Atmospheric Oscillation Page

Arctic Oscillation (AO)

Northern Hemisphere – 500-hPa/mb Height Anomalies – Prior 30 Days

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

Northern Hemisphere – 500-hPa/mb Height 90-Day Mean & Anomalies

NOAA Physical Sciences Laboratory (PSL) – (URL updated from ESRL PSD) – Click the pic to view at source

Normalized Geopotential Height (GPH) Anomaly & Arctic Oscillation (AO) Index – 4 Months Prior

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

Arctic Oscillation (AO) Index – 4 Months Prior

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

Arctic Oscillation (AO) Index Observed & Forecast – 4 Months Prior & 2 Weeks Forward

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

Arctic Oscillation (AO) Index – 2000 to Present & 1950 to Present
CPC – Daily AO Index Monitoring Page (charts and data)

Standardized 3-Month Running Mean Arctic Oscillation (AO) Index – 1950 to Present

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

Standardized Seasonal Mean Arctic Oscillation (AO) Index – 1950 to Present

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source


Antarctic Oscillation (AAO)

Southern Hemisphere – 500-hPa/mb Height Anomalies – Prior 30 Days

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

Normalized Geopotential Height (GPH) Anomaly & Antarctic Oscillation (AAO) Index – 4 Months Prior

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

Observed & Forecast Antarctic Oscillation (AAO) Index – 4 Months Prior & 2 Weeks Forward

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

Standardized 3-Month Running Mean Antarctic Oscillation (AAO) Index – 1979 to Present

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

Antarctic Oscillation (AAO) Index Daily – 1979 to Present

The Royal Netherlands Meteorological Institute (KNMI) – Climate Explorer – Click the pic to view at source


Global Atmospheric Pressure Anomalies

Global – 200-hPa/mb Height Anomalies – ~12,000 m (40,000 ft)

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source


North Atlantic Oscillation (NAO)

North Atlantic Oscillation (NAO) Composite Pattern

NOAA Physical Sciences Laboratory (PSL) – Reforecast2 Teleconnections – (URL updated from ESRL PSD) – Click the pic to view at source

North Atlantic Oscillation (NAO) Index – 4 Months Prior & 2-Week Ensemble Forecast

NOAA Physical Sciences Laboratory (PSL) – Reforecast2 – Click the pic to view at source

North Atlantic Oscillation (NAO) Index – 4 Months Prior

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

North Atlantic Oscillation (NAO) Index – 2000 to Present

⚠ The original NOAA NCDC teleconnection image (www1.ncdc.noaa.gov/pub/data/cmb/teleconnections/) is no longer available — NCDC reorganized as NCEI and discontinued this image series. Current NAO data:

CPC – NAO Monitoring Page
NOAA NCEI – Teleconnection Monitoring

Standardized 3-Month Running Mean North Atlantic Oscillation (NAO) Index – 1950 to Present

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

North Atlantic Oscillation (NAO) Index – 1950 to Present

The Royal Netherlands Meteorological Institute (KNMI) – Climate Explorer – Click the pic to view at source


Southern Oscillation Index (SOI)

Southern Oscillation Index (SOI) – 2000 to Present & 1950 to Present

⚠ The original NOAA NCDC SOI images are no longer available. Current SOI data:

CPC – Southern Oscillation Index Monitoring
NOAA NCEI – Teleconnection Monitoring

Southern Oscillation Index (SOI) – 1882 to Present

The Royal Netherlands Meteorological Institute (KNMI) – Climate Explorer – Click the pic to view at source

For more detailed ENSO information visit the WUWT ENSO (El Niño/La Niña Southern Oscillation) Page


Pacific/North American (PNA) Index

Pacific/North American (PNA) Composite Pattern

NOAA Physical Sciences Laboratory (PSL) – Reforecast2 Teleconnections – (URL updated from ESRL PSD) – Click the pic to view at source

Pacific/North American (PNA) Index – 13-Day Ensemble Forecast

NOAA Physical Sciences Laboratory (PSL) – Reforecast2 – Click the pic to view at source

Pacific/North American (PNA) Index – 4 Months Prior & 2-Week Forecast

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

Pacific/North American (PNA) Index – 2000 to Present & 1950 to Present

⚠ The original NOAA NCDC PNA images are no longer available. Current PNA data:

CPC – PNA Monitoring Page
NOAA NCEI – Teleconnection Monitoring

Standardized 3-Month Running Mean Pacific/North American (PNA) Index – 1950 to Present

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source


East Pacific – North Pacific Pattern

East Pacific Oscillation (EPO) Composite Pattern

NOAA Physical Sciences Laboratory (PSL) – Reforecast2 – (URL updated from ESRL PSD) – Click the pic to view at source

