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Play Us a Sad Song: Longtime ARM Manager Paul Ortega Retires
Colleagues share their parting words Editor’s note: Kirsten Shaw Fox, communications and external affairs at Los Alamos National Laboratory in New Mexico, sent in this post. Paul Ortega removes C-Band Scanning ARM Precipitation Radar panels from the Tropical Western Pacific site on Manus Island, Papua New Guinea. Photos are courtesy of Los Alamos National Laboratory…
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For Careful, Comprehensive COMBLE, It’s a Wrap
After six months of collecting data on cold-air outbreaks in northern Norway, elated scientists are ready to wrestle with the data The first ARM Mobile Facility (AMF1), the chief instrument platform during the Cold-Air Outbreaks in the Marine Boundary Layer Experiment (COMBLE), was sited right on the Norwegian Sea. Photo is by David Oaks, ARM.…
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Polarstern Returns to the MOSAiC Floe
New team continues fieldwork in the Arctic Members of the first team on the MOSAiC floe during Leg 4 are, from left to right, Lianna Nixon, Julia Regnery, Amy Macfarlane, and Delphin Ruche. Photos are by Lisa Grosfeld, Alfred Wegener Institute. From the Alfred Wegener Institute: After a month’s absence, on 17 June the German…
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ARM Nimbly Handles Change in MOSAiC Plans
Instruments gathered data on icebreaker while it was away from the ice The R/V Polarstern (left) helps carry out the crew exchange and supply delivery for MOSAiC Leg 4 in early June 2020 near Svalbard, Norway. Photo is by Leonard Magerl, Alfred Wegener Institute. Even out of the ice, the Atmospheric Radiation Measurement (ARM) user facility…
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Hopping Continents in the Name of Atmospheric Science
ARM Mobile Facilities continue to collect valuable data 15 years after first deployment Since 2005, mobile observatories have helped ARM conduct atmospheric research around the world. Take sophisticated scientific instruments and send them around the world in shipping containers to collect atmospheric data in remote locations for months—even years—at a time. This is a signature…
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AMF3 Site Science Team Blog: Just Getting Started
Editor’s note: The U.S. Department of Energy’s (DOE) Biological and Environmental Research program selected a site science team to develop a science plan and initial research project for the upcoming Southeastern U.S. deployment of the third ARM Mobile Facility (AMF3). The team, led by Brookhaven National Laboratory in New York, will provide periodic blog updates…
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Droplet Number Concentration Value-Added Product Now Operational
As aerosol concentration increases, droplet number concentration will increase and droplet size will decrease. Cloud droplet number concentration is an important factor in understanding aerosol-cloud interactions. As aerosol concentration increases, it is expected that droplet number concentration will increase and droplet size will decrease for a given liquid water path. This will greatly affect cloud…
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Microwave Radiometer Retrieval Data Available for AMF Sites
An example plot from the MWRRET VAP for 11/9/2007 at Black Forest, Germany: (top) Brightness temperatures measured by the microwave radiometer (MWR). Orange and blue lines indicate potential measurement spikes due to precipitation; (middle) retrieved precipitable water vapor from the new physical method (blue) and the original statistical method (green); (bottom) retrieved liquid water path…
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Aerosol Data From Pico Observatory Now Part of Value-Added Product
Day with moderate aerosol loading (22 June 2010): AOD at five wavelengths (top) and Angstrom exponent (bottom) at the Pico Observatory site.Aerosol optical depth (AOD) measurements have been provided for the Above-Cloud Radiation Budget field campaign at Pico Observatory, Azores, held in conjunction with the 2010 deployment of the ARM Mobile Facility (AMF) in Graciosa…
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Large-Scale Forcing Data Set for SPARTICUS Available
Precipitation (top) and Omega (bottom) in April 2010 at SGP based on large-scale forcing data for SPARTICUS. A new large-scale forcing data set is now available for the Variational Analysis (VARANAL) value-added product (VAP) using data from the Small Particles in Cirrus (SPARTICUS) field campaign. The constrained variational objective analysis approach described in Zhang and…