Search Results - "Bergametti, G"

Aeolian sediment fluxes measured over various plant/soil complexes in the Chihuahuan desert by Bergametti, G., Gillette, D. A.

“…Measurements of horizontal flux of sediment were performed over the period 1998–2005 at different vegetated areas within the Jornada Long Term Ecological…”
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How long does precipitation inhibit wind erosion in the Sahel? by Bergametti, G., Rajot, J. L., Pierre, C., Bouet, C., Marticorena, B.

“…Simultaneous measurements of saltation, wind speed, and rainfall performed in Niger before, during, and after 18 rain events are used to investigate how rain…”
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Global Iron Connections Between Desert Dust, Ocean Biogeochemistry, and Climate by Jickells, T. D, An, Z. S, Andersen, K. K, Baker, A. R, Bergametti, G, Brooks, N, Cao, J. J, Boyd, P. W, Duce, R. A, Hunter, K. A, Kawahata, H, Kubilay, N, laRoche, J, Liss, P. S, Mahowald, N, Prospero, J. M, Ridgwell, A. J, Tegen, I, Torres, R

“…The environmental conditions of Earth, including the climate, are determined by physical, chemical, biological, and human interactions that transform and…”
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Modeling mineral dust emissions from the Sahara desert using new surface properties and soil database by Laurent, B., Marticorena, B., Bergametti, G., Léon, J. F., Mahowald, N. M.

“…The present study investigates the mineral dust emissions and the occurrence of dust emission events over the Sahara desert from 1996 to 2001. Mineral dust…”
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Wet Deposition Fluxes of Mineral Dust and Their Relation With Cold Pools in the Central Sahel by Audoux, T., Laurent, B., Marticorena, B., Bergametti, G., Rajot, J. L., Féron, A., Gaimoz, C.

“…Based on a large number of in‐situ measurements performed over a 9‐years period in two Sahelian stations, we investigate the drivers of the dust wet deposition…”
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Tropospheric ozone distributions over Europe during the heat wave in July 2007 observed from infrared nadir spectra recorded by IASI by Eremenko, M., Dufour, G., Foret, G., Keim, C., Orphal, J., Beekmann, M., Bergametti, G., Flaud, J.-M.

“…First partial tropospheric ozone columns (0–6 km) derived from radiances observed by the IASI instrument aboard the MetOp‐A platform over Europe during summer…”
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Modeling saltation intermittency by Dupont, S., Bergametti, G., Marticorena, B., Simoëns, S.

“…In order to investigate the intermittency of the aeolian saltation, a saltation model, forced with instantaneous velocity fields, has been introduced in a…”
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Modeling aeolian erosion in presence of vegetation by Dupont, S., Bergametti, G., Simoëns, S.

“…Semiarid landscapes are characterized by vegetated surfaces. Understanding the impact of vegetation on aeolian soil erosion is important for reducing soil…”
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The Respective Roles of Wind Speed and Green Vegetation in Controlling Sahelian Dust Emission During the Wet Season by Bergametti, G., Marticorena, B., Rajot, J. L., Siour, G., Féron, A., Gaimoz, C., Coman, A., Chatenet, B., Coulibaly, M., Maman, A., Koné, I., Zakou, A.

“…Based on 10 years of continuous measurements of wind speed, rainfall, and PM10 concentrations (i.e., concentrations of the particulate matter having a diameter…”
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An aerodynamic roughness length map derived from extended Martian rock abundance data by Hébrard, E., Listowski, C., Coll, P., Marticorena, B., Bergametti, G., Määttänen, A., Montmessin, F., Forget, F.

“…Many boundary layer processes simulated within a Mars General Circulation Model (MGCM), including the description of the processes controlling dust rising from…”
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Near‐surface dust flux enrichment in small particles during erosion events by Dupont, S., Alfaro, S. C., Bergametti, G., Marticorena, B.

