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New Precipitation Value-Added Product Released for Laser Disdrometers
Histograms of quantities associated with convective (red) and stratiform (blue) drop size distributions (DSDs) in terms of normalized DSD intercept parameter Nw (a), liquid water content LWC versus rainfall rate R (b), and median drop size D0 versus S-band Reflectivity Factor Z (c). Density is shown on the color scale. Information is adapted from Wang…
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Scanning ARM Cloud Radar-Velocity Azimuth Display Product Released to Production
Horizontal wind speed and direction at cloud level, from SACR-ADV-VAD, are shown for the first seven days of August 2012 at ARM’s Southern Great Plains Central Facility. The Scanning ARM Cloud Radar-Advanced-Velocity Azimuth Display (SACR-ADV-VAD) value-added product, which provides profiles of horizontal wind estimates at cloud level, has moved to production. SACR-ADV-VAD uses radial mean…
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New Radiation Data Quality VAP Release Available for Southern Great Plains Extended Facilities
Radiometers collect data at the ARM Southern Great Plains extended facility E35 at Tryon, Oklahoma. A new level 2 (c2/s2) release of the Data Quality Assessment for ARM Radiation Data (QCRAD) value-added product (VAP) is now available for eight extended facilities at the Atmospheric Radiation Measurement (ARM) user facility’s Southern Great Plains atmospheric observatory. This…
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REVISED: Large-Scale Forcing Data for AMIE-GAN Updated
Analysis domain for Revelle, with diameters of 300 km. The red star denotes the ship location. Editor’s note (October 17, 2019): Large-scale forcing data developed from a constrained variational analysis approach have been reprocessed and made available for the ARM Madden-Julian Oscillation (MJO) Investigation Experiment on Gan Island (AMIE-Gan) in the Maldives. The data use…
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REVISED: GoAmazon Large-Scale Forcing Data Now Available for Years 2014 and 2015
The locations of the GoAmazon sites and the variational analysis domain (red octagon) are shown. The locations of the ARM Mobile Facility and SIPAM radar (at Ponta Pelada airport) are also shown. Editor’s note (October 16, 2019): Updated large-scale forcing data are now available for the first and second intensive operational periods (IOPs) of the…
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REVISED: New Shallow Cumulus VAP Available
These plots provide data about shallow cumulus events at ARM’s SGP Central Facility in June 2017. The top panel shows days with shallow cumulus events. The bottom panel gives more information for up to four events, including whether the event contained overlying cirrus, was not detected because no low clouds were found, missed the length…
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New Radiation Data Quality (QCRAD) VAP Release Available for AWARE Field Campaign
The top plot shows best estimates of global shortwave (GSW) downwelling radiation at McMurdo Station, Antarctica, on January 1, 2016, during the AWARE field campaign. The bottom plot shows quality control (QC) flag values indicating the sources of the best estimates for GSW. The Data Quality Assessment for ARM Radiation Data (QCRAD) value-added product (VAP)…
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Extended ARM Best Estimate Data Sets Available for North Slope of Alaska
The images show ARMBEATM 2-meter temperature (left, unit: K) and 10-meter zonal wind (right, unit: m/s) for ARM’s North Slope of Alaska (NSA) atmospheric observatory in 2017. The Atmospheric Radiation Measurement (ARM) user facility provides tailored datastreams known as ARM Best Estimate (ARMBE) data products for use in the evaluation of global earth system models. Two…
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Continuous Large-Scale Forcing Data for Cloud Modeling From Southern Great Plains Extended to October 2018
The seasonal cycle of Southern Great Plains domain-averaged latent heat (LH) and sensible heat (SH) fluxes is shown by using QCECOR-only (QCECOR), BAEBBR-only (BAEBBR), and both QCECOR and BAEBBR data (merged) averaged from 2004 to 2015, and the impact to the derived large-scale vertical velocity (omega). Version 2 of the continuous forcing value-added product uses…
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LASSO Data Bundles Released for 2018 Shallow Convection Season
A cross section from a LASSO simulation using the 75-km Multiscale Data Assimilation large-scale forcing on May 23, 2018 (17 UTC), shows vertical velocity (W, colors) with overlaid contours of cloud water content (10−6 kg kg−1), which indicate cloud locations at ARM’s Southern Great Plains atmospheric observatory. The tendency for clouds to be rooted to…