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![Page 1: 1 Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey Climate System Monitoring.](https://reader036.fdocuments.us/reader036/viewer/2022062517/56649ed85503460f94be6bd6/html5/thumbnails/1.jpg)
1Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey
Climate System Monitoring and
Research Needs
Thomas C. PetersonChief Scientist, National Climatic Data Center, NOAA
Asheville, NC, USAand
Chair, OPAG on Monitoring and Analysis of Climate Variability and ChangeCommission for Climatology
World Meteorological Organization
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2Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 2
Outline
• State of the art in climate system monitoring• Research needs
– Essential Climate Variables– Turning data into Climate Data Records– The quest for more in situ data
• Key first step is increasing local understanding• Cross-border verification
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3Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 3
Climate Monitoring State
of the Art
• Annual review• 196 pages• 280 authors from• 42 countries• Peer-reviewed• Published in the
Bulletin of the American Meteorological Society
• NOAA/NCDC led with WMO collaboration
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4Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 4
Inclusive (new authors welcome)
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5Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 5
• Synthesizes many different sources of data
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6Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 6
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7Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 7
• From the top of the atmosphere to the bottom of the ocean.
• Sections of dissolved inorganic carbon (μmol kg−1) nominally along 105°W in (top) 2008 and (middle) 1994. The bottom section shows the DICchange between the two cruises (2008–1994). Black dots show sample locations. Inset map shows cruise track in red.
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8Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 8
• Both long-term trends and detrended information.
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9Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 9
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10Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 10
• Regional analyses
• Tropical storms in the Northern Indian Ocean
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11Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 11
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12Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 12
• (a) Ozone hole area, 1979–2008.
• (b) Temperature at 50 hPa from 60° to 75°S during Sep 1979–2008. The vertical bars represent the range of values from the individual days of Sep.
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13Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 13
Research Needs
• Monitor all GCOS Essential Climate Variables
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14Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 14
GCOS ECVs
• Not all GCOS Essential Climate Variables are currently being monitored
BAMS State of the Climate 2008
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15Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 15
2010 Atmospheric ECVs(no changes)
• Surface– Air temperature, Wind speed and direction, Water
vapour, Pressure, Precipitation, Surface radiation budget.
• Upper-air– Temperature, Wind speed and direction, Water
vapour, Cloud properties, Earth radiation budget (including solar irradiance).
• Composition– Carbon dioxide, Methane, and other long-lived
greenhouse gases. Ozone and Aerosol, supported by their precursors
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16Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 16
2010 Oceanic ECVs
• Surface– Sea-surface temperature, Sea-surface salinity, Sea
level, Sea state, Sea ice, Surface current, Ocean colour (for biological activity), Carbon dioxide partial pressure, Ocean acidity
• Sub-surface– Temperature, Salinity, Current, Nutrients, Carbon,
Carbon dioxide partial pressure, Ocean acidity, Oxygen, Tracers, Phytoplankton; Marine biodiversity and habitat properties
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17Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 17
2010 Terrestrial ECVs
• River discharge, Water use, Ground water, Lakes, Snow cover, Glaciers and ice caps, Ice sheets, Permafrost, Albedo, Land cover (including vegetation type), Fraction of absorbed photosynthetically active radiation (fAPAR), Leaf area index (LAI), Above-ground biomass, Soil carbon, Fire disturbance, Soil moisture, Terrestrial biodiversity and habitat properties
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18Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 18
Research Needs
• Turning data into Climate Data Records
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19Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 19
Climate Monitoring• Not as simple as launching a satellite or exchanging
some data• Data must be rigorously quality controlled to account
for potential errors in data entry, transmission or instrument malfunction.
• Data must be processed to remove time-dependent biases– Such as the jump from one satellite to the next– Or changes in sea surface temperatures from ships to
buoys• Peer-reviewed article describing data set creation
approaches taken– But still no guarantee that it is accurate
• Helps to compare to other data sets
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20Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 20
Data set agreement
• Surface temperature data agree very well– With very different
approaches to address time-dependent biases
• Upper air data vary considerably– Both satellite and
radiosonde data– A measure of
structural uncertainty
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21Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 21
Research Needs
• Quest for more in situ data– Key first step is increasing local understanding
• Or data aren’t appreciated
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22Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey
Global Historical Climatology Network-Monthly
• Greatest coverage during 1960s and 1970s
• Primarily relies on CLIMAT data for real-time updates
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23Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 23
Climate Extremes Workshops• Coordinated by the joint CCl/CLIVAR/JCOMM
Expert Team on Climate Change Detection and Indices• Will be discussed shortly
• Hands-on teaching of data processing• Quality control, homogeneity testing
• Calculation of the indices• Analysis of how extremes are changing
Bulletin of the American Meteorological Society, September 2008
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24Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 24
Climate Extremes Workshops
• Key outcome: Increased appreciation for data
Daily Maximum TemperatureBerberati, Central African RepublicBefore Brazzaville WorkshopAfter Workshop
Aguilar et al., 2009
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25Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 25
Research Needs
• Quest for more in situ data– Cross-border verification
• Key step towards sharing data
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26Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 26
Sharing Indices and Data Behind Them
• Most countries released their indices• Thanks to the workshops
• Updating the indices is still a challenge.• Sharing the data themselves, necessary to
make the analyses reproducible, is still very limited
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27Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 27
Cross-border Analysis and Verification
• A key part of the process• Fostered by the annual State of
the Climate report• a) Annual mean temperature
anomalies for South America for 2008 (°C); (b) annual total precipitation anomalies (% normal).
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28Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey 28
Summary
• Real-time global climate monitoring poses tremendous challenges.• But international collaboration is continually
improving our understanding of how the world’s climate is changing.
• New authors welcome for the BAMS State of the Climate report
• Society needs this information to help guide adaptation to climate change
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29Climate Monitoring Technical Conference on Changing Climate and Demands for Climate Services, 18 February 2010, Antalya, Turkey
See www.ncdc.noaa.gov/climate-monitoringfor more information on climate monitoring, including pdfs of the annual Bulletin of the
American Meteorological Society’s State of the Climate