U.S. Department of EnergyOffice of Scientific and Technical Information
MWR3C physical retrievals of precipitable water vapor and cloud liquid water path
Abstract
The data set contains physical retrievals of PWV and cloud LWP retrieved from MWR3C measurements during the MAGIC campaign. Additional data used in the retrieval process include radiosondes and ceilometer. The retrieval is based on an optimal estimation technique that starts from a first guess and iteratively repeats the forward model calculations until a predefined convergence criterion is satisfied. The first guess is a vector of [PWV,LWP] from the neural network retrieval fields in the netcdf file. When convergence is achieved the 'a posteriori' covariance is computed and its square root is expressed in the file as the retrieval 1-sigma uncertainty. The closest radiosonde profile is used for the radiative transfer calculations and ceilometer data are used to constrain the cloud base height. The RMS error between the brightness temperatures is computed at the last iterations as a consistency check and is written in the last column of the output file.
- Authors:
- Publication Date:
- DOE Contract Number:
- DE-AC05-00OR22725
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Atmospheric Radiation Measurement (ARM) Archive
- Sponsoring Org.:
- USDOE Office of Science (SC), Biological and Environmental Research (BER)
- Subject:
- 54 Environmental Sciences
- Keywords:
- MWR3C, lwp, pwv, MAGIC, ARM, DOE
- OSTI Identifier:
- 1435798
- DOI:
- https://doi.org/10.5439/1435798
Citation Formats
Cadeddu, Maria. MWR3C physical retrievals of precipitable water vapor and cloud liquid water path. United States: N. p., 2016.
Web. doi:10.5439/1435798.
Cadeddu, Maria. MWR3C physical retrievals of precipitable water vapor and cloud liquid water path. United States. doi:https://doi.org/10.5439/1435798
Cadeddu, Maria. 2016.
"MWR3C physical retrievals of precipitable water vapor and cloud liquid water path". United States. doi:https://doi.org/10.5439/1435798. https://www.osti.gov/servlets/purl/1435798. Pub date:Wed Oct 12 00:00:00 EDT 2016
@article{osti_1435798,
title = {MWR3C physical retrievals of precipitable water vapor and cloud liquid water path},
author = {Cadeddu, Maria},
abstractNote = {The data set contains physical retrievals of PWV and cloud LWP retrieved from MWR3C measurements during the MAGIC campaign. Additional data used in the retrieval process include radiosondes and ceilometer. The retrieval is based on an optimal estimation technique that starts from a first guess and iteratively repeats the forward model calculations until a predefined convergence criterion is satisfied. The first guess is a vector of [PWV,LWP] from the neural network retrieval fields in the netcdf file. When convergence is achieved the 'a posteriori' covariance is computed and its square root is expressed in the file as the retrieval 1-sigma uncertainty. The closest radiosonde profile is used for the radiative transfer calculations and ceilometer data are used to constrain the cloud base height. The RMS error between the brightness temperatures is computed at the last iterations as a consistency check and is written in the last column of the output file.},
doi = {10.5439/1435798},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Oct 12 00:00:00 EDT 2016},
month = {Wed Oct 12 00:00:00 EDT 2016}
}