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Transcript of Experimentos Espaciales de PMODWRC Para Medir La Constante Solar y La Influencia de Irradiance Solar...
7/27/2019 Experimentos Espaciales de PMODWRC Para Medir La Constante Solar y La Influencia de Irradiance Solar en El Cli…
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ysikalisch-Meteorologisches Observatorium Davos
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PMOD 1907-2007
WRC since 1971
Two activities:
Energy balance and influence
of radiation on the terrestrialclimate
3/4 Green house effect
3/4 Sun-Earth connection
Research
Space experiments of PMOD/WRCto measure the solar constant and
the influence of the solar irradiance
on the terrestrial climate
Werner Schmutz
PMOD/WRC
ISPMSRS'07 12-14 March 2007 Davos, Switzerland
erview
7/27/2019 Experimentos Espaciales de PMODWRC Para Medir La Constante Solar y La Influencia de Irradiance Solar en El Cli…
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ysikalisch-Meteorologisches Observatorium Davos
Overview
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Absolutely calibrated
TSI observations
TIM/SORCE2003 -
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Past observations of the Total Solar Irradiance (TSI) and the TSI-composite
Why irradiance measurements
Why continue to measure TSI
Future irradiance observations
erview
7/27/2019 Experimentos Espaciales de PMODWRC Para Medir La Constante Solar y La Influencia de Irradiance Solar en El Cli…
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ysikalisch-Meteorologisches Observatorium Davos
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Traceable Radiometry Underpinning
Terrestrial- & Helio- Studies
Mission proposal: TRUTHS
Nigel Fox NPL
James Aiken Plym Mar Lab
Xavier Briottet ONERA
John Barnett Ox univ.
Steve Groom Plym Mar Lab
Claus Frohlich PMOD/WRC
Jo Haigh Imp CollOlivier Hagolle CNES Hugh
Kieffer USGS
Judith Lean NRL
John Martin NPL
David Pollock U of Alab.
Mike Sandford RAL
Michael Schaepman U of Zur
Werner Schmutz PMOD/WRC
Keith Shine Uni of Read
Phil Teillet CCRS
Theo Theocharous NPL
Kurtis Thome U of Ariz
Terry Quinn BIPM
Michel Verstraete JRC(Italy)
Emma Woolliams NPL
Ed Zalewski U of Ariz
confidence.
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,
- ns rmens c ange
and prepar i n -o r b i
Difficulties:- Bias bt
MIS
A side note: Need for improved Quality Assurance!
Courtesy of Nigel Fox
. ex
WMO areg
debate
2 dedicate d t o c a l i b r a t i o n e e n t an racea y pro ems
No consistent st
e
proposing
erview
7/27/2019 Experimentos Espaciales de PMODWRC Para Medir La Constante Solar y La Influencia de Irradiance Solar en El Cli…
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ysikalisch-Meteorologisches Observatorium Davos
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TSI – including TIM/SORCE
Absolute measurements cannot be used toconstruct a long-term record
Æ Merge to a relative composite
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TSI – comparisons of differentcomposites
Courtesy of Claus Fröhlich
Different composites predictdifferent long-term trends:
erview
7/27/2019 Experimentos Espaciales de PMODWRC Para Medir La Constante Solar y La Influencia de Irradiance Solar en El Cli…
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ysikalisch-Meteorologisches Observatorium Davos
's
re
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Why irradiance measurements?
Space Climate:
Long term rcord of the Solr Irradince Onlong term, it is not known what dominates, secular hang f Total Solr Irradiance or Influence of the long-term variations on the chem
mposit ion of he upp t thspectrl (UV) variationpropagation to the tropos
But: although UV variations are much larger (up to climate
100%) all spectral variations are highly correlatedto TSI variations
n s or ermIUGG 2007: Rozano E Ega tosphe re i sd Mitg f t
i m ulation of theSession MS020p temperaturerespose to the soar rradiance UV(Ly-α and 220 nm Herzberg band)rradiance Solar Activity and its Influences on the
?
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What is the influence of the Sun on the climate?
