[Keyword='climate index']
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Daily Madden-Julian Oscillation (MJO) Indices from NOAA/Climate Prediction Center Entry ID: NOAA_NWS_CPC_MJO |
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Summary
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Abstract:
[Source: NOAA Climate Prediction Center, http://www.cpc.ncep.noaa.gov/ ] An extended Empirical Orthogonal Function (EEOF) analysis is applied to pentad velocity potential at 200-hPa for ENSO-neutral and weak ENSO winters (November-April) during 1979-2000. The first EEOF is composed of ten time-lagged patterns . Ten Madden-Julian Oscillation (MJO) indices are constructed by regressing the daily data onto the ten patterns of the first EEOF. Data is available for the ten MJO indices (normalized) for the previous 6 and 12 months. The MJO Indices are centered at 20E, 70E, 80E, 100E 120E, 140E, 160E, 120W, 40W and 10W indicating centers of enhanced convection for the ten indices, which are determined from the ten time-lagged patterns of the first EEOF of CHI200. Anomalies are based on the 1979-1995 period, and each index is normalized by its standard deviation during ENSO-neutral and weak ENSO winters (November-April) in 1979-2000. Pentad MJO indices are available since 1978. |
Related URL
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Link:
GET DATA
Description: Access to MJO Index documentation, graphs, and data |
Geographic Coverage
| N: 30.0 | S: 0.0 | E: 70.0 | W: 80.0 |
| Min Altitude: 0HPA | Max Altitude: 200 HPA |
Data Set Citation
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Dataset Originator/Creator:
NOAA/NWS/CPC
Dataset Title: Daily Madden-Julian Oscillation Indices Dataset Series Name: NOAA/NWS/CPC Indices and Forecasts Dataset Release Date: ongoing Dataset Release Place: Camp Springs, MD Dataset Publisher: NOAA National Weather Service, Center for Climate Prediction Online Resource: http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_mjo_index... |
Temporal Coverage
| Start Date: 1978-01-01 |
Location Keywords
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GEOGRAPHIC REGION
> EQUATORIAL
GEOGRAPHIC REGION > TROPICS |
Data Resolution
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Temporal Resolution:
daily, pentad
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Science Keywords
| ATMOSPHERE >ALTITUDE >GEOPOTENTIAL HEIGHT [Definition] |
| ATMOSPHERE >ATMOSPHERIC PRESSURE >OSCILLATIONS >MADDEN-JULIAN OSCILLATION INDEX [Definition] |
| ATMOSPHERE >ATMOSPHERIC PRESSURE >PRESSURE ANOMALIES [Definition] |
| CLIMATE INDICATORS >ATMOSPHERIC/OCEAN INDICATORS >TELECONNECTIONS >EL NINO SOUTHERN OSCILLATION (ENSO) >ENSO [Definition] |
| CLIMATE INDICATORS >ATMOSPHERIC/OCEAN INDICATORS >TELECONNECTIONS >MADDEN-JULIAN OSCILLATION [Definition] |
ISO Topic Category
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CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
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Keywords
| MJO |
| Madden-Julian Oscillation Index |
| climate index |
| climate indices |
| atmospheric circulation |
| climate change |
| ENSO |
| El Nino Southern Oscillation |
| tropical intersasonal oscillation |
Data Set Progress
| IN WORK |
Originating Center
| NOAA/NWS/CPC |
Data Center
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Climate Prediction Center, National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce
[Information]
Data Center URL: http://www.cpc.ncep.noaa.gov/ Dataset ID: MJO Index
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Distribution
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Distribution_Media:
online www
Distribution_Format: ascii Fees: none |
Personnel
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JON
GOTTSCHALCK Role: TECHNICAL CONTACT Email: Jon.Gottschalck at noaa.gov |
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SCOTT
A.
RITZ Role: DIF AUTHOR Phone: 301-614-5126 Fax: 301-614-5268 Email: Scott.A.Ritz at nasa.gov Contact Address: NASA Goddard Space Flight Center Global Change Master Directory City: Greenbelt Province or State: Maryland Postal Code: 20771 Country: USA |
Publications/References
Madden, R. A., and P. R. Julian, 1971: Detection of a 40-50 day
oscillation in the zonal wind in the tropical Pacific.J. Atmos. Sci.,
28, 702-708.
Madden, R. A., and P. R. Julian, 1994: Observations of the 40-50 day
tropical oscillation: a review. Mon. Wea. Rev., 122, 814-837.
Jones, C., D.E. Waliser and C. Gautier 1998. The influence of the
Madden-Julian Oscillation on ocean surface heat fluxes and sea-surface
temperatures. J. Climate 11, 1057-72. (also on the web: Coupled modes
of air-sea interaction and the Madden and Julian oscillation.)
http://www.crseo.ucsb.edu/esrg/papers/paper3/toga_paper.html
Rui, H., and B. Wang, 1990: Development characteristics and dynamic
structure of tropical intraseasonal convection
anomalies. J. Atmos. Sci., 47, 357-379.
Jones, C. and B.C. Weare 1996. The role of low-level moisture
convergence and ocean latent-heat fluxes in the Madden and Julian
Oscillation. J. Climate, 9, 3086-104.
Hayashi, Y. and D.G. Golder 1993. Tropical 40-50 and 25-30 day
oscillations. J. Atmos. Sci., 50, 464-94.
For additional MJO references, see:
http://www.coaps.fsu.edu/lib/elninobib/Madden-Julian-Oscillation/
oscillation in the zonal wind in the tropical Pacific.J. Atmos. Sci.,
28, 702-708.
Madden, R. A., and P. R. Julian, 1994: Observations of the 40-50 day
tropical oscillation: a review. Mon. Wea. Rev., 122, 814-837.
Jones, C., D.E. Waliser and C. Gautier 1998. The influence of the
Madden-Julian Oscillation on ocean surface heat fluxes and sea-surface
temperatures. J. Climate 11, 1057-72. (also on the web: Coupled modes
of air-sea interaction and the Madden and Julian oscillation.)
http://www.crseo.ucsb.edu/esrg/papers/paper3/toga_paper.html
Rui, H., and B. Wang, 1990: Development characteristics and dynamic
structure of tropical intraseasonal convection
anomalies. J. Atmos. Sci., 47, 357-379.
Jones, C. and B.C. Weare 1996. The role of low-level moisture
convergence and ocean latent-heat fluxes in the Madden and Julian
Oscillation. J. Climate, 9, 3086-104.
Hayashi, Y. and D.G. Golder 1993. Tropical 40-50 and 25-30 day
oscillations. J. Atmos. Sci., 50, 464-94.
For additional MJO references, see:
http://www.coaps.fsu.edu/lib/elninobib/Madden-Julian-Oscillation/
Creation and Review Dates
DIF Creation Date:
2003-02-13
Last DIF Revision Date:
2009-11-04
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