In preparation for the upcoming Carbonaceous Aerosol and Radiative Effects Study (CARES) in California, the ARM Aerial Facility is putting the finishing touches on research equipment upgrades to the Gulfstream-159, or G-1 aircraft. Over the winter, AAF staff began installing a number of new instruments and associated hardware and data systems, thanks in large [...]

A new addition to the Climate Modeling Best Estimate (CBME) data set has been released, comprising a statistical summary of the CMBE data. It includes both monthly mean and monthly mean diurnal cycle and their climatologies for all the geophysical quantities contained in the CMBE data sets. The CMBE data set is specifically tailored [...]

The U.S. Department of Energy’s Office of Science is now accepting applications for Office of Biological and Environmental Research (BER) research grants for the development of innovative laboratory and observational data analyses through the Atmospheric System Research program.

The ARM Southern Great Plains (SGP) site has historically operated a Central Facility, 23 extended facilities, 4 boundary facilities, and 3 intermediate facilities throughout its considerable domain. Beginning in October 2009, the SGP began a transition to a smaller, denser footprint (150 km x 150 km) by rearranging the original instrumentation and making accommodations for [...]

To create visibility for scientific user facilities, the National User Facility Organization, or NUFO, hosted an exhibit at the 2010 American Physical Society/American Association of Physics Teachers meeting in Washington, D.C. from February 13-15. The two organizations are member societies within the American Institute of Physics. Under the theme “Physics for the Nation’s Future” the [...]

In the tropics, upper-level clouds containing ice and mixtures of ice and liquid water strongly affect the transfer of radiation through the atmosphere. A large proportion of these clouds are associated with deep convection, which generates and lifts hydrometeors to upper levels. Systems of deep convection that are larger than ~100 km in dimension [...]

Argonne National Laboratory seeks a distinguished scientist to lead a major expansion in its research and modeling efforts in computational climate science, with a focus on developing the scientific and technological capabilities required for regional climate prediction. The selected candidate will lead the development of Argonne's research efforts in computational climate science in the areas [...]

This study introduces a new approach to characterize small-scale humidity variations using ground-based microwave radiometry. For that purpose, a microwave profiler routinely performed different scan patterns during its deployment at the ARM Mobile Facility in the Black Forest, Germany. Individual azimuth scans at 30° elevation revealed spatial variations in integrated water vapor up to ± [...]

Over 3200 scientists from academia, government, and private organizations participated in the 90th Annual Meeting of the American Meteorological Society at the Georgia World Congress Center in Atlanta, January 18-21. This year's meeting offered 1200 presentations and 600 posters focused on the theme of "Weather, Climate, and Society: New Demands on Science and Services," many [...]

CAWCR is seeking a scientist to undertake research on the evolution of tropical cloud systems using a combination of polarimetric weather radar, cloud radar and other instruments. Particular areas of interest include the factors controlling the evolution of these cloud systems and their interaction with the large scale as well as using these data [...]

The Cooperative Institute for Mesoscale Meteorological Studies at the University of Oklahoma seeks one or two Master’s Degree-level scientists with strong attention to detail and good computer skills to join the U.S. Department of Energy’s (DOE) Atmospheric Radiation Measurement (ARM) Climate Research Facility Data Quality (DQ) Office. The DQ Office supports the needs of the [...]

Pacific Northwest National Laboratory is looking for a modeler to work with WRF-Chem to investigate aerosol-cloud interactions for maritime clouds. In particular, using the background meteorology of the VOCALS field campaign to investigate the impact of emissions on maritime cloud development for scales ranging from climate model to cloud-resolving resolutions. The Weather Research and Forecasting (WRF) [...]

Argonne National Laboratory is seeking an Assistant Site Manager for the ARM Southern Great Plains (SGP) site in Oklahoma and Kansas. The Assistant Site Manager helps with the operation of a DOE national user facility site, including overseeing subcontracts; developing operating budgets; producing cost estimates for users conducting research experiments at SGP; evaluating [...]

