Abstract
Between 2001 and 2005, seven category 3 or higher major hurricanes made landfall within the US. The hydrologic impacts of these distinct climatic phenomena frequently occurring in wetland watersheds, however, are not well understood. The focus of this study was to evaluate the impacts of hurricane wind and rainfall conditions on water velocity and water elevations within the study wetland, the Florida Everglades. Specifically water velocity data was measured near two tree islands (Gumbo Limbo (GL) and Satin Leaf (SL)) and wind speed, water elevation, and rainfall were obtained from nearby wind observation stations. During the direct impacts of the hurricanes (Hurricanes Katrina and Wilma), water speed, flow direction, and hydraulic gradients were altered, and the extent of variation was positively related to wind characteristics, with significant alterations in flow direction at depth during Hurricane Wilma due to higher wind speeds. After the direct impacts, the longer lasting effect of hurricanes (time scale of a few days) resulted in altered flow speeds that changed by 50% or less. These longer lasting changes in flow speeds may be due to the redistribution of emergent vegetation.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 164-173 |
| Number of pages | 10 |
| Journal | Journal of Hydrology |
| Volume | 392 |
| Issue number | 3-4 |
| DOIs | |
| State | Published - Oct 2010 |
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Keywords
- Hurricane
- Water velocity
- Wetland
- Wind velocity
ASJC Scopus subject areas
- Water Science and Technology
Cite this
Impacts of hurricanes on surface water flow within a wetland. / Deng, Yang; Solo-Gabriele Helena M., H. M.; Laas, Michael; Leonard, Lynn; Childers, Daniel; He, Guoqing; Engel, Victor.
In: Journal of Hydrology, Vol. 392, No. 3-4, 10.2010, p. 164-173.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Impacts of hurricanes on surface water flow within a wetland
AU - Deng, Yang
AU - Solo-Gabriele Helena M., H. M.
AU - Laas, Michael
AU - Leonard, Lynn
AU - Childers, Daniel
AU - He, Guoqing
AU - Engel, Victor
PY - 2010/10
Y1 - 2010/10
N2 - Between 2001 and 2005, seven category 3 or higher major hurricanes made landfall within the US. The hydrologic impacts of these distinct climatic phenomena frequently occurring in wetland watersheds, however, are not well understood. The focus of this study was to evaluate the impacts of hurricane wind and rainfall conditions on water velocity and water elevations within the study wetland, the Florida Everglades. Specifically water velocity data was measured near two tree islands (Gumbo Limbo (GL) and Satin Leaf (SL)) and wind speed, water elevation, and rainfall were obtained from nearby wind observation stations. During the direct impacts of the hurricanes (Hurricanes Katrina and Wilma), water speed, flow direction, and hydraulic gradients were altered, and the extent of variation was positively related to wind characteristics, with significant alterations in flow direction at depth during Hurricane Wilma due to higher wind speeds. After the direct impacts, the longer lasting effect of hurricanes (time scale of a few days) resulted in altered flow speeds that changed by 50% or less. These longer lasting changes in flow speeds may be due to the redistribution of emergent vegetation.
AB - Between 2001 and 2005, seven category 3 or higher major hurricanes made landfall within the US. The hydrologic impacts of these distinct climatic phenomena frequently occurring in wetland watersheds, however, are not well understood. The focus of this study was to evaluate the impacts of hurricane wind and rainfall conditions on water velocity and water elevations within the study wetland, the Florida Everglades. Specifically water velocity data was measured near two tree islands (Gumbo Limbo (GL) and Satin Leaf (SL)) and wind speed, water elevation, and rainfall were obtained from nearby wind observation stations. During the direct impacts of the hurricanes (Hurricanes Katrina and Wilma), water speed, flow direction, and hydraulic gradients were altered, and the extent of variation was positively related to wind characteristics, with significant alterations in flow direction at depth during Hurricane Wilma due to higher wind speeds. After the direct impacts, the longer lasting effect of hurricanes (time scale of a few days) resulted in altered flow speeds that changed by 50% or less. These longer lasting changes in flow speeds may be due to the redistribution of emergent vegetation.
KW - Hurricane
KW - Water velocity
KW - Wetland
KW - Wind velocity
UR - http://www.scopus.com/inward/record.url?scp=77957018616&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77957018616&partnerID=8YFLogxK
U2 - 10.1016/j.jhydrol.2010.08.004
DO - 10.1016/j.jhydrol.2010.08.004
M3 - Article
AN - SCOPUS:77957018616
VL - 392
SP - 164
EP - 173
JO - Journal of Hydrology
JF - Journal of Hydrology
SN - 0022-1694
IS - 3-4
ER -