Elijah Ramsey, III, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 76
Oil detection in a coastal marsh with polarimetric Synthetic Aperture Radar (SAR)
The National Aeronautics and Space Administration's airborne Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) was deployed in June 2010 in response to the Deepwater Horizon oil spill in the Gulf of Mexico. UAVSAR is a fully polarimetric L-band Synthetic Aperture Radar (SAR) sensor for obtaining data at high spatial resolutions. Starting a month prior to the UAVSAR collections...
Authors
Elijah Ramsey, Amina Rangoonwala, Yukihiro Suzuoki, Cathleen E. Jones
Monitoring coastal inundation with Synthetic Aperture Radar satellite data
Maps representing the presence and absence of surface inundation in the Louisiana coastal zone were created from available satellite scenes acquired by the Japanese Aerospace Exploration Agency's Advanced Land Observing Satellite and by the European Space Agency's Envisat from late 2006 through summer 2009. Detection of aboveground surface flooding relied on the well-documented and...
Authors
Yukihiro Suzuoki, Amina Rangoonwala, Elijah Ramsey
Monitoring duration and extent of storm-surge and flooding in Western Coastal Louisiana marshes with Envisat ASAR data
Inundation maps of coastal marshes in western Louisiana were created with multitemporal Envisat Advanced Synthetic Aperture (ASAR) scenes collected before and during the three months after Hurricane Rita landfall in September 2005. Corroborated by inland water-levels, 7 days after landfall, 48% of coastal estuarine and palustrine marshes remained inundated by storm-surge waters. Forty...
Authors
Elijah Ramsey, Zhong Lu, Yukihiro Suzuoki, Amina Rangoonwala, Dirk Werle
Daily MODIS data trends of hurricane-induced forest impact and early recovery
We studied the use of daily satellite data from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensors to assess wetland forest damage and recovery from Hurricane Katrina (29 August 2005 landfall). Processed MODIS daily vegetation index (VI) trends were consistent with previously determined impact and recovery patterns provided by the "snapshot" 25 m Landsat Thematic Mapper...
Authors
Elijah Ramsey, Joseph P. Spruce, Amina Rangoonwala, Yukihiro Suzuoki, James L. Smoot, Jerry Gasser, Terri Bannister
Mapping the onset and progression of marsh dieback
Along the Gulf of Mexico (GOM) coasts, vast wetlands inject valuable nutrients and suspended and dissolved materials into the coastal ocean. Juncus roemerianus (black needlerush) wetlands, dominating coastlines in the northeastern GOM, transition to the Spartina alternifl ora (smooth cordgrass) coastline of Louisiana. Mixed marsh and mangrove barrier island systems occupy the...
Authors
Elijah Ramsey, Amina Rangoonwala
Satellite optical and radar data used to track wetland forest impact and short-term recovery from Hurricane Katrina
Satellite Landsat Thematic Mapper (TM) and RADARSAT-1 (radar) satellite image data collected before and after the landfall of Hurricane Katrina in the Pearl River Wildlife Management Area on the Louisiana-Mississippi border, USA, were applied to the study of forested wetland impact and recovery. We documented the overall similarity in the radar and optical satellite mapping of impact and...
Authors
Elijah Ramsey, Amina Rangoonwala, Beth A Middleton, Z. Lu
Science and Products
Filter Total Items: 76
Oil detection in a coastal marsh with polarimetric Synthetic Aperture Radar (SAR)
The National Aeronautics and Space Administration's airborne Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) was deployed in June 2010 in response to the Deepwater Horizon oil spill in the Gulf of Mexico. UAVSAR is a fully polarimetric L-band Synthetic Aperture Radar (SAR) sensor for obtaining data at high spatial resolutions. Starting a month prior to the UAVSAR collections...
Authors
Elijah Ramsey, Amina Rangoonwala, Yukihiro Suzuoki, Cathleen E. Jones
Monitoring coastal inundation with Synthetic Aperture Radar satellite data
Maps representing the presence and absence of surface inundation in the Louisiana coastal zone were created from available satellite scenes acquired by the Japanese Aerospace Exploration Agency's Advanced Land Observing Satellite and by the European Space Agency's Envisat from late 2006 through summer 2009. Detection of aboveground surface flooding relied on the well-documented and...
Authors
Yukihiro Suzuoki, Amina Rangoonwala, Elijah Ramsey
Monitoring duration and extent of storm-surge and flooding in Western Coastal Louisiana marshes with Envisat ASAR data
Inundation maps of coastal marshes in western Louisiana were created with multitemporal Envisat Advanced Synthetic Aperture (ASAR) scenes collected before and during the three months after Hurricane Rita landfall in September 2005. Corroborated by inland water-levels, 7 days after landfall, 48% of coastal estuarine and palustrine marshes remained inundated by storm-surge waters. Forty...
Authors
Elijah Ramsey, Zhong Lu, Yukihiro Suzuoki, Amina Rangoonwala, Dirk Werle
Daily MODIS data trends of hurricane-induced forest impact and early recovery
We studied the use of daily satellite data from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensors to assess wetland forest damage and recovery from Hurricane Katrina (29 August 2005 landfall). Processed MODIS daily vegetation index (VI) trends were consistent with previously determined impact and recovery patterns provided by the "snapshot" 25 m Landsat Thematic Mapper...
Authors
Elijah Ramsey, Joseph P. Spruce, Amina Rangoonwala, Yukihiro Suzuoki, James L. Smoot, Jerry Gasser, Terri Bannister
Mapping the onset and progression of marsh dieback
Along the Gulf of Mexico (GOM) coasts, vast wetlands inject valuable nutrients and suspended and dissolved materials into the coastal ocean. Juncus roemerianus (black needlerush) wetlands, dominating coastlines in the northeastern GOM, transition to the Spartina alternifl ora (smooth cordgrass) coastline of Louisiana. Mixed marsh and mangrove barrier island systems occupy the...
Authors
Elijah Ramsey, Amina Rangoonwala
Satellite optical and radar data used to track wetland forest impact and short-term recovery from Hurricane Katrina
Satellite Landsat Thematic Mapper (TM) and RADARSAT-1 (radar) satellite image data collected before and after the landfall of Hurricane Katrina in the Pearl River Wildlife Management Area on the Louisiana-Mississippi border, USA, were applied to the study of forested wetland impact and recovery. We documented the overall similarity in the radar and optical satellite mapping of impact and...
Authors
Elijah Ramsey, Amina Rangoonwala, Beth A Middleton, Z. Lu