East Pacific Oscillation (EPO) Index – 13-Day Ensemble Forecast

NOAA Physical Sciences Laboratory (PSL) – Reforecast2 – Click the pic to view at source

Standardized 3-Month Running Mean East Pacific – North Pacific Pattern Index – 1950 to Present

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source


West Pacific Pattern

West Pacific Oscillation (WPO) Composite Pattern

NOAA Physical Sciences Laboratory (PSL) – Reforecast2 – (URL updated from ESRL PSD) – Click the pic to view at source

West Pacific Oscillation (WPO) Index – 13-Day Ensemble Forecast

NOAA Physical Sciences Laboratory (PSL) – Reforecast2 – Click the pic to view at source

Standardized 3-Month Running Mean West Pacific Pattern Index – 1950 to Present

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source


Pacific Transition Pattern

Standardized Monthly Pacific Transition Pattern Index – 1950 to Present

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source


Tropical / Northern Hemisphere Pattern

Standardized 3-Month Running Mean Tropical/Northern Hemisphere Pattern Index – 1950 to Present

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source


Polar Eurasian Pattern

Standardized 3-Month Running Mean Polar Eurasian Pattern Index – 1950 to Present

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source


Scandinavian Pattern

Standardized 3-Month Running Mean Scandinavian Pattern Index – 1950 to Present

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source


Blocking

Northern Hemisphere 500 hPa Geopotential Height and Anomalies – Daily

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

Northern Hemisphere Atmospheric Blocking Strength – 500 hPa GHGN – Prior 3 Months

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

Northern Hemisphere Atmospheric Blocking Strength – 500 hPa GHGN – Prior 3 Months & 2-Week Forecast

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

Southern Hemisphere 500 hPa Geopotential Height and Anomalies – Daily

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

Southern Hemisphere Atmospheric Blocking Strength – 500 hPa GHGN – Prior 3 Months

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

Southern Hemisphere Atmospheric Blocking Strength – 500 hPa GHGN – Prior 3 Months & 2-Week Forecast

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source


Outgoing Longwave Radiation (OLR)

Outgoing Longwave Radiation (OLR) – Daily

NOAA Physical Sciences Laboratory (PSL) – (URL updated from ESRL PSD) – Click the pic to view at source

Outgoing Longwave Radiation (OLR) Anomalies – Daily

NOAA Physical Sciences Laboratory (PSL) – (URL updated from ESRL PSD) – Click the pic to view at source

Outgoing Longwave Radiation (OLR) and OLR Anomalies – Prior Year

climate4you.com – Ole Humlum – Click the pic to view at source

Standardized Outgoing Longwave Radiation (OLR) Anomalies – 2000 to Present & 1975 to Present

⚠ The original NOAA NCDC OLR anomaly images are no longer available. Current OLR data:

NOAA PSL – OLR Maps and Climatology
NOAA NCEI – Teleconnection Monitoring


Madden–Julian Oscillation (MJO)

Madden–Julian Oscillation (MJO) – 15-Day Ensemble Forecast

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

Madden–Julian Oscillation (MJO) 2-Meter Temperature Composites – Daily

NOAA Physical Sciences Laboratory (PSL) – (URL updated from ESRL PSD) – Click the pic to view at source

Madden–Julian Oscillation (MJO) Index – Daily

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

Madden–Julian Oscillation (MJO) Phase Diagram – 40 Days

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

5-Day Running Mean MJO Index – 6 Months

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

Madden–Julian Oscillation (MJO) OLR Hovmöller – 6 Months

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

15-Day Running Mean MJO Index – 1 Year

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source


Total Explained Variance of Leading Modes

Total Explained Variance of Leading Modes – 1950 to Present

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source

Calendar Months When Specific Teleconnection Patterns Are Important

NOAA – National Weather Service – Climate Prediction Center – Click the pic to view at source


Source Guide

climate4you.com – Ole Humlum
Home Page – https://www.climate4you.com/

NOAA National Centers for Environmental Information (NCEI) (formerly NCDC)
Home Page – https://www.ncei.noaa.gov/
Teleconnection Monitoring – https://www.ncei.noaa.gov/access/monitoring/teleconnections/

NOAA Physical Sciences Laboratory (PSL) (formerly ESRL Physical Sciences Division)
Home Page – https://psl.noaa.gov/
Map Room – https://psl.noaa.gov/map/
OLR Products – https://psl.noaa.gov/map/clim/olr.shtml
Reforecast2 Teleconnections – https://psl.noaa.gov/forecasts/reforecast2/teleconn/
MJO – https://psl.noaa.gov/mjo/

