Natalie Mahowald

I am a scientist in the Terrestrial Sciences Section of the National Center for Atmospheric Research's Climate and Global Dynamics Division. My research is focused on atmospheric transport of biogeochemically important species such as desert dust.

Mailing Address

National Center for Atmospheric Research

P.O. Box 3000

Boulder, Colorado, USA 80307-3000

Or for fedex:

1850 Table Mesa Drive

Boulder, Colorado, USA 80305

Phone 303-497-1719; fax: 303-497-1685; email: mahowald@ucar.edu

Research Topics

·  Desert dust and biogeochemical feedbacks

·  Transport and transport modeling

 

Datasets available (please email Mahowald@ucar.edu, web pages not yet ready).

Dust deposition

Current climate:

·        Dust deposition datasets for current climate (1979-2004 daily averaged, monthly averaged or climatology available from Luo et al., 2003; Mahowald et al., 2003).

 

·        Composite of Ginoux et al., 2004, Tegen et al., 2004 and Luo et al., 2003 as a monthly average available (described in Mahowald et al., in press, atmospheric iron review paper).

 

Different climate regimes

·        LGM vs. Current (Mahowald et al., 1999)

·        Current, pre-industrial and 2100, using 6 different scenarios (Mahowald and Luo, 2003)

·        LGM, preindustrial, current and doubled CO2 climates (Mahowald et al., submitted)

 

 

 

 

Young Scientist Network for AIMES: Encouraging collaboration among young scientists working on integrative earth system modeling, especially including biogeochemistry and human decision making.  For more information: http://www.cgd.ucar.edu/tss/staff/mahowald/ysn

 

In prep papers and submitted papers (comments are welcome!):

Impact of Desert Dust Radiative Forcing on Sahel Precipitation: Relative importance of dust compared to sea surface temperature variations, vegetation changes and greenhouse gas warming Masaru Yoshioka, Natalie M. Mahowald, Andrew J. Conley, William D. Collins, David W. Fillmore, Charles S. Zender, and Dani B. Coleman, submitted to Journal of Climate,  Text and Figures

Climate response and radiative forcing from mineral aerosols during the last glacial maximum, pre-industrial, current and doubled-carbon dioxide climates by N. Mahowald, M. Yoshioka, W. Collins, A. Conley, D. Fillmore, D. Coleman, submitted to GRL, Text and Figures, online supplement text.

 

Accepted/In Press Papers

Characteristics of atmospheric transport using three numerical formulations for atmospheric dynamics in a single GCM framework, P. Rasch, D. Coleman, N. Mahowald, D. Williamson, S.-J. Lin, B. Boville, P. Hess, in press J. of Climate.

Published papers

Mahowald, N. M., D. R. Muhs, S. Levis, P. J Rasch, M. Yoshioka, C. S. Zender, and C. Luo (2006), Change in atmospheric mineral aerosols in response to climate: Last glacial period, preindustrial, modern, and doubled carbon dioxide climates, J. Geophys. Res., 111, D10202, doi:10.1029/2005JD006653. AGU copyright. Text + figures, online supplement

Sea salt aerosol response to climate change: last glacial maximum, pre-industrial and doubled carbon dioxide climates, N. Mahowald, J.-F. Lamarque, X. Tie, E. Wolff, JGR-Atmospheres, (111), D05303, doi:10.1029/2005JD006459, 2006. text and color figures.

Barth, M., J. McFadden, J. Sun, C. Wiedinmyer, P. Chuang, D. Collins, R. Griffin, M. Hannigan, T. Karl, S-W Kim, S. Lasher-Trapp, S. Levis, M. Litvak, N. Mahowald, K. Moore, S. Nandi, E. Nemitz, A. Nenes, M. Potosnak, T. Raymond, J. Smith, C. Still, C. Stroud,  Coupling between land ecosystems and the atmospheric hydrologic cycle through biogenic aerosol pathways, Bull. Amer. Meteor. Soc., 86(12), 1738-1742, 2005. AMS copyright.

Mahowald, N.; Artaxo, P.; Baker, A.; Jickells, T.; Okin, G.; Randerson, J.; Townsend, A. Impacts of biomass burning emissions and land use change on Amazonian atmospheric phosphorus cycling and deposition, Global Biogeochem. Cycles, Vol. 19, No. 4, GB4030, 10.1029/2005GB002541, 2005.

 text and color figures  AGU copyright version.

Mahowald, N.; Baker, A.; Bergametti, G.; Brooks, N.; Duce, R.; Jickells, T.; Kubilay, N.; Prospero, J.; Tegen, I.Atmospheric global dust cycle and iron inputs to the ocean Global Biogeochem. Cycles, Vol. 19, No. 4, GB4025,10.1029/2004GB002402, 2005.

text and color figures, online supplement.  AGU copyright version.

