The present stage of Fluvio-Geomorphological research in
context of Euro-American Collaboration (Exemples of Sacramento
River). Longitudinal and temporal evolution of the Sacramento
River between Red Bluf and Colusa, California, USA (1942-1999)

a 2009

The present stage of Fluvio-Geomorphological research in context of Euro-American Collaboration (Exemples of Sacramento River). Longitudinal and temporal evolution of the Sacramento River between Red Bluf and Colusa, California, USA (1942-1999)

ŠULC MICHALKOVÁ, Monika; Hervé PIÉGAY a Mathias G KONDOLF

Základní údaje

Originální název

The present stage of Fluvio-Geomorphological research in context of Euro-American Collaboration (Exemples of Sacramento River). Longitudinal and temporal evolution of the Sacramento River between Red Bluf and Colusa, California, USA (1942-1999)

Autoři

ŠULC MICHALKOVÁ, Monika; Hervé PIÉGAY a Mathias G KONDOLF

Vydání

2009

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

Zemský magnetismus, geodesie, geografie

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Označené pro přenos do RIV

Organizační jednotka

Přírodovědecká fakulta

ISBN

978-80-7399-746-5

Klíčová slova anglicky

lateral evolution aerial photos Sacramento River

Příznaky

Mezinárodní význam

Změněno: 27. 3. 2013 12:54, Mgr. Monika Šulc Michalková, Ph.D. et Ph.D.

Anotace

V originále

Historic and archival aerial images hold a important information which offers the potential to enhance our understanding of long term channel change in both natural and anthropogenically impacted settings. We analyzed historical channel changes from archival aerial photographs to document the evolution of the main channel and floodplain lakes over a 140-km reach of the Sacramento River, from Red Bluff to Colusa, California, from 1942 to 1999. This period spans the construction of Shasta Dam in 1944, and thus effects of altered flow regime on lateral channel and floodplain morphology should be visible in the aerial imagery. Multivariate analysis on the results of the historical analysis demonstrated that whilst channel geometry was simplified after the construction of Shasta dam, long-term channel evolution was not dominated by dam-induced channel changes, but affected more by other anthropogenic impacts. Since the mid 19th century, anthropic bank stabilisation in the downstream part of the study reach have hindered lateral channel migration, and have thus significantly affected channel evolution. In the upstream part of the study reach, bank stabilisation works were limited and nearly absent. By using catchment-scale, time dependent data, the key factors of channel change can be isolated, thus leading to an understanding of the long term evolution of the channel and oxbow lakes.

Citovat

ŠULC MICHALKOVÁ, Monika; Hervé PIÉGAY a Mathias G KONDOLF. The present stage of Fluvio-Geomorphological research in context of Euro-American Collaboration (Exemples of Sacramento River). Longitudinal and temporal evolution of the Sacramento River between Red Bluf and Colusa, California, USA (1942-1999). 2009. ISBN 978-80-7399-746-5.

@proceedings{1082059,
   author = {Šulc Michalková, Monika and Piégay, Hervé and Kondolf, Mathias G},
   keywords = {lateral evolution aerial photos Sacramento River},
   language = {eng},
   isbn = {978-80-7399-746-5},
   title = {The present stage of Fluvio-Geomorphological research in context of Euro-American Collaboration (Exemples of Sacramento River). Longitudinal and temporal evolution of the Sacramento River between Red Bluf and Colusa, California, USA (1942-1999)},
   year = {2009}
}

TY  - CONF
ID  - 1082059
AU  - Šulc Michalková, Monika - Piégay, Hervé - Kondolf, Mathias G
PY  - 2009
TI  - The present stage of Fluvio-Geomorphological research in context of Euro-American Collaboration (Exemples of Sacramento River). Longitudinal and temporal evolution of the Sacramento River between Red Bluf and Colusa, California, USA (1942-1999)
SN  - 9788073997465
KW  - lateral evolution aerial photos Sacramento River
N2  - Historic and archival aerial images hold a important information which offers the potential to enhance our understanding of long term channel change in both natural and anthropogenically impacted settings. We analyzed historical channel changes from archival aerial photographs to document the evolution of the main channel and floodplain lakes over a 140-km reach of the Sacramento River, from Red Bluff to Colusa, California, from 1942 to 1999. This period spans the construction of Shasta Dam in 1944, and thus effects of altered flow regime on lateral channel and floodplain morphology should be visible in the aerial imagery. Multivariate analysis on the results of the historical analysis demonstrated that whilst channel geometry was simplified after the construction of Shasta dam, long-term channel evolution was not dominated by dam-induced channel changes, but affected more by other anthropogenic impacts. Since the mid 19th century, anthropic bank stabilisation in the downstream part of the study reach have hindered lateral channel migration, and have thus significantly affected channel evolution. In the upstream part of the study reach, bank stabilisation works were limited and nearly absent. By using catchment-scale, time dependent data, the key factors of channel change can be isolated, thus leading to an understanding of the long term evolution of the channel and oxbow lakes.
ER  -

ŠULC MICHALKOVÁ, Monika; Hervé PIÉGAY a Mathias G KONDOLF. \textit{The present stage of Fluvio-Geomorphological research in context of Euro-American Collaboration (Exemples of Sacramento River). Longitudinal and temporal evolution of the Sacramento River between Red Bluf and Colusa, California, USA (1942-1999)}. 2009. ISBN~978-80-7399-746-5.

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