“…Mineral dust in the atmosphere impacts Earth's radiative budget and biogeochemical cycles. Sorting of dust‐sized particles within the first few meters above…”
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Introduction to special section: Outstanding problems in quantifying the radiative impacts of mineral dust by Sokolik, I. N., Winker, D. M., Bergametti, G., Gillette, D. A., Carmichael, G., Kaufman, Y. J., Gomes, L., Schuetz, L., Penner, J. E.

“…This paper provides an introduction to the special section of the Journal of Geophysical Research on mineral dust. We briefly review the current experimental…”
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Simulation of the mineral dust emission frequencies from desert areas of China and Mongolia using an aerodynamic roughness length map derived from the POLDER/ADEOS 1 surface products by Laurent, B., Marticorena, B., Bergametti, G., Chazette, P., Maignan, F., Schmechtig, C.

“…To determine the location of the potential dust source regions and to evaluate the dust emission frequencies over the arid and semiarid areas of China and…”
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Parametrization of the increase of the aeolian erosion threshold wind friction velocity due to soil moisture for arid and semi-arid areas by FECAN, F, MARTICORENA, B, BERGAMETTI, G

“…Large-scale simulation of the soil-derived dust emission in semi-arid regions needs to account for the influence of the soil moisture on the wind erosion…”
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Impact of vegetation and soil moisture seasonal dynamics on dust emissions over the Sahel by Pierre, C., Bergametti, G., Marticorena, B., Mougin, E., Bouet, C., Schmechtig, C.

“…To address the challenging issue of estimating mineral dust emissions from the semi‐arid Sahel, a modeling approach is developed by combining two specific…”
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Influence of Atmospheric Stability on the Size Distribution of the Vertical Dust Flux Measured in Eroding Conditions Over a Flat Bare Sandy Field by Khalfallah, B., Bouet, C., Labiadh, M.T., Alfaro, S.C., Bergametti, G., Marticorena, B., Lafon, S., Chevaillier, S., Féron, A., Hease, P., Henry des Tureaux, T., Sekrafi, S., Zapf, P., Rajot, J.L.

“…In spite of their importance for the modeling of the atmospheric cycle of mineral dust, measurements of the intensity and size distribution of the dust…”
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Intercomparison of SCIAMACHY nitrogen dioxide observations, in situ measurements and air quality modeling results over Western Europe by Blond, N., Boersma, K. F., Eskes, H. J., van der A, R. J., Van Roozendael, M., De Smedt, I., Bergametti, G., Vautard, R.

“…The Scanning Imaging Absorption Spectrometer for Atmospheric Cartography (SCIAMACHY) satellite spectrometer provides detailed information on the nitrogen…”
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Assimilation of IASI partial tropospheric columns with an Ensemble Kalman Filter over Europe by Coman, A, Foret, G, Beekmann, M, Eremenko, M, Dufour, G, Gaubert, B, Ung, A, Schmechtig, C, Flaud, J.-M, Bergametti, G

“…Partial lower tropospheric ozone columns provided by the IASI (Infrared Atmospheric Sounding Interferometer) instrument have been assimilated into a…”
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Dissimilarity Between Dust, Heat, and Momentum Turbulent Transports During Aeolian Soil Erosion by Dupont, S., Rajot, J.‐L., Labiadh, M., Bergametti, G., Lamaud, E., Irvine, M. R., Alfaro, S. C., Bouet, C., Fernandes, R., Khalfallah, B., Marticorena, B., Bonnefond, J. M., Chevaillier, S., Garrigou, D., Henry‐des‐Tureaux, T., Sekrafi, S., Zapf, P.

“…Measuring accurately size‐resolved dust flux near the surface is crucial for better quantifying dust losses by semiarid soils. Dust fluxes have been usually…”
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Modeling wind erosion flux and its seasonality from a cultivated sahelian surface: A case study in Niger by Pierre, C., Bergametti, G., Marticorena, B., AbdourhamaneTouré, A., Rajot, J.-L., Kergoat, L.

“…Wind erosion can strongly affect the cultivated areas in semi-arid regions, through soil losses and/or decrease in nutrient contents. Additionally, dust…”
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