Publication details

Diachronic analysis of floodplain lakes of the Sacramento River



Year of publication 2009
Type Article in Periodical
Magazine / Source Geografický časopis
MU Faculty or unit

Faculty of Science

Field Earth magnetism, geography
Keywords lateral erosion; floodplain lake; human influence; Sacramento River
Description This study is based on temporal (diachronic) analysis of floodplain lakes using aerial photographs (1942, 1962, 1985 and 1999). The synchronic analysis researches into the internal linkages of a system at a given point in time. A diachronic analysis regards the phenomenon in terms of developments through time. We analysed the planimetric changes in order to highlight the spatial structures and their stability over time. Aerial photography is used for diverse diachronic analyses of channel change on the Sacramento River, California. Georeferenced and rectified aerial photos and maps are most desirable for use in the analysis of meander migration and floodplain lakes. All data were integrated into a GIS database (ArcGIS 9.3). Three main types of floodplain lakes were observed according to their spatial geometry, plug length and connection to the main channel: the oxbow lakes, the straight backwaters and the straight secondary channels.

You are running an old browser version. We recommend updating your browser to its latest version.

More info