airborne science

NASA has finished its campaign to study extreme rain, snow and winds of the Olympic National Forest. Scientists Walt Petersen of NASA Marshall and Robert Houze of the University of Washington narrate this inside look at the Olympic Mountain Experiment (OLYMPEX) field campaign. During the campaign, NASA and its partners gathered precipitation data through both ground and airborne instruments around the Olympic Peninsula in Washington State. They measured the abundance and variety of precipitation including light rain, heavy thunderstorms, and snowfall in the coastal forest. The data collected...

From November 10 through December 21, NASA and university scientists are taking to the field to study wet winter weather near Seattle, Washington. With weather radars, weather balloons, specialized ground instruments, and NASA's DC-8 flying laboratory, the science team will be verifying rain and snowfall observations made by the Global Precipitation Measurement (GPM) satellite mission on a NASA-led field campaign, The Olympic Mountain Experiment, or OLYMPEX. Rachael Kroodsma is the instrument scientist for the CoSMIR on board NASA's DC-8 airborne laboratory as part of the OLYMPEX field...

Media are invited to go behind the scenes of a comprehensive field campaign focused on yielding new insights into global precipitation at a special event on Nov. 11, 2015. NASA's DC-8 flying laboratory will be featured as part of a special media event on Nov. 11, 2015 focused on the Olympic Mountain Experiment (OLYMPEX), an Earth science campaign aimed at validating Global Precipitation Measurement. Credits: NASA Photo / Carla Thomas Held in collaboration with the University of Washington, NASA's Olympic Mountain Experiment (OLYMPEX) is an Earth science campaign aimed at validating Global...

Three Radars are Better than One Putting three radars on a plane to measure rainfall may seem like overkill. But for the Integrated Precipitation and Hydrology Experiment field campaign in North Carolina recently, more definitely was better. During the field campaign, NASA's ER-2 research aircraft flew out of Robins Air Force Base in Georgia. HIWRAP is under the wing in the black compartment; the Cloud Radar System is under the other wing and is not visible; and the EXRAD radar is in the extended nose cone. Image Credit: NASA / Gerry Heymsfield The three instruments, developed by the High...

In total, 25 events were identified with two events classified as “clear air” flights conducted by the DC-8 to sample land surface emission characteristics. Table 4 summarizes case date and time, event type, and airborne data collection during the field project. Event total SWE amounts represent manual measurements taken by a Tretyakov gauge located inside a DFIR wind shield at CARE. Precipitation types are characterized as rain (R), snow (S), or mixed precipitation that could include ice pellets (R/S). Synoptic context/regime(s) were determined from the daily synopsis produced by the project...