Souris River
Jun 28, 2011Landsat Images Reveal Extent of Historic North Dakota Flooding

Jun 28, 2011 • Heavy rains in Canada caused historic flooding in Minot, N.D. Landsat satellite images taken before and during the flooding reveal the water’s extent. The Souris River finally crested on June 26, but not before more than 4,000 homes and hundreds of businesses were flooded. About one-fourth of Minot’s 40,000 residents evacuated […]

Jeff Pedelty
Jun 27, 2011NASA Exceptional Achievement Medal Awarded to LDCM Scientist

Jeff Pedelty, a research scientist representing NASA during the LDCM Operational Land Imager (OLI) build has been selected for NASA’s Exceptional Achievement Medal. The OLI instrument is being built by Ball Aerospace & Technologies Corp. in Boulder, Colorado. Pedelty, a NASA civil servant at the Goddard Space Flight Center in Greenbelt, Maryland, has temporarily relocated […]

Mirrors for the LDCM Operational Land Imager (OLI) Telescope.
Jun 20, 2011LDCM Operational Land Imager (OLI) Telescope

Special Topics: LDCM and LDCM Components The OLI telescope uses a four-mirror compact design. The optics are positioned inside a lightweight, yet highly stable, carbon composite optical bench (i.e., a substrate on which the optics are mounted) that has special features to control undesired stray light (stray light is any light entering the optics from […]

LDCM Thermal Infrared Sensor (TIRS) Cryocooler
Jun 20, 2011The Cryocooler—Part of the LDCM Thermal Infrared Sensor (TIRS)

Special Topics: LDCM and LDCM Components The Cryocooler is like a big refrigerator, except that it cools to cryogenic temperatures (below −150°C, −238°F or 123K). It is responsible for cooling our detectors to 43K (-382F). This is very cold and the temperature at which we must maintain our detectors in order to get optimal thermal […]

Wallow North Fire in east central Arizona
Jun 16, 2011Landsat 5 Satellite Helps Emergency Managers Fight Largest Fire in Arizona History

Contributor: Rob Gutro, NASA Goddard Space Flight Center The largest fire in the history of the state of Arizona continues to burn and emergency managers and responders are using satellite data from a variety of instruments to plan their firefighting containment strategies and mitigation efforts once the fires are out. The Landsat 5 satellite captured […]

Jun 16, 2011Landsat 5 Satellite Sees Mississippi River Floodwaters Lingering

On May 19, 2011, the Mississippi River reached a historic crest at Vicksburg. By early June flooding had receded but water remains high.

Engineer (in a "bunny suit") working on the Scene Select Mechanism of the Thermal Infrared Sensor (TIRS) that will fly on LDCM.
Jun 14, 2011Meet the “Scene Select Mechanism”—Part of the LDCM Thermal Infrared Sensor

Special Topics: LDCM and LDCM Components The Scene Select Mechanism is an apparatus that rotates the LDCM Thermal Infrared Sensor (TIRS) mirror among three scenes: the Earth view (“nadir;” when imaging the Earth), and two calibration views (one of a warm blackbody carried onboard and the other of a deep-space cold view). The Earth view […]

flooding near Vicksburg, MS
Jun 11, 2011Landsat 5 Satellite Sees Mississippi River Floodwaters Lingering

Jun 11, 2011 • In a Landsat 5 satellite image captured June 11, 2011, flooding is still evident both east and west of the Mississippi River near Vicksburg, Miss. Standing water is most apparent, however, in the floodplain between the Yazoo and Mississippi rivers north of Vicksburg. On May 19, 2011, the Mississippi River reached […]

Statue on Haskell's campus
Jun 9, 2011Learning about Landsat In Lawrence, Kansas

Landsat Project Science staff provided a presentation on the Landsat program and the Landsat Data Continuity Mission at the Haskell Indians Nation University in Lawrence, Kansas on Thursday, June 9. The presentation was given to a group of Native American students and their faculty mentors from several tribal colleges. The students and faculty were participating […]

Wallow Fire in Arizona
Jun 9, 2011Arizona Wildfire Sweeps Through Apache National Forest

Source: Jan Nelson, USGS / Rob Gutro, NASA Goddard Space Flight Center The second largest fire in Arizona history, the Wallow Fire is graphically depicted by this Landsat image, taken June 7, which shows burning in the mountains of eastern Arizona near the border with New Mexico. Starting on May 29, winds and hot, dry […]

Sturbridge, MA
Jun 8, 2011Landsat 5 Sees Tornado Track near Sturbridge, Massachusetts

Source: Michon Scott, NASA’s Goddard Space Flight Center On June 1, 2011, a supercell thunderstorm developed over western Massachusetts. The storm produced an EF3 tornado that cut a 39-mile (63-kilometer) track of destruction across southwest and south-central Massachusetts. Not only did the long-lived tornado remain on the ground for many miles, but it also widened […]

LTWG#20 participants
Jun 7, 2011USGS Hosts the 20th Landsat Technical Working Group meeting.

Source: USGS This year’s Landsat Technical Working Group (LTWG#20) meeting was held in Sioux Falls, SD, USA, May 23-27, 2011. Participants from 17 countries, including members of the USGS and NASA Landsat and Landsat Data Continuity Mission (LDCM) Projects, represented 23 U.S. and international ground stations and discussed a wide range of technical topics. Special guest, […]

Jun 6, 2011Landsat Science Team Recompete

Source: Meridith Potts, U.S. Geological Survey The USGS released a presolicitation for the Landsat Science Team recompete on the Federal Business Opportunities website June 6th. The presolicitation explains that the Landsat Science Team will conduct research on issues critical to the success of the LDCM (data acquisition, data calibration, sensor performance, product access and format, […]