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New MICROBASE Ensemble Data Set Available
A new data set of ensemble cloud retrievals from the March 2000 intensive observational period at the Southern Great Plains Central Facility is now available in the ARM Data Archive evaluation area. The new data set uses the baseline cloud microphysical algorithm, known as MICROBASE, along with a variance-based method that varies the empirical parameters…
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Navigation Best Estimate Value-Added Product Released
Developed in response to the first ship-based deployment of the second ARM Mobile Facility (AMF2), the Navigation Best Estimate (NAVBE) Value-Added Product (VAP) has been released for evaluation. Meteorological, cloud, and aerosol measurements were collected during nearly 20 round trips of the container ship, Horizon Spirit, between Los Angeles, CA, and Honolulu, HI, from September…
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AmeriFlux and Methane Evaluation VAP Now Available for Barrow Data
Greenhouse gases (GHGs) are suspected to be key drivers of global climate change. As Arctic permafrost melts, it unlocks stored carbon, which may contribute to large increases in the atmospheric mixing ratios of these gases. Understanding the rates and controlling mechanisms of these releases is of great importance for climate prediction and modeling. The ARM…
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Darwin Site Operations Come to an End
The third Tropical Western Pacific (TWP) site for the ARM Climate Research Facility was established in 2002 in Darwin, Australia. After twelve and a half years of collecting data, the site closed on December 31, 2014. Data from Darwin were particularly of interest because of its three distinctive climate patterns: A dry continental regime from about…
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Nature Article: Carbon Dioxide’s Greenhouse Effect at Earth’s Surface Confirmed Using ARM Data
Scientists have for the first time observed an increase in carbon dioxide’s greenhouse effect at the Earth’s surface. The research, conducted using data and data products from the Atmospheric Radiation Measurement (ARM) Climate Research Facility, is reported Wednesday, February 25, in the advance online publication of the journal Nature.
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North Slope Megasite Preparations Take Form
This fall, the installation of the third ARM Mobile Facility was completed at Oliktok Point, Alaska, with the addition of scanning and vertical-pointing radars, as well as a Raman lidar. With 4 years remaining as planned in the extended deployment at Oliktok, the first year of data collections was completed on September 30, 2014.
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ASR Makes Awards to Two Teams for Science at the New ARM Sites
The U.S. Department of Energy’s Office of Science has awarded two Office of Biological and Environmental Research (BER) grants for under-represented research within the Atmospheric System Research (ASR) program. The grants support the Atmospheric Radiation Measurement (ARM) Climate Research Facility’s recently established fixed site in the Azores, known as the Eastern North Atlantic (ENA), and…
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New and Improved Ceilometer Datastream Available
Recently, the datastream for the ceilometer instrument for all sites were reprocessed. This end-to-end reprocessing task corrected a couple of problems in the formatting of CEIL data and resulted in a new datastream name. First, the “V” in VCEIL was dropped because it represented the name of the vendor. New data standards for ARM require…
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New MICROARSCL Evaluation Data Released for Barrow, Alaska
A new evaluation release of 18 months of data from Barrow, Alaska, provides the first KAZR-based Micro-Active Remote Sensing of Clouds (MICROARSCL) data from this North Slope of Alaska (NSA) site. The addition of the KAZR data to the NSA site adds temporal and spatial resolution relative to the retired millimeter wavelength cloud radar (MMCR).…
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An Update of WACR-ARSCL: Evaluation VAP Data Available
New data sets from the 95 GHz W-band ARM Cloud Radar-Active Remote Sensing of Clouds (WACR-ARSCL) are now available for download as an evaluation value-added product (VAP) for the ARM Mobile Facility (AMF) deployments in Hyytiälä, Finland, from February through September 2014, and Manacapuru, Brazil, from January through December 2014. Evaluation data have been previously…