May 18, 2022 Dataset Open Access

Turner, Dave; Rochette, Luc

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{"conceptdoi":"10.25592/uhhfdm.10211","conceptrecid":"10211","created":"2022-05-18T10:28:56.118267+00:00","doi":"10.25592/uhhfdm.10212","id":10212,"links":{"badge":"https://www.fdr.uni-hamburg.de/badge/doi/10.25592/uhhfdm.10212.svg","conceptbadge":"https://www.fdr.uni-hamburg.de/badge/doi/10.25592/uhhfdm.10211.svg","conceptdoi":"http://doi.org/10.25592/uhhfdm.10211","doi":"http://doi.org/10.25592/uhhfdm.10212"},"metadata":{"access_right":"open","access_right_category":"success","communities":[{"id":"icdc"},{"id":"uhh"}],"creators":[{"affiliation":"NOAA Global Systems Laboratory","name":"Turner, Dave","orcid":"0000-0003-1097-897X"},{"affiliation":"LRtech","name":"Rochette, Luc"}],"description":"<p>This dataset contains thermodynamic profiles retrieved from the ground-based infrared spectrometer called the ASSIST.&nbsp; The ASSIST was located at the &quot;MOLRAO&quot; location at the DWD&#39;s Lindenberg site.&nbsp; The primary retrieved variables are T(z), q(z), liquid water path, and effective radius.&nbsp; The uncertainties of these variables are provided, as well as a full error covariance matrix.&nbsp; Most of the information from the ASSIST observation is in the lowest 2 km; the &quot;cumulative degrees of freedom&quot; fields (cdfs_temperature and cdfs_watervapor) provide a quantitative description of this information with height.&nbsp; The data structure follows the standard DOE Atmospheric Radiation Measurement (ARM) program&#39;s data format.&nbsp; To get the time for the samples, add &quot;base_time&quot; to &quot;time_offset&quot; to get the number of seconds since 1 Jan 1970 at 00:00:00 UTC.</p>\n\n<p><strong>Quality</strong>: There are uncertainty profiles for all of the retrieved variables in the netCDF files.&nbsp; However, the information content in the ASSIST observations decreases rapidly with height; profile quantifies above 3 km should be used with care.&nbsp; Also, if the retrieved LWP &gt; 10 g/m2, then there will be very little-to-no information on the temperature and humidity profile above the cloud base height.&nbsp; I also recommend only using retrievals wherein the RMSr field is less than 8 and gamma field is less than 5. All of these variables are in the netCDF file.</p>\n\n<p><strong>Parameters</strong>: temperature, waterVapor, LWP, ReffL</p>\n\n<p><strong>Funding</strong>: LRtech provided the instrument to FESSTVaL free of charge.&nbsp; The retrievals were performed under the auspices of the NOAA Atmospheric Science for Renewable Energy program</p>","doi":"10.25592/uhhfdm.10212","keywords":["Infrared spectrometer","ASSIST","thermodynamic profiles","optimal estimation","FESSTVaL","SAMD","measurement"],"language":"eng","license":{"id":"CC-BY-4.0"},"notes":"Project: FESSTVaL (Field Experiment on submesoscale spatio-temporal variability in Lindenberg), a measurement campaign initiated by the Hans-Ertel-Center for Weather Research.","publication_date":"2022-05-18","related_identifiers":[{"identifier":"10.25592/uhhfdm.10211","relation":"isVersionOf","scheme":"doi"}],"relations":{"version":[{"count":1,"index":0,"is_last":true,"last_child":{"pid_type":"recid","pid_value":"10212"},"parent":{"pid_type":"recid","pid_value":"10211"}}]},"resource_type":{"title":"Dataset","type":"dataset"},"title":"Thermodynamic retrieved profiles from the ASSIST infrared spectrometer, FESSTVaL campaign","version":"01"},"owners":[162],"revision":5,"updated":"2024-02-27T09:04:47.274584+00:00"}