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Title: Estimation of liquid water path below the melting layer in stratiform precipitation systems using radar measurements during MC3E

Journal Article · · Atmospheric Measurement Techniques (Online)
ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]
  1. Univ. of Arizona, Tucson, AZ (United States)
  2. Univ. of Colorado, Boulder, CO (United States)
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In this study, the liquid water path (LWP) below the melting layer in stratiform precipitation systems is retrieved, which is a combination of rain liquid water path (RLWP) and cloud liquid water path (CLWP). The retrieval algorithm uses measurements from the vertically pointing radars (VPRs) at 35 and 3 GHz operated by the US Department of Energy Atmospheric Radiation Measurement (ARM) and National Oceanic and Atmospheric Administration (NOAA) during the field campaign Midlatitude Continental Convective Clouds Experiment (MC3E). The measured radar reflectivity and mean Doppler velocity from both VPRs and spectrum width from the 35 GHz radar are utilized. With the aid of the cloud base detected by a ceilometer, the LWP in the liquid layer is retrieved under two different situations: (I) no cloud exists below the melting base, and (II) cloud exists below the melting base. In (I), LWP is primarily contributed from raindrops only, i.e., RLWP, which is estimated by analyzing the Doppler velocity differences between two VPRs. In (II), cloud particles and raindrops coexist below the melting base. The CLWP is estimated using a modified attenuation-based algorithm. Two stratiform precipitation cases (20 and 11 May 2011) during MC3E are illustrated for two situations, respectively. With a total of 13 h of samples during MC3E, statistical results show that the occurrence of cloud particles below the melting base is low (9 %); however, the mean CLWP value can be up to 0.56 kg m-2, which is much larger than the RLWP (0.10 kg m-2). When only raindrops exist below the melting base, the average RLWP value is larger (0.32 kg m-2) than the with-cloud situation. The overall mean LWP below the melting base is 0.34 kg m-2 for stratiform systems during MC3E.

Research Organization:
Univ. of Colorado, Boulder, CO (United States); Univ. of Arizona, Tucson, AZ (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0014294; SC0017015
OSTI ID:
1612133
Journal Information:
Atmospheric Measurement Techniques (Online), Vol. 12, Issue 7; ISSN 1867-8548
Publisher:
European Geosciences UnionCopyright Statement
Country of Publication:
United States
Language:
English

References (36)

Precipitation Estimation from the ARM Distributed Radar Network during the MC3E Campaign journal September 2014
Intercalibrated Passive Microwave Rain Products from the Unified Microwave Ocean Retrieval Algorithm (UMORA) journal March 2008
Constraining Microwave Brightness Temperatures by Radar Brightband Observations journal June 2003
The Atmospheric Radiation Measurement Program journal January 2003
Dual-frequency radar Doppler spectral retrieval of rain drop size distributions and entangled dynamics variables journal May 2015
Reflectivity and Liquid Water Content Vertical Decomposition Diagrams to Diagnose Vertical Evolution of Raindrop Size Distributions journal March 2016
Precipitation and Convective Characteristics of Summer Deep Convection over East Asia Observed by TRMM journal May 2013
Effect of Rain on Ground-Based Microwave Radiometric Measurements in the 20–90-GHz Range journal December 1996
The Atmospheric radiation measurement (ARM) program network of microwave radiometers: instrumentation, data, and retrievals journal January 2013
Assessment of Radar Signal Attenuation Caused by the Melting Hydrometeor Layer journal April 2008
Microwave Passive Ground-Based Retrievals of Cloud and Rain Liquid Water Path in Drizzling Clouds: Challenges and Possibilities journal November 2017
Partitioning of cloud water and rainwater content by ground-based observations with the Advanced Microwave Radiometer for Rain Identification (ADMIRARI) in synergy with a micro rain radar: PARTITIONING CLOUD AND RAIN LIQUID WATER journal March 2012
High-level interface to T-matrix scattering calculations: architecture, capabilities and limitations journal January 2014
Top-of-atmosphere radiation budget of convective core/stratiform rain and anvil clouds from deep convective systems: CONVECTIVE CORE ANVIL CLOUD RADIATION journal December 2011
Disentangling Mie and attenuation effects in rain using a Ka -W dual-wavelength Doppler spectral ratio technique journal October 2013
Synergetic use of millimeter- and centimeter-wavelength radars for retrievals of cloud and rainfall parameters journal January 2010
A Climatology of Disdrometer Measurements of Rainfall in Finland over Five Years with Implications for Global Radar Observations journal February 2012
A new retrieval for cloud liquid water path using a ground-based microwave radiometer and measurements of cloud temperature journal July 2001
Characterization of Precipitating Clouds by Ground-Based Measurements with the Triple-Frequency Polarized Microwave Radiometer ADMIRARI journal March 2010
Vertical Air Motions and Raindrop Size Distributions Estimated Using Mean Doppler Velocity Difference From 3- and 35-GHz Vertically Pointing Radars journal October 2016
Improving representation of convective transport for scale-aware parameterization: 1. Convection and cloud properties simulated with spectral bin and bulk microphysics: CRM Model Evaluation journal April 2015
Lidar and Triple-Wavelength Doppler Radar Measurements of the Melting Layer: A Revised Model for Dark- and Brightband Phenomena journal March 2005
SSM/I Rain Retrievals within a Unified All-Weather Ocean Algorithm journal May 1998
Liquid water content estimates using simultaneous S and K a band radar measurements : DUAL-WAVELENGTH RADAR LWC ESTIMATES journal April 2011
The Midlatitude Continental Convective Clouds Experiment (MC3E) journal September 2016
Long-Term Radar Observations of the Melting Layer of Precipitation and Their Interpretation journal April 1995
Comparisons of Ice Water Path in Deep Convective Systems Among Ground‐Based, GOES, and CERES‐MODIS Retrievals journal February 2018
Structure and Evolution of Mesoscale Convective Systems: Sensitivity to Cloud Microphysics in Convection‐Permitting Simulations Over the United States journal July 2018
Rain retrieval from dual-frequency radar Doppler spectra: validation and potential for a midlatitude precipitating case-study: Rain Retrieval from Dual-Frequency Radar Doppler Spectra journal April 2017
Accuracy of cloud liquid water path from ground-based microwave radiometry 2. Sensor accuracy and synergy: ACCURACY OF CLOUD LIQUID WATER PATH 2 journal February 2003
Retrieving Liquid Wat0er Path and Precipitable Water Vapor From the Atmospheric Radiation Measurement (ARM) Microwave Radiometers journal November 2007
Retrievals of ice cloud microphysical properties of deep convective systems using radar measurements: Convective Cloud Microphysical Retrieval journal September 2016
A Method to Estimate Vertically Integrated Amounts of Cloud Ice and Liquid and Mean Rain Rate in Stratiform Precipitation from Radar and Auxiliary Data journal February 2009
ARM: KAZRARSCL: multiple outputs from first Kollias algorithm
  • Johnson, Karen; Jensen, Michael
  • Atmospheric Radiation Measurement (ARM) Archive, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (US); https://doi.org/10.5439/1350629
dataset January 2011
A Method to Estimate Vertically Integrated Amounts of Cloud Ice and Liquid and Mean Rain Rate in Stratiform Precipitation from Radar and Auxiliary Data journal July 2009
Synergetic use of millimeter- and centimeter-wavelength radars for retrievals of cloud and rainfall parameters journal January 2010

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