Records
Links
Author
Qian, C. ; Fu, C. ; Wu, Z. ; Yan, Z.
Title
The role of changes in the annual cycle in earlier onset of climatic spring in northern China
Type
$loc['typeJournal Article']
Year
2011
Publication
Advances in Atmospheric Sciences
Abbreviated Journal
Adv. Atmos. Sci.
Volume
28
Issue
2
Pages
284-296
Keywords
spring onset ; Ensemble Empirical Mode Decomposition ; modulated annual cycle ; Asian winter monsoon ; global warming
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0256-1530
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
309
Permanent link to this record
Author
Qian, C. ; Yan, Z. ; Wu, Z. ; Fu, C. ; Tu, K.
Title
Trends in temperature extremes in association with weather-intraseasonal fluctuations in eastern China
Type
$loc['typeJournal Article']
Year
2011
Publication
Advances in Atmospheric Sciences
Abbreviated Journal
Adv. Atmos. Sci.
Volume
28
Issue
2
Pages
297-309
Keywords
climate extremes ; EEMD ; weather-intraseasonal fluctuations ; modulated annual cycle ; global warming
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0256-1530
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
310
Permanent link to this record
Author
Hu, Z.-Z. ; Huang, B. ; Kinter, J.L. ; Wu, Z. ; Kumar, A.
Title
Connection of the stratospheric QBO with global atmospheric general circulation and tropical SST. Part II: interdecadal variations
Type
$loc['typeJournal Article']
Year
2012
Publication
Climate Dynamics
Abbreviated Journal
Clim Dyn
Volume
38
Issue
1-2
Pages
25-43
Keywords
Stratospheric QBO ; Tropical Pacific SST ; Interdecadal variation ; Walker circulation ; Tropical deep convection ; ERA40 and NCEP/NCAR reanalyses ; ENSO
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0930-7575
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
260
Permanent link to this record
Author
Wu, Z. ; Huang, N.E. ; Wallace, J.M. ; Smoliak, B.V. ; Chen, X.
Title
On the time-varying trend in global-mean surface temperature
Type
$loc['typeJournal Article']
Year
2011
Publication
Climate Dynamics
Abbreviated Journal
Clim Dyn
Volume
37
Issue
3-4
Pages
759-773
Keywords
Global warming trend ; Multidecadal variability ; Ensemble empirical mode decomposition ; IPCC AR4
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0930-7575
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
299
Permanent link to this record
Author
Huang, B. ; Hu, Z.-Z. ; Kinter, J.L. ; Wu, Z. ; Kumar, A.
Title
Connection of stratospheric QBO with global atmospheric general circulation and tropical SST. Part I: methodology and composite life cycle
Type
$loc['typeJournal Article']
Year
2012
Publication
Climate Dynamics
Abbreviated Journal
Clim Dyn
Volume
38
Issue
1-2
Pages
1-23
Keywords
Stratospheric QBO ; Tropical Pacific SST ; Walker circulation ; Deep convection ; Atmospheric stability ; ERA40 and NCEP/NCAR reanalyses
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0930-7575
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
259
Permanent link to this record
Author
Huang, B. ; Hu, Z.-Z. ; Schneider, E.K. ; Wu, Z. ; Xue, Y. ; Klinger, B.
Title
Influences of tropical-extratropical interaction on the multidecadal AMOC variability in the NCEP climate forecast system
Type
$loc['typeJournal Article']
Year
2012
Publication
Climate Dynamics
Abbreviated Journal
Clim Dyn
Volume
39
Issue
3-4
Pages
531-555
Keywords
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0930-7575
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
244
Permanent link to this record
Author
Chen, X. ; Zhang, Y. ; Zhang, M. ; Feng, Y. ; Wu, Z. ; Qiao, F. ; Huang, N.E.
Title
Intercomparison between observed and simulated variability in global ocean heat content using empirical mode decomposition, part I: modulated annual cycle
Type
$loc['typeJournal Article']
Year
2013
Publication
Climate Dynamics
Abbreviated Journal
Clim Dyn
Volume
41
Issue
11-12
Pages
2797-2815
Keywords
Ocean heat content ; Modulated annual cycle ; Empirical mode decomposition ; Instantaneous frequency ; Instantaneous amplitude ; CMIP3
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0930-7575
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
209
Permanent link to this record
Author
Misra, V. ; Li, H. ; Wu, Z. ; DiNapoli, S.