Graphics: Dr. J. Beer EAWAG, Switzerland
erview
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ysikalisch-Meteorologisches Observatorium Davos
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Climate Anomaliesversus solar influence
River Thames in London 1813/1814
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Predicted long-term trend of
TSI 100 years
Different “educated”
guesses!
erview
7/27/2019 Experimentos Espaciales de PMODWRC Para Medir La Constante Solar y La Influencia de Irradiance Solar en El Cli…
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ysikalisch-Meteorologisches Observatorium Davos
Three minima in the latest
(August 2006) version of the PMOD-composite
T p r n m 0 1 5W / m 2 ( = 0 p p m
irradiance measurements at theowe than the previus
Th th ii t i thi thighest possible accuracy!within ±0.08 W/m
2(0006% or 60
ÎSolution: twin instrument
experiment as VIRGO on SoHO
and PREMOS+SOVAP on PICARDp p p
http:www.pmodwrc.ch follow the links:
4 projects 4 Solar Constant / Solar Irradiance 1 2 . 3 . 2
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Predicted long-term trend of TSI 400 years
Different “edu
guesses!
Suspected secular change of TSIneeds to be confirmedobservationallyted”
4 requires long term observation
of several decades!
erview
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ysikalisch-Meteorologisches Observatorium Davos
Future TSI experiments
D I A R A D P M O 6 S P M L O I SoHO launch 2. December 1995
VIRGO instruments
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Two absolute radiometers:- PMO6V (A & B)
- DIARAD (L & R)
Precision Filter Radiometer (blue, green, red)
Image of the Sun in the green light in low resolution
(12 pixels): 1 minute sampling ___________
VIRGO/SoHO:operational since 1996
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3/4 GLORY (USA: no launch date – ready tobe used as gap-filler)
3/4 SOVIM/ISS and
3/4 PREMOS+SOVAP/PICARD
approved TSI experiments of PMOD/WRC
3/4 RAD/KuaFu-A only future TSI experiment
presently being considered
erview
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ysikalisch-Meteorologisches Observatorium Davos
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Space experiments are beingbuilt in house at PMOD/WRC
today
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Space experiments of PMOD/WRC
erview
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ysikalisch-Meteorologisches Observatorium Davos
PICARD (PI G. Thuillier)PREMOS – SOVAP – SODISM
Total Solar Irradiance
Filter Radiometers
tellite
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Total Solar Irradiance
observations until 2012
CRIM III 2000 - ?
IRGO/SOHO 1996 - 2009 (+?
TIM/SORCE 2003 - 2008 - (?)
SOVIM/ISS 2008 – 2009 ?
PREMOS/PICARD 2009 – 2011
SOVAP/PICARD
(SDO 2008-2012 has no TSI instrument)
System may have TSI t –but are planned o startnot earlier than 2009 (?), more liky as 201
NPOESS 012
National P ig Operational Environmental
erview
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ysikalisch-Meteorologisches Observatorium Davos
. .
Total Solar Irradianceobservations until 2012
ACRIM III 2000 - ?
VIRGO/SOHO 1996 - 2007 - 2009
TIM/SORCE 2003 – 2008 - (GLORY?)
SOVIM/ISS 2007 - 2009 ?
PREMOS-TSI/PICARD 2009 - 2013
SOVAP/PICARD
(SDO 2008-2012 has no TSI instrument)
KuaFu-A 2012 -irradiance measurement experiment comprising:Æ SIM = Solar Irradiance Monitor (CN: PI Daren Lu) Æ DOR = Davos Observatory Radiometer (CH: Werner Schmutz)
. .
onc us ons
Short-term irradiance variations (days) are closely
related to variations of the chemical composition of theupper atmosphere
Æ space weather: operational monitoring of TSI
Long-term irradiance variations (tens to thousands of
years) are probably (!) related to climate variations
Æ space climate: secular long term change of TSI
TSI observations are most likely continuous andoverlapping until about 2012
RAD/KuaFu-A would be a matching continuation
erview
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ysikalisch-Meteorologisches Observatorium Davos
Integration of LYRA
on PROBA2
5.3.2007
Thank you for your attention!