 

C. Luo, N. Mahowald, N. Meskhidze, Y. Chen, R. Siefert, A. Baker, A. Johansen, Estimation of iron solubility from observations and a global aerosol model, J. Geophys. Res., 110, D23307, doi:10.1029/2005JD006059 , text and figures (tar file)

M. Yoshioka, N. Mahowald, J.-L. Dufresne, and C. Luo,  Simulation of absorbing aerosol indices for African dust, JGR-atmospheres, 110, D18S17, doi:10.1029/2004JD005276, 2005 Text and b/w and color figures , copyright AGU.

T.D. Jickells, An Z. S. , K. K. Andersen , A.R. Baker, G. Bergametti , N. Brooks , Cao J.J. , P. W. Boyd , R.A. Duce , K.A. Hunter , H. Kawahata , N. Kubilay , J. laRoche, P.S. Liss , N. Mahowald , J. M. Prospero , A.J. Ridgwell , I. Tegen , R. Torres, Global Iron Connections  Between Desert Dust, Ocean Biogeochemistry and Climate, Science, 308, p67-71, 2005.

 

E. Boyle, B. Bergquist, R. Kayser, N. Mahowald, Iron, Manganese and Lead at Hawaii Ocean Time-Series Station ALOHA: Temporal Variability and an Intermediate Water Hydrothermal Plume, Geochimica Cosmochimica Acta. 69 (4), Doi: 10.1016/j.gca.2004.07.034, 933-952,2005.

 

Mahowald, N., G. Rivera, C. Luo, Comment on “Relative importance of climate and land use in determining present and future global soil dust emission” by I. Tegen et al. Geophys. Res. Lett., Vol. 31, No. 24, L24105, 10.1029/2004GL021272, 30 December 2004, Text copyright AGU, 2004.

 

C. Luo, N. Mahowald and C. Jones, JGR-Atmospheres, Temporal variability of dust mobilization and concentration in source regions,  VOL. 109, D20202, doi:10.1029/2004JD004861, 2004, Text and b/w and color figures , copyright AGU 2004.

 

J.L. Hand, N. Mahowald, Y. Chen, R. Siefert, C. Luo, A. Subramaniam, I. Fung, Estimates of soluble iron from observations and a global mineral aerosol model: Biogeochemical implications., JGR-Atmospheres, 109, No. D17, D17205, 10.1029/2004JD004574, Text and b/w and color figures copyright AGU 2004.

 

C. Jones, N. Mahowald, C. Luo, Observational evidence of African desert dust intensification of easterly waves, GRL, 31, L17208, doi:10.1029/2004GL020107, 2004., Text and figures copyright AGU 2004.

G. Okin, N. Mahowald, O. Chadwick, P. Artaxo, The impact of desert dust on the biogeochemistry of phosphorus in terrestrial ecosystems, Global Biogeochemical Cycles,vol 18, GB2005,doi: 10.1029/2003GB002145,2004. Text and b/w and color figures, copyright AGU 2004

N. Mahowald, J.-L. Dufresne, Sensitivity of TOMS AI to PBLH: Implications for detection of mineral aerosol sources, vol. 31 ,no.3., 10.1029/2003GL018865, 2004. Text and color figures copyright AGU 2004

C. Jones, N. Mahowald, C. Luo, The role of easterly waves in African desert dust transport, J. Climate. vol. 16, p. 3617-3628, 2003. Text and b/w figures copyright AMS 2003

N. Mahowald, C. Luo, A less dusty future?, Geophysical Research Letters, vol 30, no 17, 1903 doi:10.1029/2003GL017880,2003. download copyright AGU 2003

C. Luo, N. Mahowald, J. del Corral, Sensitivity study of meteorological parameters on mineral aerosol mobilization, transport and distribution, J. Geophys. Res., 108, D15, 4447, 10.1029/2003JD0003483, August 2, 2003. download copyright AGU 2003

N. Mahowald, C. Luo, J. del Corral, C. Zender, Interannual variability in atmospheric mineral aerosols from a 22-year model simulation and observational data, JGR, 108 (D12), 10.1029/2002JD002821, 2003.download copyright AGU 2003

N. Mahowald, L. Kiehl, Mineral aerosols and cloud interactions, Geophys. Res. Let., 30, No. 9, 10.109/2002GL016762, May, 2003. download copyright AGU 2003

C. Mahaffrey, R. G. Williams, G. A. Wolff, N. Mahowald, W. Anderson, Isotopic signals of nitrogen fixation over the eastern North Atlantic, GRL, vol, 40, No. 6, 10.1019/2002/GL016542, March, 2003. download copyright AGU 2003

Tanguy Claquin. C. Roelandt, K. Kohfeld, S. Harrison, I. Tegen, I. C. Prentice,Y. Balkanski, G. Bergametti, M. Hansson, N. Mahowald, H. Rodhe, M. Schulz, Radiative forcing of climate by ice-age dust, Climate Dynamics (2003) 20:193-202; DOI 10.1007/s00382-002-0269-1.

