Inter-comparison of atmospheric boundary layer (ABL) height estimates from different profiling sensors and models in the framework of HyMeX-SOP1
<p>This paper reports results from an inter-comparison effort involving different sensors and models used to measure the atmospheric boundary layer height (ABLH). The effort took place in the framework of the first Special Observing Period of the Hydrological Cycle in the Mediterranean Experim...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2022-07-01
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| Series: | Atmospheric Measurement Techniques |
| Online Access: | https://amt.copernicus.org/articles/15/4153/2022/amt-15-4153-2022.pdf |
| _version_ | 1828330577473830912 |
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| author | D. Summa D. Summa F. Madonna N. Franco B. De Rosa B. De Rosa P. Di Girolamo |
| author_facet | D. Summa D. Summa F. Madonna N. Franco B. De Rosa B. De Rosa P. Di Girolamo |
| author_sort | D. Summa |
| collection | DOAJ |
| description | <p>This paper reports results from an inter-comparison effort involving different sensors and models used to measure the atmospheric boundary layer height (ABLH). The effort took place in the framework of the first Special Observing Period of the Hydrological Cycle in the Mediterranean Experiment (HyMeX-SOP1), with the Raman lidar system BASIL deployed in Candillargues (southern France) and operating in almost continuous mode over the time period September–November 2012. ABLH estimates were obtained based on the application of the Richardson number technique to
Raman lidar and radiosonde measurements and to ECMWF-ERA5 reanalysis data.
In the effort we considered radiosondes launched in the proximity of the
lidar site, as well as radiosondes launched from the closest radiosonde
station included in the Integrated Global Radiosonde Archive (IGRA). The
inter-comparison effort also includes ABLH measurements from the wind
profiler, which rely on the turbulence method, as well as measurements
obtained from elastic backscatter lidar signals. The Richardson number
approach applied to the on-site radiosonde data is taken as reference.
Measurements were carried out throughout the month of October 2012. The
inter-comparison is extended to both daytime and night-time data. Results
reveal a very good agreement between the different approaches, with values
of the correlation coefficient <span class="inline-formula"><i>R</i><sup>2</sup></span> for all compared data pairs
in the range 0.94–0.98. Values of the slope of the fitting line in the
regression analysis are in the
range 0.91–1.08 for daytime comparisons and in the range 0.95–1.03 for
night-time comparisons, which testifies to the presence of the very small biases affecting all
five ABLH estimates with respect to the reference ABLH estimate, with
slightly smaller bias values found at night. Results also confirm that the
combined application of different methods to the sensors and model data allows us to get accurate and cross-validated estimates of the ABL height in a
variety of weather conditions. Correlations between the ABLH measurements
and other atmospheric dynamic and thermodynamic variables, such as CAPE (convective available potential energy), friction velocity and relative humidity, are also evaluated to infer
possible mutual dependences.</p> |
| first_indexed | 2024-04-13T20:41:18Z |
| format | Article |
| id | doaj.art-0a2dc68690a24d4dbf3669a3ddb37abb |
| institution | Directory Open Access Journal |
| issn | 1867-1381 1867-8548 |
| language | English |
| last_indexed | 2024-04-13T20:41:18Z |
| publishDate | 2022-07-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Measurement Techniques |
| spelling | doaj.art-0a2dc68690a24d4dbf3669a3ddb37abb2022-12-22T02:30:50ZengCopernicus PublicationsAtmospheric Measurement Techniques1867-13811867-85482022-07-01154153417010.5194/amt-15-4153-2022Inter-comparison of atmospheric boundary layer (ABL) height estimates from different profiling sensors and models in the framework of HyMeX-SOP1D. Summa0D. Summa1F. Madonna2N. Franco3B. De Rosa4B. De Rosa5P. Di Girolamo6Consiglio Consiglio Nazionale delle Ricerche – Istituto di Metodologie per l'Analisi Ambientale (CNR-IMAA), 85050 Tito Scalo (Pz), ItalyScuola di Ingegneria, Università degli Studi della Basilicata, viale dell'Ateneo Lucano 10, 85100 Potenza, ItalyConsiglio