Earthquakes today

Current and latest world earthquakes breaking news, activity and articles today

Geological news

Unmanned Flights Will Monitor Bank Erosion on the Lower Brule Reservation


Unmanned Flights Will Monitor Bank Erosion on the Lower Brule Reservation

Unmanned Aerial Systems (UAS), will be used August 21-23 to monitor Missouri River bank erosion on the Lower Brule Reservation, S.D.

 

The flights, conducted for a second time by the U.S. Geological Survey in cooperation with the Lower Brule Sioux Tribe Environmental Protection Office, will occur along a 7-mile stretch of Missouri River shoreline near the community of Lower Brule, S.D.

 

The Lower Brule Sioux Tribe estimates that the Reservation is losing approximately 8 feet of shoreline per year in some locations, and this 2-year study will monitor such physical changes along the river bank. The first round of flights was conducted in August 2011.

“Results from this effort will be analyzed to investigate the location and severity of erosion, and the lasting impacts of cultural and environmental losses,” said USGS scientist Kathy Neitzert. “Results from the 2012 flights can be directly compared to the 2011 flight results to monitor erosion. The Lower Brule Sioux Tribe will use the results to gather highly accurate baseline data on the shoreline.”

The UAS flights will be used as a surveillance tool to capture video and still pictures of changes in bank erosion at the study area. The 7-mile stretch of shoreline was chosen for study because of the high rate of bank loss in that area. The base of flight operations will be located on shore, and the flight path will follow the shoreline over shallow water.  

For more information on water resources in South Dakota, visit the USGS South Dakota Water Science Center website.

For more information on USGS UAS efforts, visit http://rmgsc.cr.usgs.gov/UAS/.

USGS provides science for a changing world. Visit USGS.gov, and follow us on Twitter @USGS and our other social media channels. Subscribe to our news releases via e-mail, RSS or Twitter.

 

###

USGS Newsroom


More information

Parameter Value Description
Magnitude mb The magnitude for the event.
Longitude ° East Decimal degrees longitude. Negative values for western longitudes.
Latitude ° North Decimal degrees latitude. Negative values for southern latitudes.
Depth km Depth of the event in kilometers.
Place Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 1970-01-01 00:00:00 Time when the event occurred. UTC/GMT
Updated 1970-01-01 00:00:00 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status Indicates whether the event has been reviewed by a human.
Tsunami This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG A number describing how significant the event is. Larger numbers indicate a more significant event.
Network The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type The method or algorithm used to calculate the preferred magnitude for the event.
Event Type Type of seismic event.
Event ID Id of event.
Event Code An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS A comma-separated list of event ids that are associated to an event.

Leave a Reply