NOAA National Weather Service – Climate Prediction Center (CPC)
Home Page – https://www.cpc.ncep.noaa.gov/
Teleconnections Page – https://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/teleconnections.shtml
AO Monitoring – https://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/ao.shtml
AAO Monitoring – https://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/aao/aao.shtml
NAO Monitoring – https://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/nao.shtml
PNA Monitoring – https://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/pna.shtml
MJO Monitoring – https://www.cpc.ncep.noaa.gov/products/precip/CWlink/MJO/mjo.shtml
SOI – https://www.cpc.ncep.noaa.gov/products/precip/CWlink/MJO/enso.shtml
Atmospheric & SST Indices – https://www.cpc.ncep.noaa.gov/data/indices/
Teleconnection Patterns (Teledoc) – https://www.cpc.ncep.noaa.gov/data/teledoc/
Blocking – https://www.cpc.ncep.noaa.gov/products/precip/CWlink/blocking/

The Royal Netherlands Meteorological Institute (KNMI) – Climate Explorer
Home Page – https://www.knmi.nl/home
KNMI Climate Explorer – https://climexp.knmi.nl/start.cgi

StormSurf.com
Home Page – https://www.stormsurf.com/
Global Jet Stream – 250 mb Wind and Pressure Animation

SSEC / CIMSS – University of Wisconsin–Madison
SSEC Home – https://www.ssec.wisc.edu/
Global Satellite Composites – https://www.ssec.wisc.edu/data/comp/
CIMSS Home – https://cimss.ssec.wisc.edu/

ECMWF – European Centre for Medium-Range Weather Forecasts
Home Page – https://www.ecmwf.int/
Charts – https://charts.ecmwf.int/

IRI/LDEO Climate Data Library – Columbia University
Home Page – https://iridl.ldeo.columbia.edu/
Atmospheric Circulation – https://iridl.ldeo.columbia.edu/maproom/.Global/.Atm_Circulation/
Height Anomaly Loops – https://iridl.ldeo.columbia.edu/maproom/.Global/.Atm_Circulation/Height_Anom_Loops.html

Naval Research Laboratory (NRL) – Marine Meteorology Division
Home Page – https://www.nrlmry.navy.mil/


Link Tutorial: Atmospheric Oscillations – Teleconnections

Teleconnections include the Arctic Oscillation (AO), Antarctic Oscillation (AAO), North Atlantic Oscillation (NAO), North Pacific Oscillation (NPO), the Madden–Julian Oscillation (MJO), Equatorial Indian Ocean Oscillation (EQUINOO) and Southern Oscillation (SO).

The Arctic Oscillation (AO):
https://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/ao.shtml
30-day NH polar circulation animation: https://www.cpc.ncep.noaa.gov/products/intraseasonal/z500_nh_anim.shtml

The Antarctic Oscillation (AAO):
https://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/aao/aao.shtml
30-day SH polar circulation animation: https://www.cpc.ncep.noaa.gov/products/intraseasonal/z500_sh_anim.shtml

The North Atlantic Oscillation (NAO):
https://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/nao.shtml

The North Pacific Oscillation (NPO), closely associated with the Pacific Decadal Oscillation (PDO):
Wikipedia – North Pacific Oscillation

The Madden–Julian Oscillation (MJO):
https://www.cpc.ncep.noaa.gov/products/precip/CWlink/MJO/mjo.shtml
Wikipedia – Madden–Julian Oscillation
WUWT – The Madden–Julian Oscillation (Dec 2010)

The Equatorial Indian Ocean Oscillation (EQUINOO), closely associated with the Indian Ocean Dipole (IOD):
Wikipedia – Indian Ocean Dipole

The Southern Oscillation (SO), collectively referred to with El Niño/La Niña as ENSO:
https://www.cpc.ncep.noaa.gov/products/precip/CWlink/MJO/enso.shtml


Atmospheric Components:

Atmospheric Circulation:
Wikipedia – Atmospheric Circulation
Wikipedia – Earth Global Circulation diagram

Atmospheric Pressure:
Wikipedia – Atmospheric Pressure

Atmospheric Waves:
Wikipedia – Atmospheric Wave

Brewer-Dobson Circulation:
Wikipedia – Brewer-Dobson Circulation

Ekman Transport:
Wikipedia – Ekman Transport

Gravity Waves:
Wikipedia – Gravity Wave

Jet Stream:
Wikipedia – Jet Stream

Polar Vortex:
Wikipedia – Polar Vortex

Precipitation:
Wikipedia – Precipitation

Rossby Waves:
Wikipedia – Rossby Waves

Tornadoes:
Wikipedia – Tornado

Trade Winds:
Wikipedia – Trade Winds

Tropical Cyclones:
Wikipedia – Tropical Cyclone

Westerlies:
Wikipedia – Westerlies

Atmospheric Gravity Wave Summary:

Gravity Waves – Wikipedia – Gravity Wave
– On an air–sea interface: Wikipedia – Surface Wave
– Internal gravity waves / Inertial Waves: Wikipedia – Inertial Wave
Rossby Waves – Wikipedia – Rossby Waves
Geostrophic Currents – Wikipedia – Geostrophic Current
Geostrophic Wind – Wikipedia – Geostrophic Wind


Additional Resources:

Dr. Roy Spencer – UAH
Home Page – https://www.drroyspencer.com/
Latest Global Temperatures – https://www.drroyspencer.com/latest-global-temperatures/

⚠ The UAH DISCOVER project (discover.itsc.uah.edu) has been discontinued.

