Articles | Volume 17, issue 15
https://doi.org/10.5194/acp-17-9645-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-17-9645-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
10 Aug 2017
Research article |
| 10 Aug 2017
Importance of the Saharan heat low in controlling the North Atlantic free tropospheric humidity budget deduced from IASI δD observations
Jean-Lionel Lacour
CORRESPONDING AUTHOR
UPMC Univ. Paris 06; Université Versailles St-Quentin, LATMOS-IPSL, Paris, France
Institute of Earth Sciences, University of Iceland, Reykjavik, Iceland
Cyrille Flamant
UPMC Univ. Paris 06; Université Versailles St-Quentin, LATMOS-IPSL, Paris, France
Camille Risi
UPMC Univ. Paris 06; UMR8539, CNRS/INSU, LMD-IPSL, Paris, France
Cathy Clerbaux
UPMC Univ. Paris 06; Université Versailles St-Quentin, LATMOS-IPSL, Paris, France
Spectroscopie de l'Atmosphère, Service de Chimie Quantique et Photophysique, Université Libre de Bruxelles (ULB), Brussels, Belgium
Pierre-François Coheur
Spectroscopie de l'Atmosphère, Service de Chimie Quantique et Photophysique, Université Libre de Bruxelles (ULB), Brussels, Belgium
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16 citations as recorded by crossref.
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- What Controls the Mesoscale Variations in Water Isotopic Composition Within Tropical Cyclones and Squall Lines? Cloud Resolving Model Simulations in Radiative‐Convective Equilibrium C. Risi et al. 10.1029/2022MS003331
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- Water isotopic constraints on the enhancement of the mid-Holocene West African monsoon A. Thompson et al. 10.1016/j.epsl.2020.116677
- Improving weather forecasting by assimilation of water vapor isotopes M. Tada et al. 10.1038/s41598-021-97476-0
- Is the Isotopic Composition of Precipitation a Robust Indicator for Reconstructions of Past Tropical Cyclones Frequency? A Case Study on Réunion Island From Rain and Water Vapor Isotopic Observations F. Vimeux et al. 10.1029/2023JD039794
- Identifying key stages of radiation fog evolution using water vapor isotopes Y. Li et al. 10.1016/j.agrformet.2023.109430
- Contrasting stable water isotope signals from convective and large-scale precipitation phases of a heavy precipitation event in southern Italy during HyMeX IOP 13: a modelling perspective K. Lee et al. 10.5194/acp-19-7487-2019
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- Unravelling the transport of moisture into the Saharan Air Layer using passive tracers and isotopes F. Dahinden et al. 10.1002/asl.1187
- Satellite-Based Distribution of Inverse Altitude Effect of Global Water Vapor Isotopes: Potential Influences on Isotopes in Climate Proxies G. Yang et al. 10.3390/rs15184533
- Assessing the potential of free-tropospheric water vapour isotopologue satellite observations for improving the analyses of convective events M. Schneider et al. 10.5194/amt-17-5243-2024
16 citations as recorded by crossref.
- Controls on the water vapor isotopic composition near the surface of tropical oceans and role of boundary layer mixing processes C. Risi et al. 10.5194/acp-19-12235-2019
- A Framework to Study Mixing Processes in the Marine Boundary Layer Using Water Vapor Isotope Measurements M. Benetti et al. 10.1002/2018GL077167
- A Lagrangian Perspective on Stable Water Isotopes During the West African Monsoon C. Diekmann et al. 10.1029/2021JD034895
- What Controls the Mesoscale Variations in Water Isotopic Composition Within Tropical Cyclones and Squall Lines? Cloud Resolving Model Simulations in Radiative‐Convective Equilibrium C. Risi et al. 10.1029/2022MS003331
- What Controls the Water Vapor Isotopic Composition Near the Surface of Tropical Oceans? Results From an Analytical Model Constrained by Large‐Eddy Simulations C. Risi et al. 10.1029/2020MS002106
- Stable water isotope signals in tropical ice clouds in the West African monsoon simulated with a regional convection-permitting model A. de Vries et al. 10.5194/acp-22-8863-2022
- First data set of H2O/HDO columns from the Tropospheric Monitoring Instrument (TROPOMI) A. Schneider et al. 10.5194/amt-13-85-2020
- Water isotopic constraints on the enhancement of the mid-Holocene West African monsoon A. Thompson et al. 10.1016/j.epsl.2020.116677
- Improving weather forecasting by assimilation of water vapor isotopes M. Tada et al. 10.1038/s41598-021-97476-0
- Is the Isotopic Composition of Precipitation a Robust Indicator for Reconstructions of Past Tropical Cyclones Frequency? A Case Study on Réunion Island From Rain and Water Vapor Isotopic Observations F. Vimeux et al. 10.1029/2023JD039794
- Identifying key stages of radiation fog evolution using water vapor isotopes Y. Li et al. 10.1016/j.agrformet.2023.109430
- Contrasting stable water isotope signals from convective and large-scale precipitation phases of a heavy precipitation event in southern Italy during HyMeX IOP 13: a modelling perspective K. Lee et al. 10.5194/acp-19-7487-2019
- Disentangling different moisture transport pathways over the eastern subtropical North Atlantic using multi-platform isotope observations and high-resolution numerical modelling F. Dahinden et al. 10.5194/acp-21-16319-2021
- Unravelling the transport of moisture into the Saharan Air Layer using passive tracers and isotopes F. Dahinden et al. 10.1002/asl.1187
- Satellite-Based Distribution of Inverse Altitude Effect of Global Water Vapor Isotopes: Potential Influences on Isotopes in Climate Proxies G. Yang et al. 10.3390/rs15184533
- Assessing the potential of free-tropospheric water vapour isotopologue satellite observations for improving the analyses of convective events M. Schneider et al. 10.5194/amt-17-5243-2024
Latest update: 24 Apr 2025
Short summary
We present temporal and spatial δD distributions derived from IASI obtained above the North Atlantic in the vicinity of West Africa. We show that the seasonality of δD in the North Atlantic is closely associated with the influence of the Saharan heat low (SHL). We provide an interpretation of the temporal and spatial variations in δD and show that the interactions between the large-scale subsidence, the ITCZ, and the SHL can be disentangled thanks to the added information contained in δD.
We present temporal and spatial δD distributions derived from IASI obtained above the North...
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