STREAMS
Status: Obtained in 1995
SOURCE/CONVERSION METHODOLOGY
This data layer is from Boston Edison Company (BECo.). The original aerial photography flown between 1990 and 1991 at 1" =600’ negative scale. Digital planmetric data meet National Map Accuracy Standards for 1"=100’ mapping.
COVERAGE NAME
STREAM
FEATURE TYPE
ARCS
ATTRIBUTES
Arc Attribute Table (STREAM.AAT):
Arc: tems stream.aat
| COLUMN | ITEM NAME | WIDTH | OUTPUT | TYPE* | N.DEC | ALTERNATE NAME | INDEXED? |
| 1 | FNODE# | 4 | 5 | B | - | - | |
| 5 | TNODE# | 4 | 5 | B | - | - | |
| 9 | LPOLY# | 4 | 5 | B | - | - | |
| 13 | RPOLY# | 4 | 5 | B | - | - | |
| 17 | LENGTH | 8 | 18 | F | 5 | - | |
| 25 | STREAM# | 4 | 5 | B | - | - | |
| 29 | STREAM-ID | 4 | 5 | B | - | - | |
| 33 | SERVER-ID | 4 | 5 | B | - | - | |
| 37 | TILE-ID | 4 | 5 | B | - | - | |
| 41 | MAJOR1 | 6 | 6 | I | - | - | |
| 47 | MINOR1 | 6 | 6 | I | - | - | |
| 53 | FEATURE | 45 | 45 | C | - | - |
Sample records from the STREAM arc attribute table:
Arc: list steam.aat
1
FNODE# = 2
TNODE# = 3
LPOLY# = 0
RPOLY# = 0
LENGTH = 17.18627
STREAM# = 1
STREAM-ID = 19281
SERVER-ID = 2
TILE-ID = 780
MAJOR1 = 140
MINOR1 = 115
FEATURE = STREAM
COORDINATE SYSTEM
Massachusetts State Plane North America Datum (NAD) 83 Feet