15 hasil untuk "O. Hartogensis"
Menampilkan 1–15 · 0,40 detik · RSS
-
Artikel Jurnal Teks lengkap
Turbulence kinetic energy budget during the afternoon transition – Part 2: A simple TKE model
A simple model for turbulence kinetic energy (TKE) and the TKE budget is presented for sheared convective atmospheric conditions based on observations from the Boundary Layer Late Afternoon and Sunset Turbulence (BLLAST) field campaign. It is based on an idealized mixed-layer approximation and a…
-
Artikel Jurnal Teks lengkap
Questioning the Endorheic Paradigm: water balance dynamics in the Salar del Huasco basin, Chile
Arid endorheic basins exhibit limited water availability shaped by strong precipitation and evaporation variability. Understanding these processes is crucial for sustainable water resources management in such fragile environments. This study examines how rainfall and evaporation drive the spatial…
-
Artikel Jurnal Teks lengkap
Interactions among drainage flows, gravity waves and turbulence: a BLLAST case study
The interactions among several stable-boundary-layer (SBL) processes occurring just after the evening transition of 2 July 2011 have been analysed using data from instruments deployed over the area of Lannemezan (France) during the Boundary Layer Late Afternoon and Sunset Turbulence (BLLAST) field…
-
Artikel Jurnal Teks lengkap
Impact of canopy environmental variables on the diurnal dynamics of water and carbon dioxide exchange at leaf and canopy level
Quantifying water vapor and carbon dioxide (CO2) exchange dynamics between the land and the atmosphere through observations and modeling is necessary in order to reproduce and project near-surface climate in coupled land–atmosphere models. The exchange of water and CO2 occurs at the leaf surface…
-
Artikel Jurnal
Use of optical-microwave scintillometry to validate a thermal energy balance model for an olive orchard in Morocco
This study investigates the performance of Optical-microwave scintillometers (OMS) in quantifying latent heat flux (LE) and assess its effectiveness in validating the Soil Plant Atmosphere and Remote Sensing Evapotranspiration (SPARSE) model, driven by LANDSAT satellite data. The study was…
-
Artikel Jurnal Teks lengkap
Surface representation impacts on turbulent heat fluxes in the Weather Research and Forecasting (WRF) model (v.4.1.3)
The water and energy transfers at the interface between the Earth's surface and the atmosphere should be correctly simulated in numerical weather and climate models. This implies the need for a realistic and accurate representation of land cover (LC), including appropriate parameters for each…
-
Artikel Jurnal Teks lengkap
Role of the residual layer and large-scale subsidence on the development and evolution of the convective boundary layer
Observations, mixed-layer theory and the Dutch Large-Eddy Simulation model (DALES) are used to analyze the dynamics of the boundary layer during an intensive operational period (1 July 2011) of the Boundary Layer Late Afternoon and Sunset Turbulence campaign. Continuous measurements made by remote…
-
Artikel Jurnal Teks lengkap
Multi-scale temporal analysis of evaporation on a saline lake in the Atacama Desert
We investigate how evaporation changes depending on the scales in the Altiplano region of the Atacama Desert. More specifically, we focus on the temporal evolution from the climatological to the sub-diurnal scales on a high-altitude saline lake ecosystem. We analyze the evaporation trends over 70…
-
Artikel Jurnal Teks lengkap
Local evaporation controlled by regional atmospheric circulation in the Altiplano of the Atacama Desert
We investigate the influence of regional atmospheric circulation on the evaporation of a saline lake in the Altiplano (also known as the Andean Plateau) region of the Atacama Desert. For that, we conducted a field experiment in the Salar del Huasco (SDH) basin (135 km east of the Pacific Ocean), in…
-
Artikel Jurnal Teks lengkap
Estimation of the advection effects induced by surface heterogeneities in the surface energy budget
The effect of terrain heterogeneities in one-point measurements is a continuous subject of discussion. Here we focus on the order of magnitude of the advection term in the equation of the evolution of temperature as generated by documented terrain heterogeneities and we estimate its importance as a…
-
Artikel Jurnal Teks lengkap
Study of a prototypical convective boundary layer observed during BLLAST: contributions by large-scale forcings
We study the influence of the large-scale atmospheric contribution to the dynamics of the convective boundary layer (CBL) in a situation observed during the Boundary Layer Late Afternoon and Sunset Turbulence (BLLAST) field campaign. We employ two modeling approaches, the mixed-layer theory and…
-
Artikel Jurnal Teks lengkap
CloudRoots: integration of advanced instrumental techniques and process modelling of sub-hourly and sub-kilometre land–atmosphere interactions
The CloudRoots field experiment was designed to obtain a comprehensive observational dataset that includes soil, plant, and atmospheric variables to investigate the interaction between a heterogeneous land surface and its overlying atmospheric boundary layer at the sub-hourly and sub-kilometre…
-
Artikel Jurnal Teks lengkap
Daytime formation of nitrous acid at a coastal remote site in Cyprus indicating a common ground source of atmospheric HONO and NO
Characterization of daytime sources of nitrous acid (HONO) is crucial to understand atmospheric oxidation and radical cycling in the planetary boundary layer. HONO and numerous other atmospheric trace constituents were measured on the Mediterranean island of Cyprus during the CYPHEX (CYprus…
-
Artikel Jurnal Teks lengkap
EAGLE 2006 – Multi-purpose, multi-angle and multi-sensor in-situ and airborne campaigns over grassland and forest
EAGLE2006 – an intensive field campaign for the advances in land surface hydrometeorological processes – was carried out in the Netherlands from 8th to 18th June 2006, involving 16 institutions with in total 67 people from 16 different countries. In addition to the acquisition of multi-angle and…
-
Artikel Jurnal Teks lengkap
The BLLAST field experiment: Boundary-Layer Late Afternoon and Sunset Turbulence
Due to the major role of the sun in heating the earth's surface, the atmospheric planetary boundary layer over land is inherently marked by a diurnal cycle. The afternoon transition, the period of the day that connects the daytime dry convective boundary layer to the night-time stable boundary…