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Results 1 - 10
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94
Global simulation of tropospheric O3-NOx-hydrocarbon chemistry -- 1. Model formulation
, 1998
"... We describe a global three-dimensional model for tropospheric O 3-NO x-hydrocarbon chemistry with synoptic-scale resolution. A suite of 15 chemical tracers, including O 3, NO x, PAN, HNO 3, CO, H 2 O 2, and various hydrocarbons, is simulated in the model. For computational expediency, chemical pro ..."
Abstract
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Cited by 267 (89 self)
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meteorology. Improvements are made to existing schemes for computing biogenic emissions of isoprene and NO. Our best estimates of global emissions include among others 42 Tg N yr-1 for NO x (21 Tg N yr-1 from fossil fuel combustion, 12 Tg N yr-1 from biomass burning, 6 Tg N yr-1 from soils, and 3 Tg N yr-1
Characterization of Rape Field Microwave Emission and Implications to Surface Soil Moisture Retrievals
, 2012
"... Abstract: In the course of Soil Moisture and Ocean Salinity (SMOS) mission calibration and validation activities, a ground based L-band radiometer ELBARA II was situated at the test site Puch in Southern Germany in the Upper Danube Catchment. The experiment is described and the different data sets a ..."
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Cited by 1 (1 self)
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acquired are presented. The L-band microwave emission of the biosphere (L-MEB) model that is also used in the SMOS L2 soil moisture algorithm is used to simulate the microwave emission of a winter oilseed rape field in Puch that was also observed by the radiometer. As there is a lack of a rape
Evaluation of MM5 Simulations With HTSVS With and Without Inclusion of Soil-Frost Parameterization
"... Permafrost and seasonally frozen ground are important surface features in high-latitudes. Because of this, a soil-frost parameterization was added to the Penn State University/NCAR mesoscale meteorological model MM5 in combination with the well validated hydro-thermodynamic soil vegetation scheme HT ..."
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Cited by 1 (1 self)
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HTSVS, which takes into account among other things soil freezing and thawing. Reanalysis of temperature, wind vector, specific humidity and observations of precipitation were used to evaluate the importance of the soil-frost parameterization on the forecast for an episode in summer. R.m.s. errors
Article Soil Moisture Estimations Based on Airborne CAROLS L-Band Microwave Data
, 2011
"... Abstract: The SMOS satellite mission, launched in 2009, allows global soil moisture estimations to be made using the L-band Microwave Emission of the Biosphere (L-MEB) model, which simulates the L-band microwave emissions produced by the soil–vegetation layer. This model was calibrated using various ..."
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Abstract: The SMOS satellite mission, launched in 2009, allows global soil moisture estimations to be made using the L-band Microwave Emission of the Biosphere (L-MEB) model, which simulates the L-band microwave emissions produced by the soil–vegetation layer. This model was calibrated using
gas emissions from managed peat soils: is the IPCC reporting guidance realistic
- Mires Peat
"... SUMMARY Drainage of peatlands leads to the decomposition of peat, resulting in substantial losses of carbon and nitrogen to the atmosphere. The conservation and restoration of peatlands can provide a major contribution to the mitigation of climate change. Improvements to guidance and capacity for r ..."
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Cited by 6 (1 self)
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for reporting of greenhouse gas emissions from peatlands will be valuable in the context of the current negotiations towards a post-2012 climate agreement. This article evaluates IPCC approaches to greenhouse gas emissions from managed organic (peat) soils and presents a summary
Modeling the energy balance in Marseille: Sensitivity to roughness length parameterizations and thermal admittance
"... Modeles de Pollution atmospherique et de Transport d’Emissions), a 4-day intensive observation period was selected to evaluate the Advanced Regional Prediction System (ARPS), a nonhydrostatic meteorological mesoscale model that was optimized with a parameterization for thermal roughness length to be ..."
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Modeles de Pollution atmospherique et de Transport d’Emissions), a 4-day intensive observation period was selected to evaluate the Advanced Regional Prediction System (ARPS), a nonhydrostatic meteorological mesoscale model that was optimized with a parameterization for thermal roughness length
Atmospheric Chemistry and Physics Improvement and evaluation of simulated global biogenic soil NO
, 2011
"... Abstract. Biogenic NO emissions from soils (SNOx) play important direct and indirect roles in tropospheric chemistry. The most widely applied algorithm to calculate SNOx in global models was published 15 years ago by Yienger and Levy (1995), and was based on very few measurements. Since then, numero ..."
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Abstract. Biogenic NO emissions from soils (SNOx) play important direct and indirect roles in tropospheric chemistry. The most widely applied algorithm to calculate SNOx in global models was published 15 years ago by Yienger and Levy (1995), and was based on very few measurements. Since then
An improvement on the dust emission scheme in the global aerosol-climate model ECHAM5-HAM, Atmos
- Chem. Phys
, 2008
"... Abstract Formulation of the dust emission scheme in the global aerosol-climate modeling system ECHAM5-HAM has been improved. Modifications on the surface aerodynamic roughness length, soil moisture and East-Asian soil properties are included in the parameterization, which result in a large impact o ..."
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Cited by 7 (2 self)
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Abstract Formulation of the dust emission scheme in the global aerosol-climate modeling system ECHAM5-HAM has been improved. Modifications on the surface aerodynamic roughness length, soil moisture and East-Asian soil properties are included in the parameterization, which result in a large impact
Numerical modeling of windblown dust in the Pacific Northwest with improved meteorology and dust emission models
- J. of Geophys. Res
, 2004
"... [1] Soil erosion by wind is a serious consequence of dry land agriculture in eastern Washington, where the main adverse effects are loss of nutrient-rich soil, reduced visibility during dust storms and degradation of air quality. A multidisciplinary research effort to study windblown dust in central ..."
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Cited by 3 (0 self)
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meteorological model, Mesoscale Metorological Model Version 5 (MM5), coupled with the CALMET/ CALGRID Eularian modeling pair and a new dust emission module (EMIT-PM). Improvements to the modeling system included employing higher spatial resolutions for the meteorological models and improved parameterizations
Sensitivity Analysis of b-factor in Microwave Emission Model for Soil Moisture Retrieval: A Case Study for SMAP Mission
, 2010
"... Abstract: Sensitivity analysis is critically needed to better understand the microwave emission model for soil moisture retrieval using passive microwave remote sensing data. The vegetation b-factor along with vegetation water content and surface characteristics has significant impact in model predi ..."
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Cited by 1 (0 self)
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prediction. This study evaluates the sensitivity of the b-factor, which is function of vegetation type. The analysis is carried out using Passive and Active L and S-band airborne sensor (PALS) and measured field soil moisture from Southern Great Plains experiment (SGP99). The results show that the relative
Results 1 - 10
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94
