February 9, 2017
Visit the interactive map website: http://science.maps.arcgis.com/apps/MapSeries/index.html?appid=9ef5b5839... The interactive map on the website shows images of areas with fires or floods, taken by NASA's AQUA satellite and the International Space Station (ISS). The United States and Argentina have combined resources to produce a Spanish language website sharing satellite imagery and videos of the recent wildfires in Argentina. The project is a joint effort between Argentina, NASA, the US Department of State and ESRI. CONAE, who uses NASA’s algorithms and data, was the lead satellite organization responding to this disaster. The interactive maps featured on the website show images of areas with fires or floods, taken by NASA's AQUA satellite. Smoke clouds can also be seen to the southwest of Buenos Aires within the movable lens icon, which displays images captured by astronauts on the International Space Station.
February 2, 2017
On January 24, 2017, the Operational Land Imager (OLI) on the Landsat 8 satellite acquired this false-color image of scorched land flanked by actively burning fires. Wildfires continued to ravage Chile’s countryside in early February 2017, weeks after they flared up in mid-January. The blazes have thwarted firefighters’ efforts to control them, with new hot spots emerging daily. Satellite data and scientific analysis suggest the fires are among the worst the country has seen in decades. Since the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite began collecting data in 2002, fires have occurred in a fairly steady, cyclical pattern in Chile, rising during the dry season and falling during wetter months. Between 2003 and 2016, MODIS detected an average of 330 daytime fire hot spots throughout Chile during the month of January. In 2017, the number jumped tenfold. “This is unprecedented from my perspective. The smoke plumes are huge in abundance and altitude,” said Michael Fromm, a meteorologist with the Naval Research Laboratory who has been studying satellite fire data for 15 years. “Fires have gotten much larger and much more energetic than typical for that area.”
January 24, 2017
On January 20, 2017, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite acquired an image of brown smoke billowing from a cluster of fires near the coastal city of Pichilemu. Smoke from dozens of forest fires billowed over central Chile in January 2017. A heat wave, coupled with strong winds, spread the flames on January 20, prompting President Michelle Bachelet to declare a state of emergency in some areas. On January 20, 2017, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite acquired an image of brown smoke billowing from a cluster of fires near the coastal city of Pichilemu. Red outlines indicate areas with heat signatures indicative of active burning. Smoke plumes stretch northward and over the Pacific Ocean. The second, wider view (below), acquired by Terra on January 21, shows fires spread across the region. Far to the north and west, brown smoke hovers over marine clouds.
January 13, 2017
The state of California has been suffering from a multi-year drought that has severely depleted water resources and reservoir levels. Recent winters have failed to produce precipitation and mountain snows to replenish the losses during the dry summers. However, the situation has rapidly changed this winter, particularly in the past week when multiple atmospheric rivers have impacted the state. An atmospheric river is a concentrated channel of deep moisture that is transported from the tropical Pacific Oceanic regions to the West Coast of the United States. These events are often associated with prodigious amounts of rainfall and mountain snows that lead to flooding, mudslides, and avalanches. We have seen such events this past week impact California, especially the central and northern parts of the state. CIRA’s total precipitable water product in Figures 1a and 1b depict two separate atmospheric rivers impinging on central California from 8 and 10 January 2017, respectively. The first wave transported a plume of tropical moisture from the south-southwest, which led to massive rainfall and high snow levels. The second atmospheric river on the 10th was less directly connected to the tropics (coming in from the west-southwest), but nonetheless exhibited a well-focused transport of high moisture content. Widespread flooding and mountain avalanches have resulted from these moisture plumes as the impacted California, as well as dramatic replenishment of reservoirs. Figure 1. CIRA total precipitable water product (inches) valid at (a) 2100 UTC 8 Jan 2017, and (b) 2100 UTC 10 Jan 2017.
January 12, 2017
GPM IMERG precipitation accumulation from 1/7/17 - 1/10/17. Click here to view an animated GIF.
