Academic Journal
Comparison of observed and modeled cloud-free longwave downward radiation (2010–2016) at the high mountain BSRN Izaña station
| Title: | Comparison of observed and modeled cloud-free longwave downward radiation (2010–2016) at the high mountain BSRN Izaña station |
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| Authors: | R. D. García, A. Barreto, E. Cuevas, J. Gröbner, O. E. García, A. Gómez-Peláez, P. M. Romero-Campos, A. Redondas, V. E. Cachorro, R. Ramos |
| Source: | Geoscientific Model Development, Vol 11, Pp 2139-2152 (2018) |
| Publisher Information: | Copernicus Publications, 2018. |
| Publication Year: | 2018 |
| Collection: | LCC:Geology |
| Subject Terms: | Geology, QE1-996.5 |
| More Details: | A 7-year (2010–2016) comparison study between measured and simulated longwave downward radiation (LDR) under cloud-free conditions was performed at the Izaña Atmospheric Observatory (IZO, Spain). This analysis encompasses a total of 2062 cases distributed approximately evenly between day and night. Results show an excellent agreement between Baseline Surface Radiation Network (BSRN) measurements and simulations with libRadtran V2.0.1 and MODerate resolution atmospheric TRANsmission model (MODTRAN) V6 radiative transfer models (RTMs). Mean bias (simulated − measured) of 10 mm, the observed night-time difference between models and measurements is +5 W m−2 indicating a scale change of the World Infrared Standard Group of Pyrgeometers (WISG), which serves as reference for atmospheric longwave radiation measurements. Preliminary results suggest a possible impact of dust aerosol on infrared radiation during daytime that might not be correctly parametrized by the models, resulting in a slight underestimation of the modeled LDR, of about −3 W m−2, for relatively high aerosol optical depth (AOD > 0.20). |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 1991-959X 1991-9603 |
| Relation: | https://www.geosci-model-dev.net/11/2139/2018/gmd-11-2139-2018.pdf; https://doaj.org/toc/1991-959X; https://doaj.org/toc/1991-9603 |
| DOI: | 10.5194/gmd-11-2139-2018 |
| Access URL: | https://doaj.org/article/0ebcbd7ad2d44a769f1aceee0f7641a0 |
| Accession Number: | edsdoj.0ebcbd7ad2d44a769f1aceee0f7641a0 |
| Database: | Directory of Open Access Journals |
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| ISSN: | 1991959X 19919603 |
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| DOI: | 10.5194/gmd-11-2139-2018 |
| Published in: | Geoscientific Model Development |
| Language: | English |