Wide World of SPoRT Blog
Navajo River Fire Impacts Northwestern NM
Wednesday, 2 September 2015
Large wildfires during the heart of the southwest monsoon season are a fairly rare occurrence most years. Lightning sparked fires are typical in late June and early July before mainly dry thunderstorms transition to a wetter variety. These fires can be managed by land agencies while awaiting higher humidities to develop over the area. July 2015 was a very wet month for much of New Mexico (10th wettest July), with the exception of northwestern New Mexico where near normal precipitation was observed. August turned much drier for many areas of the state as monsoon moisture and instability focused over Arizona. On August 19th, the Navajo River Fire broke out northwest of Dulce, NM, quickly growing to more than 1,000 acres by the 20th. The NASA SPoRT 0-10cm relative soil moisture imagery showed dry conditions coinciding with this same area of northwestern NM.
Improving the representation of snow crystal properties within a single-moment microphysics scheme
Single-moment microphysics schemes are utilized in an increasing number of applications and are widely available within numerical modeling packages, often executed in near real-time to aid in the issuance of weather forecasts and advisories. In order to simulate cloud microphysical and precipitation processes, a number of assumptions are made within these schemes. Snow crystals are often assumed to be spherical and of uniform density, and their size distribution intercept may be fixed to simplify calculation of the remaining parameters.
Image of the Day
(click to enlarge)
The MODIS-GOES Hybrid imagery allows for much better detail of cloud structures (besides other non-cloud features), especially during the warm season when large-scale cloud cover is less likely. However, even during times of widespread cloud cover, added detail can be displayed and thus be more apparent to the user. Two images are presented here. The first is the standard GOES IR image (left) at 0815 UTC from 15 April 2011. Note that there are no green pixels and the coldest temperature is -71°C. However, when the MODIS data are inserted to create the Hybrid IR image (right) for roughly the same time, a wide area of green pixels of different shadings appear, ranging from -72 to -78°C. The higher MODIS resolution allows one to detect additional features that can be important in determining changes in intensity of convection.
Ingest and Product Status Pages
Though we're not 24/7, SPoRT strives to provide the most timely and reliable data products to its partners and end users. A system has been developed to monitor the health of our real-time data ingest and availability of LDM and FTP products. Summaries are posted every 10 minutes to the links below.