state of the climate 2012 webinar briefing slides
TRANSCRIPT
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Kathryn Sullivan, Ph.D, Acting Under Secretary of Commerce for Oceansand Atmosphere and NOAA Administrator
Thomas R. Karl, L.H.D., Director, NOAAs National Climatic Data Center,and Chair of the Subcommittee on Global Change Research
Jessica Blunden, Ph.D., Scientist, ERT Inc., Climate Monitoring Branch,NOAAs National Climatic Data Center
Kate Willett, Ph.D., Senior Scientist, Met Office Hadley Centre
Jackie Richter-Menge, Research Civil Engineer, U.S. Army Corps ofEngineers, Cold Regions Research and Engineering Laboratory
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WhatistheImportanceofthisReport?
Surveysthechangingstateandbehaviorofthephysicalclimatesystemeveryyearintendedtobeanannualscorecard
Bringstogetherinformationaboutthemanypartsoftheclimatesysteminto
onesingle
document
Doesnotprovideattributionorcontainforecasts,scenarios,orprojections
Providesreferencematerialforunderstandingscienceandeffectsofclimateoneconomic,social,andnaturalsystems
This is the 23rd annual State of the Climate report
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WhoPutstheReportTogether?
384authorsfrom52countries
17editorson3continents
384authorsfrom52countries
17editorson3continents
IttakesmorethanavillagetounderstandEarthsclimatesystem
andtheimpactsthatweatherandclimatehavearoundtheworld.
Atmosphere Snow & IceOceansLand
Manyscientists
from
many
disciplines
contribute
to
fitting
the
pieces
together.
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Includescountrysummariesoftheannualclimateformorethan120
countriesandterritoriesacrosstheglobe
5
Summariesinclude:
Temperature
Precipitation
Notableclimateevents
Climatologicalimpacts
of
extreme
orunusualweathereventssuchas
droughts,flooding,heatwaves,or
coldsnaps
StateoftheClimatein2012
Precipitation information for the Sahel during J uneSeptember 2012. The regionhad its wettest rainfallseason in the past half century.
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GlobalClimate
Temperature HydrologicalCycle AtmosphericCirculation EarthsRadiationBudget AtmosphericComposition LandSurfaceProperties
GlobalOceans SeaSurfaceTemperature
HeatContentandFluxes Salinity OceanCurrents SeaLevel
Global
Ocean
Carbon
Cycle
TheTropics
El
Nio
/
Southern
Oscillation TropicalCyclones Intertropical ConvergenceZones AtlanticMultidecadal Oscillation IndianOceanDipole
TheArctic Atmosphere Ocean SeaIce Land Greenland
Antarctica Circulation WeatherObservation Precipitation SeaIce OzoneDepletion
Chapters describe various climate indicators and other climate phenomena
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Averageglobalsealevelreachedarecordhighin
2012.Totalsealevelhasincreasedatanaverage
rateof3.2mmperyearsince1993.
Heatcontentintheupper2,300feetoftheocean
remainednearrecordhighvaluesin2012.Overall
increaseswerealsoobservedinthedeepoceanbelow.
Upper Ocean Heat Content Sea Level Rise
Global Ocean Surface Temperature
Globalaverageoceansurfacetemperaturewashigherthanthe19812010averageandhasbeenforatleastadecade.
StateoftheClimatein2012
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Lowerstratospherictemperaturesfor2012wererecordcoldestto8th coldestsince
recordsbegan
in
1979
(satellites)
and
1958
(radiosondes)
Lowertropospherictemperaturesfor2012were8th to11th warmestsincesatelliteandradiosonderecordsbegan
Surfacetemperatures
for
2012
were
8th to
9th warmestsincerecordsbeganinmidto
late1800s
Continuedwarmthatthesurface
andinthetropospherewith
continuedcoldinthestratosphere
8
Lower Stratospheric Temperature
Lower Tropospheric Temperature
Surface Temperature
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Globalmeancarbondioxide(CO2)reached
392.6ppm,a2.1ppmincreasefrom2011
Globalmean
methane
(CH4)
reached
1808.5
ppb,a5.1ppbincreasesince2011
Globalmeannitrousoxide(N2O)reached
325ppb,a0.8ppbincreasesince2011
Additionalradiative
forcing
from
greenhouse
gasesabovepreindustrialtimesisnow
2.88Wm2,a32%increasesince1990
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Therewererecordwarmpermafrosttemperatures
intheAlaskanArcticandCanadianArchipelago
alongsideongoing warmingandincreasingActive
LayerThickness.
10StateoftheClimatein2012
Preliminarydatasuggeststhat2012
willbe
the
22nd consecutive
year
of
negativeglaciermassbalance.
Photo Credit: Vladimir E. Romanovsky
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SurfacetemperaturesintheArcticareincreasingatarateabouttwo
times
faster
than
the
rest
of
the
world.11
+6-6 0
( oC )
Temperatureanomaly(Celsius)for
October2011September2012
relativetothe19812010average
Figure by NOAA
Temperatureanomaly(Celsius) for
20012011relativeto19712000
StateoftheClimatein2012
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J une 2012 snow extent anomaly on land
relative to 19712000
Sea ice extent on 16 September 2012Rare, near-ice sheet-wide
surface melt event on 11 J uly 2012
Numerousrecordmelteventsobservedfor:
Permafrosttemperatures
Springsnowcoverextent
Summerseaicecover
Manyoftheseeventswererelatedtoastrongandpersistentsoutherlyairflowinto
theArcticinspringandsummer.
12StateoftheClimatein2012
Greenlandicesheet
Lakeicebreakup
CanadianArcticglaciersandicecaps
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Drasticandpersistent
reductioninextentof
summerseaicecoverin
coastalmargins
Warmingofocean
surfaceinregionsof
openwater
Increasein
tundra
vegetationandocean
primaryproductivityin
coastalregions
StateoftheClimatein2012
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The2012annualglobaltemperatureacrosslandandoceansurfaceswasamongthe10warmestyearsonrecord
Severalimportant
indicators set
new
records
orwerenearrecordlevelsduringtheyear:
Greenhousegaslevels
Lowerstratospherictemperatures
Oceanheatcontent
Sealevelrise
LatespringNorthernHemispheresnowcoverextent
Arcticminimumseaiceextent
Permafrosttemperatures
TheArcticcontinuedtowarmfasterthantherestoftheglobe.Impactsfromthewarmthwereunprecedentedin2012
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LinktoFullReportandTodaysPresentation:
http://www.ncdc.noaa.gov/bamsstateoftheclimate/2012.php
ReportHighlights:
http://www.climate.gov/newsfeatures/understandingclimate/stateclimate2012highlights
NOAAsNationalClimaticDataCenter: www.ncdc.noaa.gov
U.S.ArmyCorpsofEngineers,PolarResearchandEngineering
Lab: http://polar.crrel.usace.army.mil/
UKMetOfficeClimate: http://www.metoffice.gov.uk/climatechange
ClimatePortal:www.climate.gov
MediaContacts:
[email protected],2024071298(NOAA/Comms)
[email protected],8282573136(NOAA/NCDC)