1 Radiative-convective equilibrium using GCM column physics (2009)
Isaac M. Held, Ming Zhao, Bruce Wyman
Abstract. The behavior of a GCM column physics package in a non-rotating, doubly periodic, homogeneous setting with prescribed SSTs is examined. This radiative-convective framework is proposed as a...
Submitted (01/23/09), Journal of Climate (2009)
Ming Zhao, Isaac M. Held, Shian-jiann Lin, Gabriel A. Vecchi, Dr. Ming Zhao
A global atmospheric model with roughly 50 km horizontal grid spacing is used to simulate the interannual variability of tropical cyclones using observed sea surface temperatures (SSTs) as the lower...
2006: GFDL’s CM2 global coupled climate models. Part II: The baseline ocean simulation (2009)
Anand Gnanadesikan, Keith W. Dixon, Stephen M. Griffies, V. Balaji, Marcelo Barreiro, J. Anthony Beesley, ...
1DECEMBER 2006 CORRIGENDUM 6263 CORRIGENDUM (2009)
There is an error in Fig. 1 of Soden and Held (2006), which displays the values of climate feedbacks from various models. The column of data labeled All in this figure was intended to contain the sum...
Rong Zhang, Thomas L. Delworth, Isaac M. Held
temperature has clearly warmed over the 20th century due in large part to increasing greenhouse gases, this warming has not been monotonic. The departures from steady warming on multidecadal...
Olivier Pauluis, Isaac M. Held
In moist convection, atmospheric motions transport water vapor from the earth’s surface to the regions where condensation occurs. This transport is associated with three other aspects of...
Abrupt transitions to strongly superrotating states have been found in some idealized models of the troposphere. These transitions are thought to be caused by feedbacks between the eddy momentum flux...
Accepted Journal of Climate (2008)
Brian J. Soden, Isaac M. Held, Robert Colman, Karen M. Shell, Jeffrey T. Kiehl, Christine A. Shields
The extent to which the climate will change due to an external forcing depends largely on radiative feedbacks, which act to amplify or damp the surface temperature response. There are a variety of...
Progress and Problems in Large-Scale Atmospheric Dynamics (2008)
Edited Tapio Schneider, Adam H. Sobel, Isaac M. Held
by any electronic or mechanical means (including photocopying, recording, or information storage and retrieval) without permission in writing from the publisher, except for reading and browsing via...
R. Knutson, Joseph J. Sirutis, Stephen T. Garner, Isaac M. Held, E. Tuleya
A new 18-km-grid regional model successfully reproduces the observed multidecadal increase and interannual variations of Atlantic hurricane activity since 1980, using large-scale interior nudging...
forcing: idealized slab-ocean experiments with a (2008)
Sarah M. Kang, Isaac M. Held, Ming Zhao
response of the ITCZ to extratropical thermal
Phase speed spectra and the recent poleward shift of Southern Hemisphere surface westerlies (2008)
[1] The poleward shift of the Southern Hemisphere surface westerlies in recent decades is examined in reanalysis data and in the output of coupled atmosphere-ocean and uncoupled atmospheric models....
Revised, Journal of the Atmospheric Sciences (2008)
Isaac M. Held, Ming Zhao, Dr. Isaac M. Held
Rotating radiative-convective equilibrium, using the column physics and resolution of GCMs, is proposed as a useful framework for studying the tropical storm-like vortices produced by global models....
Quantifying Climate Feedbacks Using Radiative Kernels (2008)
Brian J. Soden, Isaac M. Held, Robert Colman, Karen M. Shell, Jeffrey T. Kiehl, Christine A. Shields
The Slope of Isentropes in the Extratropical Troposphere (2007)
Tapio Schneider, Isaac M. Held
Introduction. The static stability @ z ¯ ` and the meridional gradient @ y ¯ ` of the longitudinally averaged potential temperature ¯ ` both play prominent roles in theories for baroclinic eddy...
Tapio Schneider, Isaac M. Held
We present an approach to identifying climate changes that does not hinge on simulations of natural climate variations or anthropogenic changes. We decompose observed interdecadal climate variations...
2002: The ENSO signal in tropical tropospheric temperature (2007)
Adam H. Sobel, Isaac M. Held, Christopher S. Bretherton
The authors address the interannual signal in the tropical mean temperature of the free tro-posphere. This signal was shown by Soden to be well simulated by a wide range of general circulation...
2000: Water vapor feedback and global warming (2007)
Water vapor is the dominant greenhouse gas, the most important gaseous source of infrared opacity in the atmosphere. As the concentrations of other greenhouse gases, particularly carbon dioxide,...
Rotating radiative–convective equilibrium, using the column physics and resolution of GCMs, is proposed as a useful framework for studying the tropical storm–like vortices produced by global...
