ARM

Category: Data Announcements

  • Moving on Up: Merged Sounding Data Now a Value-Added Product

    Examples of relative humidity for SGP, NSA, and TWP-Darwin. The Merged Sounding evaluation product has moved into the ARM Data Archive as a value-added product (VAP). This Merged Sounding VAP, initially designed by Dr. Gerald Mace, was modified by software developer David Troyan under the scientific direction of Michael Jensen to better serve the ARM…

  • New Aerosol Best-Estimate Data Available as Value-Added Product

    Quicklook plots of monthly time series are generated for column AOD, vertical profiles up to 4 km of SSA and g, and for the corresponding RH profile. The optical properties are shown for the nominal green wavelength of 500 nm. The Aerosol Best Estimate (ABE) value-added product (VAP) provides best-estimate time series of total column…

  • Help Us Help You; ARM Data Survey Available Now

    We still need your feedback! The ARM Data Archive stores more than 2000 types of datastreams and there are many ways to find and order the data. To help us understand how you interact with ARM data, please to take a few minutes and fill out the ARM Data User Satisfaction Survey.

  • Five Years of Radiatively Important Parameters Best Estimate (RIPBE) Data Now Available

    Scientists use detailed state-of-the art radiative transfer models to understand the radiative impact of clouds and aerosols on the Earth’s radiation budget, evaluate remote-sensing retrievals of cloud and aerosol properties, and develop and evaluate simpler radiative transfer models for inclusion in cloud and climate models. The ARM suite of instruments measures all of the radiatively…

  • It’s Official Now—Cloud Microphysical Properties Value-Added Product Changes Status

    The Continuous Baseline Microphysical Retrieval (MICROBASE) value-added product (VAP) has been released as an official ARM VAP. Data from April 1998 through December 2009 are now available for the Southern Great Plains, North Slope of Alaska, and Tropical Western Pacific sites. Historical updates will be provided whenever additional data become available.This sample quicklook plot shows…

  • Mapping for Precipitation Radar Data Ready for Evaluation

    These images of MMCG data show three perspectives (slices) of corrected CSAPR reflectivity from a fixed location: (top) horizontal slice at a constant altitude; (middle) vertical slice along a constant longitude; (bottom) vertical slice along a constant latitude.The first-ever 4-dimensional ARM data product, called Mapped Moments to a Cartesian Grid (MMCG), is now available for…

  • Aerosol Optical Depth Measurements Available as Value-Added Product

    Cloud-screened AOD at five wavelengths (top) and Angstrom exponent (bottom) over a three-month time period at the Black Forest, Germany deployment. Aerosol optical depth (AOD) measures total aerosol burden in the atmosphere. The spectral dependence of AOD, typically described by the Angstrom exponent, is also an indicator of particle size. Small Angstrom exponent values (near…

  • Raman Lidar Data Product Suite Provides Best-Estimate Data

    Example of plots produced by the Raman lidar best-estimate VAP for April 3, 2011. Panels (a), (b), and (c) show time-height cross-sections of relative humidity, aerosol backscatter coefficient, and aerosol depolarization. A time series of aerosol optical depth is shown in panel (d). Click to view full-size image. Science data products derived from the Raman…

  • ARM Cloud Retrieval Ensemble Data Set Available for Evaluation

    Multiple long-term cloud retrievals are now available for five ARM sites in the ACRED data set. A new ARM evaluation product, the ARM Cloud Retrieval Ensemble Data Set (ACRED), is now available for testing by the science community. ACRED was developed with the motivation to provide a rough estimate of the uncertainties in current retrieved…

  • New Surface Spectral Albedo VAP Provides Surface Type Observations at Southern Great Plains

    Example quicklook from the SURFSPECALB VAP. The plot shows the estimated spectral albedo at SGP for the 10-m and 25-m towers on September 11, 2004. On this day, the surface type for both towers is partial vegetation. The Surface Spectral Albedo (SURFSPECALB) value-added product (VAP) has been released for operational production at the Southern Great…