Title
Global seasonal climate predictability in a two tiered forecast system: part I: boreal summer and fall seasons
Type
$loc['typeJournal Article']
Year
2014
Publication
Climate Dynamics
Abbreviated Journal
Clim Dyn
Volume
42
Issue
5-6
Pages
1425-1448
Keywords
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0930-7575
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
142
Permanent link to this record
Author
Hu, X. ; Cai, M. ; Yang, S. ; Wu, Z.
Title
Delineation of thermodynamic and dynamic responses to sea surface temperature forcing associated with El Niño
Type
$loc['typeJournal Article']
Year
2018
Publication
Climate Dynamics
Abbreviated Journal
Clim Dyn
Volume
51
Issue
11-12
Pages
4329-4344
Keywords
El Niño ; SST anomalies ; Thermodynamic and dynamic responses ; Gill-type response
Abstract
A new framework is proposed to gain a better understanding of the response of the atmosphere over the tropical Pacific to the radiative heating anomaly associated with the sea surface temperature (SST) anomaly in canonical El Niño winters. The new framework is based on the equilibrium balance between thermal radiative cooling anomalies associated with air temperature response to SST anomalies and other thermodynamic and dynamic processes. The air temperature anomalies in the lower troposphere are mainly in response to radiative heating anomalies associated with SST, atmospheric water vapor, and cloud anomalies that all exhibit similar spatial patterns. As a result, air temperature induced thermal radiative cooling anomalies would balance out most of the radiative heating anomalies in the lower troposphere. The remaining part of the radiative heating anomalies is then taken away by an enhancement (a reduction) of upward energy transport in the central-eastern (western) Pacific basin, a secondary contribution to the air temperature anomalies in the lower troposphere. Above the middle troposphere, radiative effect due to water vapor feedback is weak. Thermal radiative cooling anomalies are mainly in balance with the sum of latent heating anomalies, vertical and horizontal energy transport anomalies associated with atmospheric dynamic response and the radiative heating anomalies due to changes in cloud. The pattern of Gill-type response is attributed mainly to the non-radiative heating anomalies associated with convective and large-scale energy transport. The radiative heating anomalies associated with the anomalies of high clouds also contribute positively to the Gill-type response. This sheds some light on why the Gill-type atmospheric response can be easily identifiable in the upper atmosphere.
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0930-7575
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ user @
Serial
997
Permanent link to this record
Author
Sun, J. ; Wu, Z.
Title
Isolating spatiotemporally local mixed Rossby-gravity waves using multi-dimensional ensemble empirical mode decomposition
Type
$loc['typeJournal Article']
Year
2019
Publication
Climate Dynamics
Abbreviated Journal
Clim Dyn
Volume
Issue
3-4
Pages
1383-1405
Keywords
Abstract
Tropical waves have relatively large amplitudes in and near convective systems, attenuating as they propagate away from the area where they are generated due to the dissipative nature of the atmosphere. Traditionally, nonlocal analysis methods, such as those based on the Fourier transform, are applied to identify tropical waves. However, these methods have the potential to lead to the misidentification of local wavenumbers and spatial locations of local wave activities. To address this problem, we propose a new method for analyzing tropical waves, with particular focus placed on equatorial mixed Rossby-gravity (MRG) waves. The new tropical wave analysis method is based on the multi-dimensional ensemble empirical mode decomposition and a novel spectral representation based on spatiotemporally local wavenumber, frequency, and amplitude of waves. We first apply this new method to synthetic data to demonstrate the advantages of the method in revealing characteristics of MRG waves. We further apply the method to reanalysis data (1) to identify and isolate the spatiotemporally heterogeneous MRG waves event by event, and (2) to quantify the spatial inhomogeneity of these waves in a wavenumber-frequency-energy diagram. In this way, we reveal the climatology of spatiotemporal inhomogeneity of MRG waves and summarize it in wavenumber-frequency domain: The Indian Ocean is dominated by MRG waves in the period range of 8–12 days; the western Pacific Ocean consists of almost equal energy distribution of MRG waves in the period ranges of 3–6 and 8–12 days, respectively; and the eastern tropical Pacific Ocean and the tropical Atlantic Ocean are dominated by MRG waves in the period range of 3–6 days. The zonal wavenumbers mostly fall within the band of 4–15, with Indian Ocean has larger portion of higher wavenumber (smaller wavelength components) MRG waves.
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0930-7575
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ user @
Serial
1093
Permanent link to this record