Hurricane Sandy (2012) modeling: Modeling can reveal the contributions from underlying processes individually. These images show contribution from offshore surge (change in water level) and offshore waves to maximum water levels (in meters) within a bay during a coastal storm.
Images
Hurricane Sandy (2012) modeling: Modeling can reveal the contributions from underlying processes individually. These images show contribution from offshore surge (change in water level) and offshore waves to maximum water levels (in meters) within a bay during a coastal storm.
As part of the Remote Sensing of Coastal Change and Florence Supplemental projects we have been developing novel workflows for repeat-mapping of ÂÂÂcoastal environments at order decimeter resolution over up to hundreds of kilometers in a single day, using Structure-from-Motion photogrammetry or SfM, from crewed aerial platforms.
As part of the Remote Sensing of Coastal Change and Florence Supplemental projects we have been developing novel workflows for repeat-mapping of ÂÂÂcoastal environments at order decimeter resolution over up to hundreds of kilometers in a single day, using Structure-from-Motion photogrammetry or SfM, from crewed aerial platforms.
![Map shows 10.3.18 flood event viewer data for Hurricane Florence](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Screen%20Shot%202018-10-03%20at%2010.03.30%20AM.jpg?itok=gJBrAxcj)
This flood event viewer map, dated Oct. 3, 2018, shows the extent and type of information collected by USGS hydrologists in North and South Carolina in the wake of historic flooding brought on by Hurricane Florence.
This flood event viewer map, dated Oct. 3, 2018, shows the extent and type of information collected by USGS hydrologists in North and South Carolina in the wake of historic flooding brought on by Hurricane Florence.
![A hydrographer checks a high water mark on a door frame](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/level%20hwm.jpg?itok=Cd4jtB4H)
USGS hydrographer Daniel McCay uses a level to double-check a high water mark on a church door near Maxton, NC as his USGS colleague Mary Winsor observes on Sept. 25, 2018, in the wake of flooding brought on by Hurricane Florence.
USGS hydrographer Daniel McCay uses a level to double-check a high water mark on a church door near Maxton, NC as his USGS colleague Mary Winsor observes on Sept. 25, 2018, in the wake of flooding brought on by Hurricane Florence.
![A hydrographer marks a high water mark on the eaves of a church](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/roof%20level%20high%20water%20mark%20florence.jpg?itok=vLpgbFMH)
USGS hydrologic technician Rob Forde flags a high water mark above the eaves at Presbyterian Church of the Covenant, 118 Manchester Road, Spring Hill, North Carolina on Sept. 21, 2018, in the wake of flooding brought on by Hurricane Florence.
USGS hydrologic technician Rob Forde flags a high water mark above the eaves at Presbyterian Church of the Covenant, 118 Manchester Road, Spring Hill, North Carolina on Sept. 21, 2018, in the wake of flooding brought on by Hurricane Florence.
USGS hydrographer Kyle Marchman measures a high water mark on the rear wall of a Kangaroo gas station on Highway 24 north of Fayetteville, NC on Sept. 18, 2018, after flooding caused by Hurricane Florence.
USGS hydrographer Kyle Marchman measures a high water mark on the rear wall of a Kangaroo gas station on Highway 24 north of Fayetteville, NC on Sept. 18, 2018, after flooding caused by Hurricane Florence.
James Stonecypher measures flood waters from the Lumber River that breached a dam in Lumberton, North Carolina after the passage of Hurricane Florence, Sept. 17, 2018.
James Stonecypher measures flood waters from the Lumber River that breached a dam in Lumberton, North Carolina after the passage of Hurricane Florence, Sept. 17, 2018.
![Map of USGS streamgages at or over flood stage in NC Sept. 19, 2018](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Screen%20Shot%202018-09-16%20at%202.50.48%20PM_1.png?itok=MRi3n-wq)
A WaterWatch web map shows streamgages in North and South Carolina that approached or exceeded major flood stage EST on September 19, 2018, as the former Hurricane Florence, now downgraded to a tropical depression, deluged the states with rain.
A WaterWatch web map shows streamgages in North and South Carolina that approached or exceeded major flood stage EST on September 19, 2018, as the former Hurricane Florence, now downgraded to a tropical depression, deluged the states with rain.
![USGS scientist takes measurement in a flooded NC creek](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/stillwell%20discharge%20rhyne%20nc%209.16%20lapolice.jpg?itok=ShWNzxEt)
David Stillwell, USGS hydrologic technician, performs a discharge measurement to help document and forecast flooding caused by Hurricane Florence at Long Creek in Rhyne, North Carolina on Sept. 16.
David Stillwell, USGS hydrologic technician, performs a discharge measurement to help document and forecast flooding caused by Hurricane Florence at Long Creek in Rhyne, North Carolina on Sept. 16.
![This photo shows one of 8 storm sensors deployed in Pennsylvania to monitor the potential effects Hurricane Florence could have](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/SpringCreekHOBO.jpg?itok=ZdSKzU7W)
This photo shows one of 8 storm sensors deployed in Pennsylvania to monitor the potential effects Hurricane Florence could have on already high rivers across the state. Photo by Matthew Gyves, USGS.
This photo shows one of 8 storm sensors deployed in Pennsylvania to monitor the potential effects Hurricane Florence could have on already high rivers across the state. Photo by Matthew Gyves, USGS.
The USGS Coastal Change Hazards Storm Team has forecast coast-wide levels of beach erosion, inundation and overwash due to Hurricane Florence's expected path and landgfall.
The USGS Coastal Change Hazards Storm Team has forecast coast-wide levels of beach erosion, inundation and overwash due to Hurricane Florence's expected path and landgfall.
![Chart shows high water at Duck, NC through Sept. 17](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/TWL_Florence.jpg?itok=ZF_1dWby)
The Coastal Change Hazards Storm Team has forecast changing water levels at specific locations over time.
The Coastal Change Hazards Storm Team has forecast changing water levels at specific locations over time.
A USGS storm-tide sensor, deployed in advance of Hurricane Florence's landfall. The sensors are housed in vented steel pipes a few inches wide and about a foot long. They are being installed on bridges, piers, and other structures that have a good chance of surviving the storm.
A USGS storm-tide sensor, deployed in advance of Hurricane Florence's landfall. The sensors are housed in vented steel pipes a few inches wide and about a foot long. They are being installed on bridges, piers, and other structures that have a good chance of surviving the storm.
A USGS hydrologic scientist installs a storm-tide sensor near the North Carolina coast as Hurricane Florence approaches.
A USGS hydrologic scientist installs a storm-tide sensor near the North Carolina coast as Hurricane Florence approaches.
![This USGS storm-tide sensor was installed Sept. 9 in Dare County, North Carolina, in preparation for Hurricane Florence.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/NCDAR00011_20180909_01_0.jpg?itok=jCgRu52t)
This USGS storm-tide sensor was installed Sept. 9 in Dare County, North Carolina, in preparation for Hurricane Florence. Photo by Steve Harden, USGS.
This USGS storm-tide sensor was installed Sept. 9 in Dare County, North Carolina, in preparation for Hurricane Florence. Photo by Steve Harden, USGS.