WMO Statement on the Status of Global Climate (WSSGC)

• Topics addressed in the WSSGC• Example of 2010 • Key Challenges• Improving WMO CSM

By Omar Baddour

Observing and Information System DepartmentWorld Meteorological Organisation

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WMO Statement on the Status of Global Climate (WSSGC)

•Part of WCP activity (WCDMP) …Provision of an authoritative annual assessment of the global climate• CCl initiative since 1993• Based on annual climate assessment at Global, Regional and National levels, with increasing WMO Members contribution • Scientific coordination by a seconded expert from WMO Members (rotating from the 6 regions) • Secretariat Coordination (OBS-WIS/ DMA)

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Topics addressed by the WSSGC

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1- Global Surface Temperature Monitoring

• Annual Global Surface Temperature Anomaly w.r.t 1961-1990 global average ( 14°C, 57.2 °F)

• Annual Global Temperature Ranking

UK (HadCRUT3)NOAA( NCDC)NASA (GISS)

1850 1900 1950 2000

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2- Regional TemperaturesWMO OMM

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3- Extreme events

• Heat Waves• Cold Waves• Extreme precipitations • Flooding and flash floods • Drought• Wind storms• Tropical cyclones

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• Global Precipitations (GPCC, DWD)

• Sea Ice (NSIDC, USA)

• Ozone (GAW, WMO)

4- Other climate features

Sea Ice September2007

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2010

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2010 warmest year on record

Mean of three data sets anomaly +0.53°C (2005 +0.52, 1998 +0.51)Ranks 1 in GISS data, 1= in NCDC, 2 in HadCRU

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Regional temperature variations in 2010

Warmest year on record for Africa (+1.29°C,previous record +0.94 in 2009)

Also warmest on record in south/southwestAsia and Greenland/Arctic Canada region

Warmest year on record for Canada, India,Turkey

Warmest summer on record for Europe and Asia

Coldest year since 1996 for northern Europe,since mid-1980s for some countries (UK, Ireland,Norway, Finland)

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2001-10 clearly warmest decade on record

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Saharan/Arabian region

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Rapid recent warming in some regions

2001-10 mean 0.7 to 0.9°C warmer than any previous decade in all four regions

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Rainfall patterns in 2010

Very wet in Indonesia, eastern Australia, central/eastern Europe, Pakistan/western India, Colombia/VenezuelaRather wet in Sahel, south ChinaDry in Amazon region

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Transition from El Niño to La Niña

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Very hot summer in Russia, elsewhere in eastern Europe

Russia temperature anomalies,July 2010

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Extreme rainfall in Pakistan leads to record flooding

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Winter 2009/10 – cold in northern Europe and the U.S., warm in Canada and Arctic

Sources: DWD, Environment Canada, U.S. HighPlains Regional Climate Center

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December 2010 – very cold in northern Europe and Asia, very warm in Canada/Greenland

Again exceptional negative phase of Arctic OscillationMonthly anomalies as high as +14°C in NE Canada, as low as -10°C in Norway and Sweden

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Low July-September rainfall in the Amazon basin

Source: INMET (Brazil)

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Very wet year in eastern Australia

2nd wettest year on record for Australia, wettest for eastern statesDriest year on record for SW Australia

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Arctic sea ice 3rd lowest summer minimum,

slowest autumn freeze-up

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Key Challenges

• Ensure collaboration of all Members in providing timely input

• Set standard template procedures and mechanism for Members contribution

• Ensure precise, timely and regular input • Establish RCCs in all regions (remaining RA-III,

IV and V)• What Reference periods for which purpose• Putting the context of climate change

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Improving WMO CSM

• Provision of guidelines on methodologies and standards for defining extreme weather and climate events that are of major societal impacts and assessing their attribution and return periods (CCl-XV)

• Work on improving WMO Climate System Monitoring including real-time identification of extreme weather, methodologies and datasets for assessing climate trends and variations; and dissemination mechanism for timely informing on extreme weather and climate events (CCl XV)

• EC-LXII requested CCl to develop guidelines with appropriate formats and suitable mechanisms for the Members to follow when submitting their national

contributions to the WMO annual statement on the Global Climate.

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1. Ren Fumen (China) (Lead)2. Pattanaik Dushmenda (India) (Co-Lead)3. Randall Cerveny (USA)4. Blair Trewin (Asutralia)5. Boris Sherstyukov (Russia)6. Jurq Rapp (Germany)7. Diallo Aissatou (Guinea)

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CCl-Task Team on National Climate Monitoring Products

1. John Kennedy (UK) (Lead) 2. Ladislaus B. Chang'a (Tanzania) (Co-lead)3. Andrew Watkins (Australia) 4. Xiaolan Wang (Canada) 5. Olga Bulygina (Russia) 6. Mesut Demircan (Turkey) 7. Raj Booneeday (Mauritius) 8. Mohamed Semawi (Jordan)

CCl-Task Team on extreme climate events

CCl Task Teams for CSM

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Strengthening International collaboration on Climate Monitoring

• CCl/CLIVAR/JCOMM Expert Team on Climate Change Detection and Indices

ET- CCDI– Provide International Coordination for Climate change detection and climate indices

– Develop tools and material including software to calculate indices

– Organize regional Training Workshops

– Peer reviewed publications for contribution to the IPCC assessment reports

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Congo Workshop, Brazzaville, April 2007 WMO OMM

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Training Workshop on Statistical Analysis of Climate Extremes January 17th – 21th of 2010, Guayaquil - Ecuador WMO OMM

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Climate Watch SystemsWMO OMM

- To monitor climate anomalies

and related extremes

- To produce and disseminate climate advisories (climate alert bulletins) on significant ongoing or foreseen climate anomalies

- To heighten awareness among relevant users to initiate preparedness measures

- To interact with the users prior, during and after the Alert episode

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3 Workshops: 2008-2010

2008

2009

2010

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THANK YOU

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