Monitoring seasonal and annual wetland changes in a freshwater marsh with SPOT HRV data

Conference · Sun Dec 31 04:00:00 EST 1989

OSTI ID:10132130

Mackey, Jr, H E

Eleven dates of SPOT HRV data along with near-concurrent vertical aerial photographic and phenological data for 1987, 1988, and 1989 were evaluated to determine seasonal and annual changes in a 400-hectare, southeastern freshwater marsh. Early April through mid-May was the best time to discriminate among the cypress (Taxodium distichum)/water tupelo (Nyssa acquatica) swamp forest and the non-persistent (Ludwigia spp.) and persistent (Typha spp.) stands in this wetlands. Furthermore, a ten-fold decrease in flow rate from 11 cubic meters per sec (cms) in 1987 to one cms in 1988 was recorded in the marsh followed by a shift to drier wetland communities. The Savannah River Site (SRS), maintained by the US Department of Energy, is a 777 km{sup 2} area located in south central South Carolina. Five tributaries of the Savannah River run southwest through the SRS and into the floodplain swamp of the Savannah River. This paper describes the use of SPOT HRV data to monitor seasonal and annual trends in one of these swamp deltas, Pen Branch Delta, during a three-year period, 1987--1989.

• Research Organization: Westinghouse Savannah River Co., Aiken, SC (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC09-89SR18035
• OSTI ID: 10132130
• Report Number(s): WSRC-RP--89-834; CONF-9003158--2; ON: DE92009770
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540250
AERIAL SURVEYING
ANNUAL VARIATIONS
DATA ACQUISITION
FORESTS
HISTORICAL ASPECTS
MARSHES
MONITORING
PHENOLOGY
REMOTE SENSING
SATELLITES
SAVANNAH RIVER
SAVANNAH RIVER PLANT
SEASONAL VARIATIONS
SITE RESOURCE AND USE STUDIES
SOUTH CAROLINA
SWAMPS