Search Results - "Schmechtig, C."

Deep Chlorophyll Maxima in the Global Ocean: Occurrences, Drivers and Characteristics by Cornec, M., Claustre, H., Mignot, A., Guidi, L., Lacour, L., Poteau, A., D'Ortenzio, F., Gentili, B., Schmechtig, C.

“…Stratified oceanic systems are characterized by the presence of a so‐called Deep Chlorophyll a Maximum (DCM) not detectable by ocean color satellites. A DCM…”
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Global Variability of Optical Backscattering by Non‐algal particles From a Biogeochemical‐Argo Data Set by Bellacicco, M., Cornec, M., Organelli, E., Brewin, R. J. W., Neukermans, G., Volpe, G., Barbieux, M., Poteau, A., Schmechtig, C., D'Ortenzio, F., Marullo, S., Claustre, H., Pitarch, J.

“…Understanding spatial and temporal dynamics of non‐algal particles in open ocean is of the utmost importance to improve estimations of carbon export and…”
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A neural network‐based method for merging ocean color and Argo data to extend surface bio‐optical properties to depth: Retrieval of the particulate backscattering coefficient by Sauzède, R., Claustre, H., Uitz, J., Jamet, C., Dall'Olmo, G., D'Ortenzio, F., Gentili, B., Poteau, A., Schmechtig, C.

“…The present study proposes a novel method that merges satellite ocean color bio‐optical products with Argo temperature‐salinity profiles to infer the vertical…”
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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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Airborne observations of mineral dust over western Africa in the summer Monsoon season: spatial and vertical variability of physico-chemical and optical properties by Formenti, P., Rajot, J. L., Desboeufs, K., Saïd, F., Grand, N., Chevaillier, S., Schmechtig, C.

“…We performed airborne measurements of aerosol particle concentration, composition, size distribution and optical properties over Western Africa in the corridor…”
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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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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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Characterization of Bio‐Optical Anomalies in the Kerguelen Region, Southern Indian Ocean: A Study Based on Shipborne Sampling and BioGeoChemical‐Argo Profiling Floats by Uitz, J., Roesler, C., Organelli, E., Claustre, H., Penkerc'h, C., Drapeau, S., Leymarie, E., Poteau, A., Schmechtig, C., Dimier, C., Ras, J., Xing, X., Blain, S.

“…The Southern Ocean (SO) is known for its atypical bio‐optical regime. This complicates the interpretation of proxies measured from satellite and in situ…”
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Simulation of the mineral dust content over Western Africa from the event to the annual scale with the CHIMERE-DUST model by Schmechtig, C, Marticorena, B, Chatenet, B, Bergametti, G, Rajot, J L, Coman, A

“…The chemistry and transport model CHIMERE-DUST have been used to simulate the mineral dust cycle over the Sahara in 2006. Surface measurements deployed during…”
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Vertical distribution of chlorophyll a concentration and phytoplankton community composition from in situ fluorescence profiles: a first database for the global ocean by Sauzède, R, Lavigne, H, Claustre, H, Uitz, J, Schmechtig, C, D'Ortenzio, F, Guinet, C, Pesant, S

“…In vivo chlorophyll a fluorescence is a proxy of chlorophyll a concentration, and is one of the most frequently measured biogeochemical properties in the…”
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The representation of dust transport and missing urban sources as major issues for the simulation of PM episodes in a Mediterranean area by Flaounas, E., Coll, I., Armengaud, A., Schmechtig, C.

“…Due to its adverse effects on human health, atmospheric particulate matter (PM) constitutes a growing challenge for air quality management. It is also a…”
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Mineral dust over west and central Sahel: Seasonal patterns of dry and wet deposition fluxes from a pluriannual sampling (2006–2012) by Marticorena, B., Chatenet, B., Rajot, J. L., Bergametti, G., Deroubaix, A., Vincent, J., Kouoi, A., Schmechtig, C., Coulibaly, M., Diallo, A., Koné, I., Maman, A., NDiaye, T., Zakou, A.

“…Total and wet mineral dust deposition has been monitored since 2006 at three Sahelian stations in Senegal, Mali, and Niger, respectively at the weekly and the…”
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An ensemble assessment of regional ozone model uncertainty with an explicit error representation by Boynard, A., Beekmann, M., Foret, G., Ung, A., Szopa, S., Schmechtig, C., Coman, A.

“…In this paper, we examine the extent to which an ensemble generated from a single air quality model correctly represents the global uncertainty of ozone…”
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Evaluating the potential of IASI ozone observations to constrain simulated surface ozone concentrations by Foret, G., Hamaoui, L., Schmechtig, C., Eremenko, M., Keim, C., Dufour, G., Boynard, A., Coman, A., Ung, A., Beekmann, M.

“…A tracer study has been performed for two summers in 2003 and 2004 with a regional chemistry-transport model in order to evaluate the potential constraint that…”
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Statistical relationship between surface PM10 concentration and aerosol optical depth over the Sahel as a function of weather type, using neural network methodology by Yahi, H., Marticorena, B., Thiria, S., Chatenet, B., Schmechtig, C., Rajot, J. L., Crepon, M.

“…This work aims at assessing the capability of passive remote‐sensed measurements such as aerosol optical depth (AOD) to monitor the surface dust concentration…”
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Surface pressure estimates from satellite data in the oxygen A-band: Applications to the MOS sensor over land by Dubuisson, P., Borde, R., Schmechtig, C., Santer, R.

“…A fast method for the Apparent Pressure Retrieval (APR method) over land from satellite data, based on a two band ratio in the oxygen A‐band (759–770 nm), is…”
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Extension of the DDV concept to retrieve aerosol properties over land from the Modular Optoelectronic Scanner (MOS) sensor by Borde, R., Ramon, D., Schmechtig, C., Santer, R.

“…Air pollution and aerosol characteristics are of considerable interest to studies in climate change and air quality. Although the reference methodology will…”
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Sensitivity analysis for the aerosol retrieval over land for MERIS by Schmechtig, C., Carre're, V., Dubuisson, P., Roger, J. C., Santer, R.

“…The inversion of aerosol characteristics over DDV (Dark Dense Vegetation) targets is an intermediate and important step whenever atmospheric correction over…”
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Bio-optical characterization of subsurface chlorophyll maxima in the Mediterranean Sea from a Biogeochemical-Argo float database by Barbieux, Marie, Uitz, Julia, Gentili, Bernard, Pasqueron de Fommervault, Orens, Mignot, Alexandre, Poteau, Antoine, Schmechtig, Catherine, Taillandier, Vincent, Leymarie, Edouard, Penkerc'h, Christophe, D'Ortenzio, Fabrizio, Claustre, Hervé, Bricaud, Annick

“…As commonly observed in oligotrophic stratified waters, a subsurface (or deep) chlorophyll maximum (SCM) frequently characterizes the vertical distribution of…”
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Biological production in two contrasted regions of the Mediterranean Sea during the oligotrophic period: an estimate based on the diel cycle of optical properties measured by BioGeoChemical-Argo profiling floats by Barbieux, Marie, Uitz, Julia, Mignot, Alexandre, Roesler, Collin, Claustre, Hervé, Gentili, Bernard, Taillandier, Vincent, D'Ortenzio, Fabrizio, Loisel, Hubert, Poteau, Antoine, Leymarie, Edouard, Penkerc'h, Christophe, Schmechtig, Catherine, Bricaud, Annick

“…This study assesses marine community production based on the diel variability of bio-optical properties monitored by two BioGeoChemical-Argo (BGC-Argo) floats…”
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