What’s Going On?
++Important TIRS calibration notice from USGS, Jan. 6, 2014: “Due to the larger calibration uncertainty associated with TIRS band 11, it is recommended that users refrain from relying on band 11 data in quantitative analysis of the TIRS data, such as the use of split window techniques for atmospheric correction and retrieval of surface temperature values.”
We suggest that Band 10 be used in conjunction with an atmospheric model to estimate surface brightness temperature. Our calibration team has found that with current processing these surface brightness temperatures are accurate to within ~±1 K for many 15 – 35° C targets, e.g., growing season vegetated targets.
For more details, please visit the Landsat 8 Data Users Handbook
As millions of people regroup from the impact of the earthquakes in Nepal, a team of international volunteers are combing through satellite imagery of the region to identify additional hazards—earthquake-induced landslides.
The magnitude 7.8 Gorkha earthquake that struck Nepal on April 25, 2015, caused extensive damage in Kathmandu Valley and severely affected Nepal’s rural areas.
A pulse of water released down the Colorado River’s lower reaches produced about a 40 percent increase in green vegetation where the water flowed.
On Feb. 11, 2013, the Landsat 8 satellite rocketed into a sunny California morning onboard a powerful Atlas V and began its life in orbit. In the year since launch, scientists have been working to understand the information the satellite has been sending back.
Turning on new satellite instruments is like opening new eyes. On March 21, LDCM released its first images of Earth.
The United Launch Alliance (ULA) Atlas V rocket with the Landsat Data Continuity Mission (LDCM) spacecraft onboard is seen on Sunday, Feb. 10, 2013 at Vandenberg Air Force Base, Calif. The Landsat Data Continuity Mission (LDCM) mission is a collaboration between NASA and the U.S. Geological Survey.
The United Launch Alliance (ULA) Atlas-V rocket with the Landsat Data Continuity Mission (LDCM) spacecraft onboard is seen as it launches on Monday, Feb. 11, 2013 at Vandenberg Air Force Base, Calif. The Landsat Data Continuity Mission (LDCM) mission is a collaboration between NASA and the U.S. Geological Survey.