NASA Earth Observations (NEO)
https://neo.gsfc.nasa.gov/

SSEC / CIMSS – University of Wisconsin–Madison
SSEC Home – https://www.ssec.wisc.edu/
Global Satellite Composites – https://www.ssec.wisc.edu/data/comp/
CIMSS Home – https://cimss.ssec.wisc.edu/

ECMWF – European Centre for Medium-Range Weather Forecasts
Home Page – https://www.ecmwf.int/
Charts – https://charts.ecmwf.int/

IRI/LDEO Climate Data Library – Columbia University
https://iridl.ldeo.columbia.edu/

Weather Models / Ryan Maue (formerly COAPS/FSU and policlimate.com)
https://weathermodels.com/

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R. Gates
May 16, 2011 11:09 am

Very impressive set of resources you’ve put together. I think it’s time for me to make a donation to your site. Time is money and your one stop shopping saves me a lot…thanks for the nice work!

May 19, 2011 6:14 pm

Additional information on AO and NAO can be found here: http://www.appinsys.com/GlobalWarming/AO_NAO.htm

Jim Daly
June 2, 2011 10:19 pm

What a fantastic dashboard of information. Thank You !!! This site has enlightened me since the first time I happened in from a comment posted on not very Skeptical Science a couple of years ago when my investigation of AGW began to get serious while attempts were made congressionally to Cap and Trade CO2. Your site has provided so many sources of information to much of the thinking occurring on this topic. These reference pages are so informative and provide so many real time rebuttals to the many wild alarmists claims of CO2 signatures in weather events.

November 23, 2011 8:58 pm

Looking for info as far as what forcing mechanisms might influence the fall and winter formation of the Pna index as models currently are in great disagreement.

Alean Smithy
December 9, 2011 2:07 pm

A lot of colorful pictures, a lot of links. Brownie point score 100! But what the [SNIP: Language -REP] are the conclusion of all that ??

Reply to  Alean Smithy
November 17, 2017 3:14 am

Thnaks for taking the time to post. It’s lifted the level of debate

UEFA Euro Cup
January 30, 2012 5:29 am

Austin Powers International Man of Mystery: “Dr. Evil I demand the sum… OF 1 MILLION DOLLARS.”

February 12, 2012 4:18 am

Jeff Masters, over at the ‘Weather Underground’ (apparently a proud member of the Baader-Meinhof wing of Meteorlogy) is obsesssing about his “worst global warming” fear: Michigan is becoming like Ohio!
“My worst global warming fear: buckeyes in Ann Arbor”
http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=2032

February 12, 2012 4:23 am

>Jeff Masters. etc
Oops, I thought I was on the Tips&Notes page. Sorry. Can you move it to that page?
[Sorry, no. You will have to re-post it there. ~dbs, mod.]

August 22, 2012 2:06 am

[snip . . OT . . kbmod]

October 12, 2012 2:34 pm

My brother suggested I might like this website. He was totally right. This post actually made my day. You cann’t imagine just how much time I had spent for this information! Thanks!

December 23, 2013 6:07 pm

The image for Outgoing Longwave Radiation (OLR) and OLR Anomalies – Daily isn’t right. It goes to 2012.

Kyle
January 18, 2014 10:26 am

Where can you get a daily chart of the PNA index? Also is Weather Underground into the Liberal propaganda on Global Warming? Would it be wise to register in order to argue against Global Warming or do they ban people who don’t tow the party line?

March 14, 2014 2:02 pm

Romney ought to not talk to stephanopolis. That man is in really like with 0bama, literally! when he interviews him he blushes._Romney needs for getting tough instead of phase down. He experienced a presidential moment, when he permit 0bama have it right after the killing of your Ambassedor. Dont allow up on that..

Rene Jams
December 8, 2015 9:16 am

!Live (almost) http://weather.uwyo.edu/upperair/uamap.html — un-check [ ]Observations for a readable picture () — i´ve found 250 200 mb useful in correlation with the solar wind as short term indicators (???)

September 1, 2017 9:37 am

Read how jet streams are accelerated by mid-latitude oxygen/ozone conversion, extending Rossby loop meanders. Study the new theory on a desktop monitor at this dedicated website:
https://www.harrytodd.org