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| CARNEIRO,Rayonil Gomes; FISCH,Gilberto; BORGES,Camilla Kassar; HENKES,Alice. |
| ABSTRACT In this study, the erosion of the nocturnal boundary layer (NBL) was analyzed in the central Amazon during the dry season of 2014, using data from the GoAmazon 2014/5 Project and high-resolution model outputs (PArallelized Les Model - PALM). The dataset consisted of in situ (radiosonde) and remote sensing instruments measurements (Ceilometer, Lidar, Wind Profiler, microwave radiometer, and SODAR). The results showed that the NBL erosion occurred, on average, two hours after sunrise (06:00 local time), and the sensible heat flux provided more than 50% of the sensible heating necessary for the erosion process to occur. After the erosion, the convective phase developed quickly (175.2 m h-1). The measurements of the remote sensors showed that the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Planetary boundary layer; Turbulent kinetic energy; Heat flux; NBL erosion. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100080 |
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| Monzikova, A. K.; Kudryavtsev, V.n.; Chapron, Bertrand. |
| In this paper the method for reconstruction of surface pressure from satellite scatterometer measurements is discussed and tested. The method is based on the resistance laws of the planetary boundary layer (PBL), the input parameter of which is the scatterometer surface wind speed and the output – reconstructed geostrophic wind. The method is tested on the base of satellite and in situ measurements over the Gulf of Finland. The surface pressure measurements from the coastal weather stations are used as the in situ data. It was found that the geostrophic wind reconstructed from scatterometer data is lower than the geostrophic wind retrieved from pressure gradients. This is most likely caused by a feature of PBL development over the water surface when the... |
| Tipo: Text |
Palavras-chave: Gulf of Finland; Scatterometer; Planetary boundary layer. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00664/77593/79607.pdf |
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