One floodgate on the Morganza Spillway was opened on May 14, 2011. USGS streamflow information is used by the U.S. Army Corps of Engineers to help them make informed flood management decisions.
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One floodgate on the Morganza Spillway was opened on May 14, 2011. USGS streamflow information is used by the U.S. Army Corps of Engineers to help them make informed flood management decisions.
One floodgate on the Morganza Spillway was opened on May 14, 2011. USGS streamflow information is used by the U.S. Army Corps of Engineers to help them make informed flood management decisions.
One floodgate on the Morganza Spillway was opened on May 14, 2011. USGS streamflow information is used by the U.S. Army Corps of Engineers to help them make informed flood management decisions.
A USGS streamgage sits above the spillway, while a temporary streamgage has been installed below the floodgates. USGS streamflow information is used by the U.S. Army Corps of Engineers to help them make informed flood management decisions. One floodgate on the Morganza Spillway was opened on May 14, 2011.
A USGS streamgage sits above the spillway, while a temporary streamgage has been installed below the floodgates. USGS streamflow information is used by the U.S. Army Corps of Engineers to help them make informed flood management decisions. One floodgate on the Morganza Spillway was opened on May 14, 2011.
Floodwaters rise upstream of the Bonnet Carre Spillway near Norco, La. The Army Corps of Engineers uses USGS streamflow data to help them manage flood control structures.
Floodwaters rise upstream of the Bonnet Carre Spillway near Norco, La. The Army Corps of Engineers uses USGS streamflow data to help them manage flood control structures.
Floodgates were opened on the Bonnet Carre Spillway near Norco, La. The Army Corps of Engineers uses USGS streamflow data to help them manage flood control structures.
Floodgates were opened on the Bonnet Carre Spillway near Norco, La. The Army Corps of Engineers uses USGS streamflow data to help them manage flood control structures.
USGS scientists take streamflow and water quality measurements downstream of the Bonnet Carre Spillway near Norco, La. The Army Corps of Engineers uses USGS streamflow data to help them manage flood control structures.
USGS scientists take streamflow and water quality measurements downstream of the Bonnet Carre Spillway near Norco, La. The Army Corps of Engineers uses USGS streamflow data to help them manage flood control structures.
USGS scientists take streamflow and water quality measurements downstream of the Bonnet Carre Spillway near Norco, La. The Army Corps of Engineers uses USGS streamflow data to help them manage flood control structures.
USGS scientists take streamflow and water quality measurements downstream of the Bonnet Carre Spillway near Norco, La. The Army Corps of Engineers uses USGS streamflow data to help them manage flood control structures.
USGS scientists Todd Baumann and Errol Meche install a temporary streamgage to measure water levels above and below the the Morganza Spillway. USGS streamflow information is used by the U.S. Army Corps of Engineers to help them make informed flood management decisions. One floodgate on the Morganza Spillway was opened on May 14, 2011.
USGS scientists Todd Baumann and Errol Meche install a temporary streamgage to measure water levels above and below the the Morganza Spillway. USGS streamflow information is used by the U.S. Army Corps of Engineers to help them make informed flood management decisions. One floodgate on the Morganza Spillway was opened on May 14, 2011.
Major General Michael Walsh, president of the Mississippi River Commission, announces that one floodgate on the Morganza Spillway will open at 3pm on May, 14, 2011. USGS streamflow information is used by the U.S. Army Corps of Engineers to help them make informed flood management decisions.
Major General Michael Walsh, president of the Mississippi River Commission, announces that one floodgate on the Morganza Spillway will open at 3pm on May, 14, 2011. USGS streamflow information is used by the U.S. Army Corps of Engineers to help them make informed flood management decisions.
USGS scientist Garron Ross is interviewed by CCTV reporters about USGS streamflow information. USGS streamflow information is used by the U.S. Army Corps of Engineers to help them make informed flood management decisions.
USGS scientist Garron Ross is interviewed by CCTV reporters about USGS streamflow information. USGS streamflow information is used by the U.S. Army Corps of Engineers to help them make informed flood management decisions.
One floodgate on the Morganza Spillway was opened on May 14, 2011. USGS streamflow information is used by the U.S. Army Corps of Engineers to help them make informed flood management decisions.
One floodgate on the Morganza Spillway was opened on May 14, 2011. USGS streamflow information is used by the U.S. Army Corps of Engineers to help them make informed flood management decisions.
USGS scientist Cindy Sibley looks at the rising waters on the Atchafalaya River Basin near Melville, La.
USGS scientist Cindy Sibley looks at the rising waters on the Atchafalaya River Basin near Melville, La.
USGS scientists Cindy Sibley and Mike Descant calibrate the water quality monitor on the Atchafalaya River Basin near Melville, La.
USGS scientists Cindy Sibley and Mike Descant calibrate the water quality monitor on the Atchafalaya River Basin near Melville, La.
USGS scientist Cindy Sibley prepares to take a water quality measurment on the Atchafalaya River Basin near Melville, La.
USGS scientist Cindy Sibley prepares to take a water quality measurment on the Atchafalaya River Basin near Melville, La.
USGS scientist Cindy Sibley prepares to take a water quality measurment on the Atchafalaya River Basin near Melville, La.
USGS scientist Cindy Sibley prepares to take a water quality measurment on the Atchafalaya River Basin near Melville, La.
A complex configuration has been in place deep within the vent cavity in Halema`uma`u crater. Lava upwells in the west portion of the vent floor (upper left of photograph), feeding the small, crusted, circular lava lake.
A complex configuration has been in place deep within the vent cavity in Halema`uma`u crater. Lava upwells in the west portion of the vent floor (upper left of photograph), feeding the small, crusted, circular lava lake.
![A close-up of the swiftly moving lava stream, plunging into the lav...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img1685.jpg?itok=r-OQysxP)
A close-up of the swiftly moving lava stream, plunging into the lava lake.
A close-up of the swiftly moving lava stream, plunging into the lava lake.
![A petrologist explains Kīlauea's eruptive condition...](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/vhp_img2844.jpg?itok=b1dazyCD)
The western Kamoamoa fountain-fed lava flows advanced over 1997 lavas (dark flow in foreground) with 1965 and 1968 lavas buried by Pu‘u ‘Ō‘ō cinder to the far left. Pu‘u ‘Ō‘ō is in the distant background.
The western Kamoamoa fountain-fed lava flows advanced over 1997 lavas (dark flow in foreground) with 1965 and 1968 lavas buried by Pu‘u ‘Ō‘ō cinder to the far left. Pu‘u ‘Ō‘ō is in the distant background.
USGS scientists Mike Descant and Cindy Sibley take water quality measurements on the Atchafalaya River Basin near Melville, La.
USGS scientists Mike Descant and Cindy Sibley take water quality measurements on the Atchafalaya River Basin near Melville, La.
USGS scientists Mike Descant and Cindy Sibley take water quality measurements on the Atchafalaya River Basin near Melville, La.
USGS scientists Mike Descant and Cindy Sibley take water quality measurements on the Atchafalaya River Basin near Melville, La.
USGS scientist Mike Descant takes water quality measurements on the Atchafalaya River Basin near Melville, La.
USGS scientist Mike Descant takes water quality measurements on the Atchafalaya River Basin near Melville, La.