MODIFIERS
|_ A=Temporarily Flooded
|_ B=Saturated
|_ C=Seasonally Flooded
|_ D=Seasonally Flooded/Well Drained
|_ E=Seasonally Flooded/Saturated
|_ F=Semipermanently Flooded
|__Non-Tidal______|_ G=Intermittently Exposed
| |_ H=Permanently Flooded
| |_ J=Intermittently Flooded
| |_ K=Artificially Flooded
| |_ W=Intermittently Flooded/Temporary (used on older maps)
| |_ Y=Saturated/Semipermanent/Seasonal (used on older maps)
| |_ Z=Intermittently Exposed/Permanent (used on older maps)
| |_ U=Unknown
|
|
|
WATER REGIME____|
|
|
|
|
| |_ K=Artificially Flooded
| |_ L=Subtidal
| |_ M=Irregularly Exposed
| |_ N=Regularly Flooded
|__Tidal__________|_ P=Irregularly Flooded
|_*S=Temporary-Tidal
|_*R=Seasonal-Tidal
|_*T=Semipermanent-Tidal
|_*V=Permanent-Tidal
|_ U=Unknown
|
|_*These water regimes are only used in
| tidally influenced, freshwater systems.
|_ 1=Hyperhaline
|_ 2=Euhaline
|__Coastal |_ 3=Mixohaline (Brackish)
| Halinity_______|_ 4_Polyhaline
| |_ 5=Mesohaline
| |_ 6=Oligohaline
| |_ 0=Fresh
|
|
|
WATER CHEMISTRY_|
| |_ 7=Hypersaline
|__Inland |_ 8=Eusaline
| Salinity_______|_ 9=Mixosaline
| |_ 0=Fresh
|
|
|
|
|__pH Modifiers |_ a=Acid
for all |_ t=Circumneutral
Fresh Water____|_ i=Alkaline
SOIL______________________________|_ g=Organic
|_ n=Mineral
|_ b=Beaver
|_ d=Partially Drained/Ditched
SPECIAL MODIFIERS_________________|_ f=Farmed
|_ h=Diked/Impounded
|_ r=Artificial Substrate
|_ s=Spoil
|_ x=Excavated
U = Uplands
For additional information regarding this Web page, contact Deb Southworth Green, in the Division of Information Resources and Technology Management, at Deb_Green@fws.gov
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Keywords=GIS, data, modifiers, water regime, water chemistry, soil,
special
Last Modified January 02, 2001 03:06 PM