-
WACR-ARSCL Evaluation Data Available for MARCUS Field Campaign
From top to bottom, these images from the MARCUS WACR-ARSCL VAP show best-estimate reflectivity, non-ship-corrected mean Doppler velocity, and ship-corrected mean Doppler velocity for November 28, 2017. A value-added product (VAP) that combines observations from the marine version of the 95 GHz W-Band ARM Cloud Radar (WACR) and other ARM mobile instruments now provides datastreams…
-
Radiation Data Quality VAP Expands to LASIC Field Campaign Site
Radiometers on Ascension Island helped collect data as part of the LASIC field campaign, which studied smoke particles and their interaction with clouds as they passed westward over the Atlantic Ocean. A new release for the Data Quality Assessment for ARM Radiation Data (QCRAD) value-added product (VAP) covers the mobile deployment to Ascension Island for…
-
Newly Revised Value-Added Products Available for Raman Lidar
Sample time-height cross-sections show a) water vapor mixing ratio, b) temperature, and c) aerosol backscatter coefficient from the Southern Great Plains Raman lidar on July 4, 2018. A suite of newly revised value-added products (VAPs) is now available for Raman lidars operated by the Atmospheric Radiation Measurement (ARM) user facility. The suite consists of three…
-
New Microwave Radiometer Retrievals VAP Data Available for Several ARM Campaigns and Sites
Microwave radiometers, such as this one at ARM’s North Slope of Alaska atmospheric observatory, provide time-series measurements of column-integrated amounts of water vapor and liquid water. The Microwave Radiometer Retrievals (MWRRET) value-added product (VAP) has been processed for the following Atmospheric Radiation Measurement (ARM) user facility field campaigns and measurement sites: the ARM North Slope…
-
30 New Case Dates Released for LASSO
This skill score comparison shows cloud fraction results from the large-eddy simulation compared with total sky imager (TSI) observations. Each number represents a different ensemble member from the July 21, 2017, case. The Large-Eddy Simulation (LES) ARM Symbiotic Simulation and Observation (LASSO) team has processed and released 30 new case dates for the 2017 spring-summer…
-
Microwave Radiometer Retrieval Evaluation Data Available for Eastern North Atlantic
The 3-channel microwave radiometer provides time-series measurements of brightness temperatures from three channels, which are sensitive to the presence of liquid water and precipitable water vapor. Evaluation data for the Microwave Radiometer Retrievals version 2 (MWRRETv2) value-added product (VAP) have been processed for the Atmospheric Radiation Measurement (ARM) user facility’s Eastern North Atlantic (ENA) atmospheric…
-
New Cloud Type VAP and Visualization Available
A new data product—the Cloud Type Classification (CLDTYPE) value-added product (VAP)—provides an automated cloud type classification based on macrophysical quantities derived from vertically pointing lidar and radar. Up to 10 layers of clouds are classified into seven cloud types based on predetermined and site-specific thresholds of cloud top height, cloud base height, and thickness. Inputs…
-
Merged Multisensor Cloud-Precipitation Mask and Cloud Type Data Now Available for GoAmazon2014/15
The example plot shown here is from a merged RWP-WACR-ARSCL data set. Key: a) WACR reflectivity; b) RWP reflectivity; c) new RWP-WACR-ARSCL cloud mask; d) cloud-type classification; e) microwave radiometer (MWR) retrieved liquid water path (blue), present weather detector (PWD) rain rate (black), and tipping bucket rain rate (red). The black dots in panels (a,…
-
ARM Cloud Radar-Remote Sensing Evaluation Data Available for LASIC Campaign
Plots from the WACR-ARSCL value-added product show reflectivity best estimate (top) and mean Doppler velocity (bottom) as captured February 22, 2017, during the LASIC field campaign on Ascension Island. Evaluation data for the W-Band ARM Cloud Radar-Active Remote Sensing of Clouds (WACR-ARSCL) value-added product are now available for the ARM Mobile Facility deployment to Ascension…
-
QCRAD Value-Added Data Product Updates Available
Level 2 (c2/s2) data for the Data Quality Assessment for ARM Radiation Data (QCRAD) value-added product (VAP) have now been processed at all Atmospheric Radiation Measurement (ARM) user facility fixed sites through summer 2017. These sites include the Southern Great Plains central and extended facilities, Barrow (known officially as Utqiaġvik) and Oliktok Point, Alaska, and…