Consiglio Nazionale delle Ricerche – Istituto di Metodologie per l'Analisi Ambientale (CNR-IMAA), 85050 Tito Scalo (Pz), ItalyScuola di Ingegneria, Università degli Studi della Basilicata, viale dell'Ateneo Lucano 10, 85100 Potenza, ItalyConsiglio Consiglio Nazionale delle Ricerche – Istituto di Metodologie per l'Analisi Ambientale (CNR-IMAA), 85050 Tito Scalo (Pz), ItalyScuola di Ingegneria, Università degli Studi della Basilicata, viale dell'Ateneo Lucano 10, 85100 Potenza, ItalyScuola di Ingegneria, Università degli Studi della Basilicata, viale dell'Ateneo Lucano 10, 85100 Potenza, Italy<p>This paper reports results from an inter-comparison effort involving different sensors and models used to measure the atmospheric boundary layer height (ABLH). The effort took place in the framework of the first Special Observing Period of the Hydrological Cycle in the Mediterranean Experiment (HyMeX-SOP1), with the Raman lidar system BASIL deployed in Candillargues (southern France) and operating in almost continuous mode over the time period September–November 2012. ABLH estimates were obtained based on the application of the Richardson number technique to Raman lidar and radiosonde measurements and to ECMWF-ERA5 reanalysis data. In the effort we considered radiosondes launched in the proximity of the lidar site, as well as radiosondes launched from the closest radiosonde station included in the Integrated Global Radiosonde Archive (IGRA). The inter-comparison effort also includes ABLH measurements from the wind profiler, which rely on the turbulence method, as well as measurements obtained from elastic backscatter lidar signals. The Richardson number approach applied to the on-site radiosonde data is taken as reference. Measurements were carried out throughout the month of October 2012. The inter-comparison is extended to both daytime and night-time data. Results reveal a very good agreement between the different approaches, with values of the correlation coefficient <span class="inline-formula"><i>R</i><sup>2</sup></span> for all compared data pairs in the range 0.94–0.98. Values of the slope of the fitting line in the regression analysis are in the range 0.91–1.08 for daytime comparisons and in the range 0.95–1.03 for night-time comparisons, which testifies to the presence of the very small biases affecting all five ABLH estimates with respect to the reference ABLH estimate, with slightly smaller bias values found at night. Results also confirm that the combined application of different methods to the sensors and model data allows us to get accurate and cross-validated estimates of the ABL height in a variety of weather conditions. Correlations between the ABLH measurements and other atmospheric dynamic and thermodynamic variables, such as CAPE (convective available potential energy), friction velocity and relative humidity, are also evaluated to infer possible mutual dependences.</p>https://amt.copernicus.org/articles/15/4153/2022/amt-15-4153-2022.pdf |
| spellingShingle | D. Summa D. Summa F. Madonna N. Franco B. De Rosa B. De Rosa P. Di Girolamo Inter-comparison of atmospheric boundary layer (ABL) height estimates from different profiling sensors and models in the framework of HyMeX-SOP1 Atmospheric Measurement Techniques |
| title | Inter-comparison of atmospheric boundary layer (ABL) height estimates from different profiling sensors and models in the framework of HyMeX-SOP1 |
| title_full | Inter-comparison of atmospheric boundary layer (ABL) height estimates from different profiling sensors and models in the framework of HyMeX-SOP1 |
| title_fullStr | Inter-comparison of atmospheric boundary layer (ABL) height estimates from different profiling sensors and models in the framework of HyMeX-SOP1 |
| title_full_unstemmed | Inter-comparison of atmospheric boundary layer (ABL) height estimates from different profiling sensors and models in the framework of HyMeX-SOP1 |
| title_short | Inter-comparison of atmospheric boundary layer (ABL) height estimates from different profiling sensors and models in the framework of HyMeX-SOP1 |
| title_sort | inter comparison of atmospheric boundary layer abl height estimates from different profiling sensors and models in the framework of hymex sop1 |
| url | https://amt.copernicus.org/articles/15/4153/2022/amt-15-4153-2022.pdf |
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