In late January, meteorologists from a dozen major news markets across the country gathered in Steamboat Springs, Colorado, for an annual event called the “Weather Summit” where they received a preview of the Storm Peak Lab Cloud Property Validation Experiment, or STORMVEX, field campaign scheduled to begin next fall. Meanwhile, down the hall, the [...]

Observed tropical convections are typically organized as intraseasonal oscillations (about 30-80 day periods) throughout the equatorial zone, the so-called Madden-Julian Oscillation (MJO). The most common feature of the MJO is that it weakens over the Maritime Continent and grows back to about full strength towards the Tropical Western Pacific (TWP), and then propagates to the [...]

Near the tip of Australia’s Northern Territory, Gunn Point is the location for the Darwin ARM Representativeness Experiment, or DARE. This offsite field campaign is obtaining measurements of solar and thermal energy and cloud properties, to compare against similar measurements collected at the permanent ARM site in Darwin, about 25 kilometers to the southwest of [...]

Scientists from around the world use data from the U.S. Department of Energy’s Atmospheric Radiation Measurement (ARM) Climate Research Facility to study the interactions between clouds, aerosol, and radiation. At this year's meeting of the American Meteorological Society, scientists present results of their research, using ARM data for long-term analyses, model comparisons, and measurement [...]

In the winter of 2007 the Radiative Heating in Underexplored Bands Campaign (RHUBC) was conducted in Barrow, Alaska. The purpose of the campaign was to obtain accurate measurements of radiance in the far-infrared region of the electromagnetic spectrum. Water vapor absorption in this spectral region affects radiative heating and cooling of the upper troposphere; however, [...]

The Climate/Carbon Science Group within the Atmospheric, Earth and Energy Division has an opening for a postdoctoral scientist in the area of cloud property retrievals and validation. The successful candidate will join the Lawrence Livermore National Laboratory (LLNL) ARM data infrastructure team to develop and evaluate a multi-year continuous ensemble cloud microphysical properties data set [...]

Anna C. Palmisano, PhD, Associate Director of Science for Biological and Environmental Research (BER), Office of Science, U.S. Department of Energy, has requested nominations for Director of Climate and Environmental Sciences. She is accepting nominations (self-nominations also) via email until January 20, 2010. However, applications will be accepted until February 23, 2010. The division director [...]

In June 2010, the 15th International Symposium for the Advancement of Boundary Layer Remote Sensing (ISARS 2010) will be hosted by Institut Pierre Simon Laplace (IPSL), Université de Versailles Saint- Quentin-en-Yvelines (UVSQ), and Ecole Polytechnique (X). January 15 is the deadline for abstract submissions. This year's guest speakers are Dr. Michael Ashley, University of New South [...]

On January 4, scientists sponsored by ARM began a five-month aircraft campaign to gather data from cirrus clouds in the skies above Oklahoma. Using an instrumented Learjet 25 research aircraft, their goal is to obtain a new and comprehensive set of in-cloud, or “in situ,” measurements about the size and number of ice crystals that make up cirrus clouds.

The first Science Team Meeting of the Atmospheric System Research (ASR) program will be held March 15-19, 2010, at the Marriott Bethesda North Hotel & Conference Center in Bethesda, Maryland. ASR is a new Department of Energy climate research program formed from the merger of the Atmospheric Radiation Measurement (ARM) Program and the Atmospheric Science [...]

The 2009 American Geophysical Union Fall Meeting in San Francisco once again drew a packed house, with more than 16,000 attendees and a sold-out exhibit area in Moscone South hosting over 200 exhibitors. The Fall Meeting provides an opportunity for researchers, teachers, students, and consultants to present and review the latest issues covering all areas [...]

One of the challenges posed by the study of the Arctic climate is that precipitable water vapor (PWV) and liquid water path (LWP) are extremely low during the winter season, with integrated water vapor amounts almost always less than 5 mm and integrated cloud liquid water amounts of less than 100 g/m2 in the vast [...]