ARM

Category: Data Announcements

  • Unique Manus Island Precipitation Data Available

    Statistical coverage product from the Manus C-SAPR showing times of data availability. Click to enlarge. Evaluation data are available for the value-added product (VAP) Mapped Moments to a Cartesian Grid (MMCG) for periods between October and December 2011 from the Tropical Western Pacific Manus site. The C-band Scanning ARM Precipitation Radar (C-SAPR) produces measurements of…

  • New Evaluation Product Provides Thermodynamic Variables from Multiple Instruments

    INTERPSONDE output from the SGP Central Facility during the Midlatitude Continental Convective Clouds Experiment from April 26, 2011. The Interpolated Sonde (INTERPSONDE) value-added product (VAP) is an intermediate step of the MERGESONDE VAP that produces a daily file of atmospheric state variables (temperature, humidity, pressure, and winds) from radiosonde soundings, the microwave radiometer, and surface…

  • Aerosol Optical Depth Measurements Available as Value-Added Product

    These two images show data plots of cloud-screened AOD at the AMF site in China collected on a 20-second interval during daylight hours. These two days show drastically different aerosol optical depths.Aerosol optical depth (AOD) is a measure of the total aerosol burden in the atmosphere. The spectral dependence of AOD, typically described by the…

  • 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…