TR32-Database: Database of Transregio 32

[792] - Information Content and Uncertainties in Thermodynamic Profiles Retrieved from the Ground-Based Atmospheric Emitted Radiance Interferometer

All available metadata of the dataset are listed below. Some features are available, e.g. download of dataset or additional description file.

Features
Citation
Turner, D., Löhnert, U., 2014. Information Content and Uncertainties in Thermodynamic Profiles Retrieved from the Ground-Based Atmospheric Emitted Radiance Interferometer. Journal of Applied Meteorology and Climatology, 1 - 59. DOI: 10.1175/JAMC-D-13-0126.1.
Identification
Title(s):Main Title: Information Content and Uncertainties in Thermodynamic Profiles Retrieved from the Ground-Based Atmospheric Emitted Radiance Interferometer
Description(s):Abstract: The Atmospheric Emitted Radiance Interferometer (AERI) observes spectrally resolved downwelling radiance emitted by the atmosphere in the infrared portion of the electromagnetic spectrum. Profiles of temperature and water vapor, and cloud liquid water path and effective radius for a single liquid cloud layer, are retrieved using an optimal estimation based physical retrieval algorithm from AERI-observed radiance data. This algorithm provides a full error covariance matrix for the solution, and both the degrees of freedom for signal and the Shannon information content. The algorithm is evaluated both with synthetic and real AERI observations. The AERI is shown to have approximately 85% and 70% of its information in the lowest 2 km of the atmosphere for temperature and water vapor profiles, respectively. In clear sky situations, the mean bias errors with respect to the radiosonde profiles are less than 0.2 K and 0.3 g/kg for heights below 2 km for temperature and water vapor mixing ratio, respectively; the maximum root mean square errors are less than 1 K and 0.8 g/kg. The errors in the retrieved profiles in cloudy situations are larger, due in part to the scattering contribution to the downwelling radiance that was not accounted for in the forward model. However, scattering is largest in one of the spectral regions used in the retrieval, and removing this spectral region results in a slight reduction of the information content but a considerable improvement in the accuracy of the retrieved thermodynamic profiles.
Identifier(s):DOI: 10.1175/JAMC-D-13-0126.1
Responsible Party
Creator(s):Author: David Turner
Author: Ulrich Löhnert
Publisher:American Meteorological Society
Topic
TR32 Topic:Atmosphere
Subject(s):CRC/TR32 Keywords: Atmospheric Measurement
File Details
File Name:2013_Turner_JAMC.pdf
Data Type:Text
Size(s):59 Pages
File Size:4096 kB (4 MB)
Date(s):Available: 2013-12-05
Mime Type:application/pdf
Data Format:PDF
Language:English
Status:Completed
Constraints
Download Permission:OnlyTR32
General Access and Use Conditions:For internal use only
Access Limitations:For internal use only
Licence:TR32DB Data policy agreement
Geographic
North:-no map data
East:-
South:-
West:-
Measurement Region:Other
Measurement Location:--Other--
Specific Informations - Publication
Status:Accepted
Review:PeerReview
Year:2014
Type:Article
Article Type:Journal
Source:Journal of Applied Meteorology and Climatology
Number Of Pages:59
Page Range:1 - 59
Metadata Details
Metadata Creator:Ulrich Löhnert
Metadata Created:2013-12-10
Metadata Last Updated:2013-12-10
Subproject:D2
Funding Phase:2
Metadata Language:English
Metadata Version:V40
Dataset Metrics
Page Visits:164
Metadata Downloads:0
Dataset Downloads:4
Dataset Activity
Features