A global climate system perspective on African environmental change (2006)
Alessandra Giannini, Michela Biasutti, Isaac M. Held, Adam H. Sobel
Abstract. We review recent advances and current challenges in African climate research and offer a global climate context in which to interpret African environmental change. We classify the various...
Myong-in Lee, Siegfried D. Schubert, Max J. Suarez, Isaac M. Held, Arun Kumar, Thomas L. Bell, ...
This study examines the sensitivity of the North American warm season diurnal cycle of precipitation to changes in horizontal resolution in three atmospheric general circulation models, with a...
Boundary effects in potential vorticity dynamics (2003)
Schneider, Tapio, Held, Isaac M., Garner, Stephen T.
Many aspects of geophysical flows can be described compactly in terms of potential vorticity dynamics. Since potential temperature can fluctuate at boundaries, however, the boundary conditions for...
Affiliation Noaa/gfdl, New Jersey, Thomas L. Delworth, Keith W. Dixon, Leo J. Donner, Stuart M. Freidenreich, ...
Northern winter stationary waves: Theory and modeling (2002)
Isaac M. Held, Mingfang Ting, Hailan Wang
A review is provided of stationary wave theory, the theory for the deviations from zonal symmetry of the climate. To help focus the discussion the authors concentrate exclusively on northern winter....
Discriminants of Twentieth-Century Changes in Earth Surface Temperatures (2001)
Schneider, Tapio, Held, Isaac M.
An approach to identifying climate changes is presented that does not hinge on simulations of natural climate variations or anthropogenic changes. Observed interdecadal climate variations are...
� 2003 American Meteorological Society Boundary Effects in Potential Vorticity Dynamics (2001)
Many aspects of geophysical flows can be described compactly in terms of potential vorticity dynamics. Since potential temperature can fluctuate at boundaries, however, the boundary conditions for...
Adam H. Sobel, Isaac M. Held, Christopher S. Bretherton
Interannual anomalies in tropical tropospheric temperature have been shown to be related to interannual anomalies in tropical mean sea surface temperature (SST) by a simple moist adiabatic...
The Partitioning of the Poleward Energy Transport between the Tropical Ocean and Atmosphere (2000)
The mass transport in the shallow, wind-driven, overturning cells in the tropical oceans is constrained to be close to the mass transport in the atmospheric Hadley cell, assuming that zonally...
Paul J. Kushner, Isaac M. Held, L. Delworth
The response of the Southern Hemisphere (SH), extratropical, atmospheric general circulation to transient, anthropogenic, greenhouse warming is investigated in a coupled climate model. The...
LETTERS Discriminants of Twentieth-Century Changes in Earth Surface Temperatures (2000)
Tapio Schneider, Isaac M. Held
An approach to identifying climate changes is presented that does not hinge on simulations of natural climate variations or anthropogenic changes. Observed interdecadal climate variations are...
The Surface Branch of the Zonally Averaged Mass Transport Circulation in the Troposphere (1999)
Held, Isaac M., Schneider, Tapio
The near-surface branch of the overturning mass transport circulation in the troposphere, containing the equatorward flow, is examined in isentropic and geometric coordinates. A discussion of the...
In its millennial session, the GED program focused on "The General Circulation of the Atmosphere." Isaac Held led the charge with an inspiring two-week introductory course, strongly supported by the...
Isaac M. Held, Tapio Schneider
The near-surface branch of the overturning mass transport circulation in the troposphere, containing the equatorward flow, is examined in isentropic and geometric coordinates. A discussion of the...
A linear stochastic model is used to simulate the midlatitude storm tracks produced by an atmospheric GCM. A series of six perpetual insolation/SST GCM experiments are first performed for each month....
Olivier Pauluis, Isaac M. Held
work and frictional dissipation.
Olivier Pauluis, Isaac M. Held
The entropy budget of an atmosphere in radiative–convective equilibrium is analyzed here. The differential heating of the atmosphere, resulting from surface heat fluxes and tropospheric radiative...
Kyle L. Swanson, J. Kushner, Isaac M. Held
Longitudinal variations in the upper-tropospheric time-mean flow strongly modulate the structure and amplitude of upper-tropospheric eddies. This barotropic modulation is studied using simple models...
A Scaling Theory for Horizontally Homogeneous, Baroclinically Unstable Flow on a Beta-Plane (1995)
Held, Isaac M., Larichev, Vitaly D.
The scaling argument developed by Larichev and Held (1995) for eddy amplitudes and fluxes in a horizontally homogeneous, two-layer model on an f-plane is extended to a beta-plane. In terms of the...
ICARUS 50, 449--461 (1982) Climate Models and the Astronomical Theory of the Ice Ages:;` (1981)
Attempts at determining the climatic response to perturbations in the Earth's orbital parameters are reviewed, The relationship between equilibrium and nonequilibrium responses and its...