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Title: Doppler Lidar Vertical Velocity Statistics Value-Added Product

Accurate height-resolved measurements of higher-order statistical moments of vertical velocity fluctuations are crucial for improved understanding of turbulent mixing and diffusion, convective initiation, and cloud life cycles. The Atmospheric Radiation Measurement (ARM) Climate Research Facility operates coherent Doppler lidar systems at several sites around the globe. These instruments provide measurements of clear-air vertical velocity profiles in the lower troposphere with a nominal temporal resolution of 1 sec and height resolution of 30 m. The purpose of the Doppler lidar vertical velocity statistics (DLWSTATS) value-added product (VAP) is to produce height- and time-resolved estimates of vertical velocity variance, skewness, and kurtosis from these raw measurements. The VAP also produces estimates of cloud properties, including cloud-base height (CBH), cloud frequency, cloud-base vertical velocity, and cloud-base updraft fraction.
Authors:
 [1] ;  [1] ;  [1] ;  [1]
  1. DOE ARM Climate Research Facility, Washington, DC (United States)
Publication Date:
OSTI Identifier:
1238068
Report Number(s):
DOE/SC--ARM/TR-149
DOE Contract Number:
AC05-7601830
Resource Type:
Technical Report
Publisher:
DOE ARM Climate Research Facility, Pacific Northwest National Laboratory; Richland, Washington
Research Org:
DOE ARM Climate Research Facility, Washington, DC (United States)
Sponsoring Org:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
Contributing Orgs:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; 54 ENVIRONMENTAL SCIENCES