLY# 4 5 B -
13 RPOLY# 4 5 B -
17 LENGTH 4 12 F 3
21 NTHB_LUBC# 4 5 B -
25 NTHB_LUBC-ID 4 5 B -
29 FEATURE 2 2 I -
31 HEIGHT 1 1 I -
32 COVER 1 1 I -
33 EROS 1 1 I -
34 MARSH 1 1 I -
35 BEACH 1 1 I -
36 REMOTE 2 2 C -
38 FEATUREC 25 25 C -
63 HEIGHTC 6 6 C -
69 COVERC 8 8 C -
77 EROSC 10 10 C -
87 MARSHC 20 20 C -
107 BEACHC 20 20 C -
NTHB_SSTRU.AAT:
COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME
1 FNODE# 4 5 B -
5 TNODE# 4 5 B -
9 LPOLY# 4 5 B -
13 RPOLY# 4 5 B -
17 LENGTH 4 12 F 3
21 NTHB_SSTRU# 4 5 B -
25 NTHB_SSTRU-ID 4 5 B -
29 STRUCTURE 30 30 C -
59 REMOTE 2 2 C -
NTHB_ASTRU.PAT:
COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME
1 AREA 4 12 F 3
5 PERIMETER 4 12 F 3
9 NTHB_ASTRU# 4 5 B -
13 NTHB_ASTRU-ID 4 5 B -
17 PNTSTRUC 30 30 C -
47 REMOTE 2 2 C -