N. Mahowald, R. Bryant, J. del Corral, L. Steinberger, Ephemeral lakes and desert dust sources, GRL, vol 30, no 2,10.1029/2002GL016041,January, 2003. download copyright 2003 AGU

N. Mahowald, C. Zender, C. Luo, D. Savoie, O. Torres, J. del Corral, Understanding the 30-year Barbados desert dust record, JGR, 10.1029/2002JD002097, 2002, D21, CN:4561. download copyright 2002 AGU

Plumb, R.A., W. Heres, J. L. Neu, N. Mahowald, J. del Corral, G. C. Toon, E. Ray, F. Moore, and A. E. Andrews, Global tracer modeling during SOLVE: high latitude descent and mixing. JGR, 10.1029/2001JD001023, 2002, D5, CN: 8309. download copyright 2002 AGU

N. Mahowald, R. A. Plumb, P. J. Rasch, J. del Corral, F. Sassi and W. Heres, Stratospheric transport in a 3-dimensional isentropic coordinate model, 10.1029/2001JD001313, JGR, 2002, D15,CN:4254. download copyright AGU 2002

D. Archer, A. Winguth, D. Lea, N Mahowald, What caused the glacial/interglaci al atmospheric pCO2 cycles? Reviews of Geophysics, 38 (2): 159-189, 2000. download copyright AGU 2000

P. Rasch, J. Feichter, K. Law, N. Mahowald, J. Penner, et al., A comparison of scavenging and deposition in global models from the WCRP Cambridge Workshop of 1995, Tellus, 52B,1025-1056, 2000.

N. Mahowald, K. Kohfeld, M. Hansson, Y. Balkanski, S. Harrison, C. Prentice, M. Schulz, H. Rodhe, Dust sources and deposition during the last glacial maximum and current climate: A comparison of model results with paleodata from ice cores and marine sediments. Journal of Geophysical Research, 104, 1589 5-15916, 1999.download copyright AGU 1999

M. Lawrence, P. J. Crutzen, P. J. Rasch, B. E. Eaton, N. M. Mahowald, A model for studies of tropospheric photochemistry: Description, global distributions, a nd evaluation, J. Geophys. Res., 1999, 26,245-26,277.

N. Mahowald, R. Prinn and P. Rasch, Deducing CCl3F emissions using an inver se method and a chemical transport model with assimilated winds. Journal of Geophysical Research, 102, 28127-28138, 1997.

N. Mahowald, P. Rasch, B. Eaton, S. Whittlestone and R. Prinn, Transport of 222Radon to the remote troposphere using MATCH and assimilated winds from ECMWF and NCEP/NCAR, Journal of Geophysical Research, 102, 28139-28152, 1997.

P. Rasch, N. Mahowald, and B. Eaton, Representations of transport, convection and the hydrologic cycle in chemical transport models: Implications for the modeling of short lived and soluble species, Journal of Geophysical Research, 102, 28127-28138, 1997.

N. Mahowald, P. Rasch and R. Prinn, Cumulus convection parameterizations in chemical transport models, Journal of Geophysical Research, 100, 26173-26189, 1995.

W. F. Barnard, N. M. Mahowald, Ambient air audits of the national crop loss assessment network 1981-1986, Evironmental Pollution, v. 53, n. 1-4, 412-415, 1988.

Book Chapters

Claire Granier, M. Kanakidou, P. Kasibhatlat, G. Brassuer, C. Clerbaux, F. Dentener, J. Feichter, S. Houweling, B. Bhattatov, J.-F. Lamarque, M. Lawrence, S. MAdronich, N. Mahowald, K. Noone, G. Tyndall, S. Walkters, C. Wang, Chapter 6: Modeling, in Atmospheric Chemistry in a Changing World, editors: G. Brasseur, R. Prinn, A. Pszenny, Springer-Verlag, New York, 2003.

Other Published materials:

Inverse Methods in Globel Biogeochemical Cycles, Washington, DC., AGU, Geophysical Monograph, 114, 324 pgs, Editors: P. Kasibhatla, M. Heiman, P. Raynor, N. Mahowald, R. Prinn, D. Hartley, 2001.


Education

Ph.D. Meteorology, Massachusetts Institute of Technology, 1996

M.S. Resource Policy Analysis, University of Michigan, 1993

B.S. Physics/A.B. German, Washington University, 1988

Post-Doctoral Employment

·         Scientist, Terrestrial Sciences Section, Climate and Global Dynamics Division, National Center for Atmospheric Research, Boulder, Colorado, 10/02-present

·         Assistant Professor, Bren School of Environmental Science and Management, University of California, Santa Barbara, 7/98- 8/2003 (on leave during 2002-2003 academic year).

·         Postdoctoral Researcher, Department of Meteorology, Stockholm University, Sweden 1/97-10/98.

CV word format

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·         Terrestrial Sciences Section home page