ARM

Category: Data Announcements

  • New MICROBASE Ensemble Data Set Available

    Height-time plots for 30-minute ensemble means and standard deviations of liquid effective radius from the MICROBASEEN data set. 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…

  • Navigation Best Estimate Value-Added Product Released

    The measured pitch of the ship is shown here for the twelfth return trip from Honolulu to Los Angeles, also known as MAGIC Leg 12B. 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,…

  • AmeriFlux and Methane Evaluation VAP Now Available for Barrow Data

    This image shows methane fluxes (nmol m-2 s-1) versus day of the year for early 2014.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…

  • New and Improved Ceilometer Datastream Available

    First cloud base height data are shown above at the various heights at which cloud base height is detected. Using quality control variables, missing data are shown in red for all of 2010.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…

  • New MICROARSCL Evaluation Data Released for Barrow, Alaska

    Four of the roughly 30 variables provided by MICROARSCL are shown here for February 13, 2012, in 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…

  • An Update of WACR-ARSCL: Evaluation VAP Data Available

    A data plot example is shown here from Hyytiälä, Finland, for July 1, 2014. 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…

  • 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…

  • 2D Best Estimate Data Sets From MC3E Now Available

    Data sets for the ARM Best Estimate 2-Dimensional Grid (ARMBE2DGRID) and Station-based Surface (ARMBESTNS) are now available for the Midlatitude Continental Convective Clouds Experiment (MC3E) period, which occurred during April to June 2011. The primary goal of these two data sets is to provide 2-dimensional (2D) spatial data of important surface variables to facilitate studies…

  • Large-Scale Forcing Data from the R/V Roger Revelle

    Constrained variational analysis forcing data centered at the R/V Roger Revelle are now available for the Dynamics of the Madden-Julian Oscillation (DYNAMO) and the ARM Madden-Julian Oscillation [MJO] Investigation Experiment [AMIE] on Gan Island, or AMIE-Gan field campaign. Due to the lack of a sounding array on the Revelle, these forcing data were developed based…

  • High-Vertical Resolution Soundings Available for SGP and NSA

    The ARM External Data Center (XDC) now provides atmospheric soundings—vertical measurements of the atmospheric column—in 1-second resolutions collected by the National Weather Service (NWS) in netCDF format to the ARM Data Archive. Quality control is added by the University Corporation for Atmospheric Research. These weather balloon soundings record temperature, pressure, altitude, humidity, and winds for…