دورية أكاديمية
WWLLN Hot and Cold-Spots of Lightning Activity and Their Relation to Climate in an Extended Central America Region 2012–2020
| العنوان: | WWLLN Hot and Cold-Spots of Lightning Activity and Their Relation to Climate in an Extended Central America Region 2012–2020 |
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| المؤلفون: | Amador Astúa, Jorge Alberto, Arce Fernández, Dayanna |
| المصدر: | Atmosphere, 13(1), 76-95. |
| سنة النشر: | 2022 |
| المجموعة: | Universidad de Costa Rica: Repositorio Kérwá |
| مصطلحات موضوعية: | CENTRAL AMERICA, Lightning, WWLLN, SPORTS, CLIMATE |
| الوصف: | Lightning activity has been recognized to have, historically, social and environmental consequences around the globe. This work analyzes the space-time distribution of lightning-densities (D) in an extended Central America region (ECA). World Wide Lightning Location Network data was analyzed to link D with dominant climate patterns over the ECA for 2012–2020. D associated with cold surges entering the tropics dominate during boreal winter. The highest D (hot-spots) was found to agree well with previously known sites, such as the “Catatumbo” in Venezuela; however, D was lower here due to different detection efficiencies. Previously reported hot-spots showed strong continental signals in CA; however, in this work, they were over the oceans near to coastlines, especially in the eastern tropical Pacific (ETP). Most cold-spots, implying a minimum of vulnerability to human impacts and to some industries, were situated in the Caribbean Sea side of Central America. The Mid-Summer-Drought and the Caribbean-Low-Level-Jet (CLLJ) markedly reduced the D during July-August. The CLLJ in the central CS and across the Yucatan and the southern Gulf of Mexico acts as a lid inhibiting convection due to its strong vertical shear during the boreal summer. The CLLJ vertical wind-shear and its extension to the Gulf of Papagayo also diminished convection and considerably decreased the D over a region extending westward into the ETP for at least 400–450 km. A simple physical mechanism to account for the coupling between the CLLJ, the MSD, and lightning activity is proposed for the latter region. ; UCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigaciones Geofísicas (CIGEFI) |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 2073-4433 |
| العلاقة: | https://www.mdpi.com/2073-4433/13/1/76Test; https://hdl.handle.net/10669/87001Test; https://doi.org/10.3390/atmos13010076Test; 805-A4-906; 805-A5-719; 805-B0-810; 805-B5-296; 805-B8-604; 805-B9-454; 805-B9-609 |
| DOI: | 10.3390/atmos13010076 |
| الإتاحة: | https://doi.org/10.3390/atmos13010076Test https://hdl.handle.net/10669/87001Test https://www.mdpi.com/2073-4433/13/1/76Test |
| رقم الانضمام: | edsbas.4E14A856 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 20734433 |
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| DOI: | 10.3390/atmos13010076 |