Estimations of the Mexicali Valley (Mexico) Mixing Height
We report estimations of the Mexicali Valley (Mexico) mixing height for three seasons. Surface and upper air meteorological measurements were carried out nearby Cerro Prieto geothermal power plant during July 2010 (summer), January 2012 (winter), and October 2016 (autumn). Four different methods wer...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-05-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/11/5/505 |
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| author | Alejandro Salcido Ana-Teresa Celada-Murillo Susana Carreón-Sierra Telma Castro Oscar Peralta Rogelio-Sebastián Salcido-González Nicasio Hernández-Flores Gustavo-Adolfo Tamayo-Flores Marco-Antonio Martínez-Flores |
| author_facet | Alejandro Salcido Ana-Teresa Celada-Murillo Susana Carreón-Sierra Telma Castro Oscar Peralta Rogelio-Sebastián Salcido-González Nicasio Hernández-Flores Gustavo-Adolfo Tamayo-Flores Marco-Antonio Martínez-Flores |
| author_sort | Alejandro Salcido |
| collection | DOAJ |
| description | We report estimations of the Mexicali Valley (Mexico) mixing height for three seasons. Surface and upper air meteorological measurements were carried out nearby Cerro Prieto geothermal power plant during July 2010 (summer), January 2012 (winter), and October 2016 (autumn). Four different methods were applied to estimate the convective boundary layer (CBL) height from radiosonde (RS) profiles: the parcel method, the gradients method, the least-squares variational approach based on the slab model of the CBL structure, and a covariance method. For nocturnal conditions, we used diagnostic models based on friction velocity and Monin–Obukhov length. Under unstable conditions, we obtained (on average) mixing heights of 497 m at 06:00 LST, 1242 m at 12:00 LST, 1404 m at 15:00 LST, and 482 at 18:00 LST during summer; 754 m at 12:00 LST during winter; and 1195 m at 12:00 LST and 13:00 m between the 14:00 and 15:00 LST during the autumn. The results allowed adjusting a semiempirical model to evaluate mixing height from turbulent sensible heat flux and friction velocity data. Our results provide practical tools that could facilitate the application of regulatory dispersion models to assess air quality in the region. |
| first_indexed | 2024-03-10T19:50:55Z |
| format | Article |
| id | doaj.art-c9e319c92e9f44cb9deea71b848bc4e4 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T19:50:55Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-c9e319c92e9f44cb9deea71b848bc4e42023-11-20T00:26:16ZengMDPI AGAtmosphere2073-44332020-05-0111550510.3390/atmos11050505Estimations of the Mexicali Valley (Mexico) Mixing HeightAlejandro Salcido0Ana-Teresa Celada-Murillo1Susana Carreón-Sierra2Telma Castro3Oscar Peralta4Rogelio-Sebastián Salcido-González5Nicasio Hernández-Flores6Gustavo-Adolfo Tamayo-Flores7Marco-Antonio Martínez-Flores8Instituto Nacional de Electricidad y Energías Limpias, Programa de Sustentabilidad Ambiental, Cuernavaca 62490, MexicoInstituto Nacional de Electricidad y Energías Limpias, Programa de Sustentabilidad Ambiental, Cuernavaca 62490, MexicoInstituto Nacional de Electricidad y Energías Limpias, Programa de Sustentabilidad Ambiental, Cuernavaca 62490, MexicoCentro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Mexico City 04510, MexicoCentro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Mexico City 04510, MexicoFacultad de Derecho y Ciencias Sociales, Benemérita Universidad Autónoma de Puebla, Puebla 72570, MexicoInstituto Nacional de Electricidad y Energías Limpias, Programa de Sustentabilidad Ambiental, Cuernavaca 62490, MexicoInstituto Nacional de Electricidad y Energías Limpias, Programa de Sustentabilidad Ambiental, Cuernavaca 62490, MexicoInstituto Nacional de Electricidad y Energías Limpias, Programa de Sustentabilidad Ambiental, Cuernavaca 62490, MexicoWe report estimations of the Mexicali Valley (Mexico) mixing height for three seasons. Surface and upper air meteorological measurements were carried out nearby Cerro Prieto geothermal power plant during July 2010 (summer), January 2012 (winter), and October 2016 (autumn). Four different methods were applied to estimate the convective boundary layer (CBL) height from radiosonde (RS) profiles: the parcel method, the gradients method, the least-squares variational approach based on the slab model of the CBL structure, and a covariance method. For nocturnal conditions, we used diagnostic models based on friction velocity and Monin–Obukhov length. Under unstable conditions, we obtained (on average) mixing heights of 497 m at 06:00 LST, 1242 m at 12:00 LST, 1404 m at 15:00 LST, and 482 at 18:00 LST during summer; 754 m at 12:00 LST during winter; and 1195 m at 12:00 LST and 13:00 m between the 14:00 and 15:00 LST during the autumn. The results allowed adjusting a semiempirical model to evaluate mixing height from turbulent sensible heat flux and friction velocity data. Our results provide practical tools that could facilitate the application of regulatory dispersion models to assess air quality in the region.https://www.mdpi.com/2073-4433/11/5/505atmospheric soundingmixing heightMexicali Valley |
| spellingShingle | Alejandro Salcido Ana-Teresa Celada-Murillo Susana Carreón-Sierra Telma Castro Oscar Peralta Rogelio-Sebastián Salcido-González Nicasio Hernández-Flores Gustavo-Adolfo Tamayo-Flores Marco-Antonio Martínez-Flores Estimations of the Mexicali Valley (Mexico) Mixing Height Atmosphere atmospheric sounding mixing height Mexicali Valley |
| title | Estimations of the Mexicali Valley (Mexico) Mixing Height |
| title_full | Estimations of the Mexicali Valley (Mexico) Mixing Height |
| title_fullStr | Estimations of the Mexicali Valley (Mexico) Mixing Height |
| title_full_unstemmed | Estimations of the Mexicali Valley (Mexico) Mixing Height |
| title_short | Estimations of the Mexicali Valley (Mexico) Mixing Height |
| title_sort | estimations of the mexicali valley mexico mixing height |
| topic | atmospheric sounding mixing height Mexicali Valley |
| url | https://www.mdpi.com/2073-4433/11/5/505 |
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