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EPA Tensas River Basin 1992 NALC with Land Cover Classification Metadata12-19-2006
Procedures_Used: This coverage was derived from classification of 1991 NALC datasets for the Tensas Study area. The classification method used was a ERDAS Imagine supervisied classification procedure.
http://www.epa.gov/esd/land-sci/tensas/pages/xmetadata_tr92p.html (HTML)
EPA Tensas River Basin 1972 NALC with Land Cover Classification Metadata12-19-2006
Procedures_Used: This coverage was derived from classification of 1972 NALC datasets for the Tensas Study area. The classification method used was a ERDAS Imagine supervisied classification procedure.
http://www.epa.gov/esd/land-sci/tensas/pages/xmetadata_tr70p.html (HTML)
EPA Watershed Academy: Stream Classification09-12-2008
... incised), confined, and unstable due to the active lateral and vertical accretion processes... 12 of 25 Top --->   EPAADDEDTEXT EPA Watershed Academy: Stream Classification.
http://www.epa.gov/watertrain/stream_class/12rt.htm (HTML)
EPA Watershed Academy: Stream Classification09-12-2008
Entrenchment The term "entrenchment ratio," which is the vertical containment of the river, has been quantitatively defined (Rosgen 1994 ... twice the maximum bankfull channel depth as determined by the vertical distance between bankfull stage and the thalweg of a riffle.
http://www.epa.gov/watertrain/stream_class/20rt.htm (HTML)
EPA Watershed Academy: Stream Classification09-12-2008
The Level II classification process employs more finely resolved criteria in order to address ... criteria are used to conduct a Level II stream type classification.
http://www.epa.gov/watertrain/stream_class/17rt.htm (HTML)
EPA Watershed Academy: Stream Classification09-12-2008
Part 1: Level I Stream Classification The Level I stream classification serves four primary functions: provide for the initial integration of ...
http://www.epa.gov/watertrain/stream_class/03rt.htm (HTML)
2002 Annual Report | Investigations of Factors Determining the Occurrence of Ozone and Fine Particles in Northeastern USA02-26-2004
The vertical profile measurements from lidar, radar, acoustic sounding, balloons, and aircraft of the NEOPS program have demonstrated that vertical profiles are required to understand any air pollution episode ...
http://cfpub.epa.gov/ncer_abstracts/index.cfm/fuseaction/display.abstr... (HTML)
EPA - TTN NAAQS03-04-2008
... the modeling region, the coordinate system, and the horizontal and vertical grid resolution... The vertical diffusion coefficient was derived by interpolation of the RAMS- or SAIMM-generated vertical exchange coefficients ...
http://www.epa.gov/ttn/naaqs/ozone/rto/otag/finalrpt/chp2/finalf.htm (HTML)
EPA - TTN NAAQS OTAG Technical Supporting Document Chapter 2 Regional and Urban Scale Modeling Workgroup03-04-2008
... the modeling region, the coordinate system, and the horizontal and vertical grid resolution... The vertical diffusion coefficient was derived by interpolation of the RAMS- or SAIMM-generated vertical exchange coefficients ...
http://www.epa.gov/ttn/naaqs/ozone/rto/otag/finalrpt/chp2_new/finalf.h... (HTML)
EPA - TTN NAAQS - Ozone - RTO - Resource List - 40 CFR 81 on July 1, 199603-04-2008
X ---------------------------------------------------------------------------------------------------------------- Alabama--Carbon Monoxide ---------------------------------------------------------------------------------------------------------------- Designation Classification Designated Area ------------------------------------------------------------------------- Date\1\ Type Date\1\ Type ---------------------------------------------------------------------------------------------------------------- Statewide... Page 63]] Alabama-Lead ---------------------------------------------------------------------------------------------------------------- Designation Classification Designated area ------------------------------------------------------------------------- Date Type Date Type ---------------------------------------------------------------------------------------------------------------- Statewide.
http://www.epa.gov/ttn/naaqs/ozone/rto/ozonetech/cfr81_96.htm (HTML)

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