January 12, 2017
Significant amounts of rain in early January have caused significant and widespread flooding in southern Thailand. Learn more about the flood recovery efforts on the Asian Disaster Preparedness Center (ADPC) website Flood Extent from MODIS Aqua / Terra as of 1/12/17. MODIS suface water extent data from 1/12/17. View this data on an interactive map: http://projectmekongnasa.appspot.com/ 7 day precipitation accumulation in Southeast Asia ending on 1/11/17. Data from the Integrated Multi-satellitE Retrievals from GPM (IMERG) Late Run dataset. View and download this data on an interactive map using the PMM Precipitation and Applications Viewer: https://pmm.nasa.gov/precip-apps
January 11, 2017
ARIA Flood Proxy Map for the floods in Northern California and Nevada on January 8th, 2017. Flood Proxy Map (FPM) covering an area of 155-by-224 miles (250-by-360 km), derived from Sentinel-1's pre- (2016-12-15 6 PM PST) and during-the-event (2017-01-08 6 PM PST) Synthetic Aperture Radar (SAR) amplitude images. The colored pixels represent areas of potential flood (Red: flooded vegetation, Blue: open water flood). Different irrigation conditions on the two data acquisition dates can produce errors on agricultural lands. This FPM should be used as guidance to identify potential areas of flooding, and may be less reliable over urban areas or snow cover.
January 11, 2017
California, which has long been suffering through a strong, multi-year drought, is finally beginning to see some much needed relief as a result of a recent series of storms that are part of a weather pattern known as the “Pineapple Express.” The Pineapple Express is known as an atmospheric river. A large, slow-moving low pressure center off of the West Coast taps into tropical moisture originating from as far south as the Hawaiian Islands. This moisture is then channeled northeast by the subtropical jet steam towards the West Coast where the topography aids in squeezing out the moisture as air flows over the mountain ranges. Though these rains are certainly welcome and very much needed, they have also led to flooding and mudslides. The first storm in the series arrived in the middle of last week and brought rain to northern and central California. The next storm occurred over the weekend and brought heavy rains again to mostly northern and central California although southern California also received significant amounts. This event lead to widespread flooding, down trees and mudslides, especially in the Sierra Nevada where hurricane force winds occurred and Interstate 80 was closed due to a massive mudslide. Blizzard, winter storm, high wind, and flood warnings are already in effect as the third plume of moisture in this series is already making its way through the interior part of the state where several feet of snow are expected in the Sierra Nevada. The Tropical Rainfall Measuring Mission satellite (known as TRMM) was launched into service back in November of 1997. It was designed to measure rainfall over the global Tropics using both passive and active sensors, including the first and at the time only precipitation radar in space. With its combination of passive microwave and active radar sensors, TRMM was used to calibrate rainfall estimates from other satellites to expand its coverage. The TRMM-based, near-real time Multi-satellite Precipitation Analysis (TMPA) at the NASA Goddard Space Flight Center has been used to monitor rainfall over the global Tropics for many years. By subtracting the long-term average rainfall or climatology, rainfall anomalies can be constructed to show deviations from the normal pattern.
January 10, 2017
Static MODIS flood maps are available here: http://oas.gsfc.nasa.gov/floodmap/getTile.php?location=130W040N&day=11&year=2017&product=2 Interactive ArcGIS MODIS and Landsat flood maps available here: http://gs6104oasl1.ndc.nasa.gov/arcgis/home/webmap/viewer.html?webmap=bf...
January 9, 2017
Extreme rain events have been affecting California and snow has blanketed the Pacific Northwest. NASA/NOAA's GOES Project created a satellite animation showing the storms affecting the region from January 6 through 9, 2017, and NASA's Aqua satellite captured a look at the snowfall. This visible image of the storm system affecting the U.S. Pacific Coast was taken from NOAA's GOES-West satellite on Jan. 9, 2017 at 8:35 a.m. EST (1345 UTC). Credits: NASA/NOAA GOES Project At NASA's Goddard Space Flight Center in Greenbelt, Maryland, an animation of visible and infrared imagery from NOAA's GOES-West satellite showed a series of moisture-laden storms affecting California from Jan. 6 through Jan. 9, 2017. NOAA manages the GOES series of satellites and the NASA/NOAA GOES Project uses the satellite data to create animations and images. The animation shows a stream of storms affecting the U.S. West coast over that period, as a low pressure area center churned off of Canada's west coast. On January 9, another area of low pressure moved over Oregon, where the National Weather Service is forecasting heavy snows. The Eastern Douglas County Foothills, south central and southern Oregon Cascades, and Siskiyou Mountains were all under a Winter Storm Warning that calls for "6 to 10 inches possible above 3,000 feet and 1 to 2 feet possible above 5,000 feet."