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Climate Indices

Climate Indices and their forecasts are updated on the 10th and 25th of each month, respectively.

Introduction and Methodology

Temporal variation and current status of climate variability can be effectively monitored in terms of indices. In this section, monthly data of climate indices representing major climate variability with significant implication in the seasonal climate prediction are provided. Indices are categorized into three groups such as Pacific SST, Atlantic SST, Atmosphere, and Monsoon. Time series of each index will be shown by clicking mouse pointer over the name of each index and the data(ascii format) can be downloaded by clicking image. Each data is updated around 10th of each month. You can find more information on the indices at this link.

Pacific SST

NINO1+2 : Tropical Pacific SST (0-10°S, 90°W-80°W)

NINO3 : Tropical Pacific SST (5°N-5°S, 150°W-90°W)

NINO3.4 :Tropical Pacific SST (5°N-5°S, 170°W-120°W)

NINO4 : Tropical Pacific SST (5°N-5°S, 160°E-150°W)

ONI : Oceanic Nino Inex

TNI : Trans-Nino Index

EMI : El Nino Modoki Index

 


Pacific SST indices Monitoring

NINO12_2D.txt

NINO3_2D.txt

NINO34_2D.txt

NINO4_2D.txt

ONI_2D.txt

TNI_2D.txt

PACWARM_2D.txt

EOFPAC_2D.txt

EMI_2D.txt

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Indian & Atlantic SST

TNA :Tropical Northern Atlantic Index

TSA :Tropical Northern Atlantic Index

ATLTRI :Atlantic Tripole SST EOF

DMI :Dipole Mode Index


Indian & Atlantic SST indices Monitoring

TNA_2D.txt

TSA_2D.txt

ATLTRI_2D.txt

DMI_2D.txt

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Atmosphere

PNA : Pacific North American Index

WP : Western Pacific Index

NP : North Pacific pattern

AO : Antarctic Oscillation

AAO :Antarctic Oscillation

NAO : North Atlantic Oscillation

SOI : Southern Oscillation Index

QBO : Quasi-Biennial Oscillation


Atmospheric indices Monitoring

PNA_2D.txt

WP_2D.txt

NP_2D.txt

AO_2D.txt

AAO_2D.txt

NAO_2D.txt

SOI_2D.txt

NOI_2D.txt

QBO_2D.txt

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Monsoon

WYI : Webster-Yang Index

AUSMI : Australian Monsoon index

SAMI : south Asian monsoon index

IMI : Indian Monsoon Index

WNPMI : Western North Pacific Monsoon Index

 


Monsoon indices Monitoring

WYI_2D.txt

AUSMI_2D.txt

SAMI_2D.txt

IMI_2D.txt

WNPMI_2D.txt

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