| Arc attributes
found in the Lakes Digital Geography |
| PNMCD |
11-digit Primary
Name Code: All reaches of a given stream have been assigned the same
name and the same primary name code. Other streams having that same
name will have different primary name codes. |
| HR |
Unique 2-digit
identifier for each hydrologic region. |
| EDASUBEDA |
The watershed
in which the lake is primarily located. A code assigned to
each derived spatial area (e.g., an EDA or CDA). Concatenated
from the EDACDA attribute and SUBEDA attribute of NOAA's Coastal
Assessment Framework. |
| REGION |
Region of the
Coastal Assessment Framework. |
|
N |
Polygons of the North Atlantic
region. |
|
M |
Polygons of the Middle Atlantic
region. |
|
S |
Polygons of the South Atlantic
region. |
|
G |
Polygons of the Gulf of Mexico
region. |
|
P |
Polygons of the Pacific region. |
|
L |
Polygons of the Great Lakes
region. |
|
U |
Polygons within the US border,
but not a part of the CAF. |
|
X |
Polygons outside US boundaries. |
| NEW_RFTHIN |
An enhanced version
of EPA's RFTHIN. This attribute includes consistent NEW_RFTHIN
values for the shorelines around lakes (reach type = L). It provides
the capability to select a range of thinned, connected river networks
that include lake shorelines. Code which can be used to thin
RF1 |
|
0 |
unnetworked reach |
|
1 |
reach in the main networked
path that connects catalog units or is the lowest level path in headwater
catalog units. |
|
2 |
tributaries to reaches with
NEW_RFTHIN =1 |
|
3 |
tributaries to reaches with
NEW_RFTHIN =2. |
|
4 |
tributaries to reaches with
NEW_RFTHIN =3 |
|
5 |
tributaries to reaches with
NEW_RFTHIN =4 |
|
6 |
tributaries to reaches with
NEW_RFTHIN =5 |
|
7 |
tributaries to reaches with
NEW_RFTHIN =6 |
| LAKE_NAME |
Lake Name was
set to
‘OWNAME’ (Open Water Name). In cases where OWNAME was blank,
NOS named the lake according to the county and state in which it was
primarily located. |
| RIVER_NAME |
Lake reaches were
assigned an associated River Name reflecting the river that flows
through and out of the lake. All non-lake reaches were assigned a ‘NA’ (Not
Applicable) for this variable. |
| LAKE_ORIG |
Origin of Lake,
'Original Lakes' are those derived from Type 'L' Reaches, those identified
as 'Added Later' were determined to be Lakes/Reservoirs but were
not declared a Type 'L' (Lake) in the original River Reach 1 file
or came from the enhancing source (NOAA's CAF). |
| AREA_MI2 |
Area
of polygon in square statute miles (calculated from geographies in
Albers equal-area conic projection; minor distortion above and below
standard parallels) |
