ben veihelmann atmospheric section of the mission science division esa/estec [email protected],...

Ben Veihelmann

Atmospheric Section of the Mission Science Division ESA/ESTEC

[email protected], +31-72-565-5210

ESA Atmospheric Satellite Missions

Atmospheric Composition Observational Requirements

Task Team Meeting #1, 10-13 Nov 2014, WMO, Geneva, Switzerland

Atmospheric Composition Observational Requirements Meeting #1 | Nov 2014 | WMO, Geneva, Switzerland | Slide 2


Copernicus Sentinel Missions Earth Explorer Missions



Mission Year 20** 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

Sentinel-3

Sentinel-4

Sentinel-5

Sentinel-5 Precursor

EarthCARE

ADM Aeolus

CarbonSat

FLEX

Earth Explorer 8 Candidate Mission

Copernicus Sentinel Mission

Earth Explorer Mission

Expected Mission Lifetime



Mission Service

Stratospheric Processes

Global & Regional Air Quality

Climate Volcanic Emissions

Sentinel-3

Sentinel-4

Sentinel-5


EarthCARE

ADM Aeolus aerosol by-product aerosol by-product

CarbonSat aerosol by-product

FLEX aerosol by-product aerosol by-product


Copernicus Sentinel Mission


Atmospheric Composition Monitoring Services Themes addressed per Mission


Atmospheric Composition Products Of Sentinels

Product

Application Copernicus Sentinel Mission

Air Quality

ClimateStratosp. processes

other S3 S4(#) S5(#) S5P

O3 total & trop. col. X X X X X X

O3 enhanced sensitivity

to lower trop.X

Synergy MTG-IRS

O3 stratospheric profile X X X

NO2 total & trop. col. X X X X

SO2 total column X volcanic emission X X X

CHOCHO total column X NMVOC emission X X TBC

CH2O total column VOC emission X X X

Aerosol optical depth / type / index

X Xvolcanic emission & aux

X X X

Aerosol height X X volcanic emission X X X

CH4 X X X

CO X X X X

H2O X? NWP? X

CO2 X X

HDO X X UT/LS exchange X

Cloud characteristics auxiliary X X X

Surface characteristics auxiliary X X X X

#) Sentinel-4 and -5 Level-2 product lists are TBC ; grey X: priority 2


Atmospheric Composition Products of Earth Explorer (Candidate) Missions

Product

Application Earth Explorer Mission

Air Quality

Climate otherADM

Aeolus EarthCARE CarbonSat FLEX

Aerosol

optical thickness X X auxiliary X By-product By-product

Ext. coeff. profile X X X X

Type X X X

Ångström coeff. X X auxiliary X By-product

Cloud characteristics X X

CH4 X X

H2O auxiliary X

CO2 X X




Applications of Atmospheric Composition User Requirements

• Sentinel-4/-5 Air quality protocol monitoring & near-real time services, climate protocol monitoring

– Capacity Study Final report

– IGACO report (GAW 159)

– GMES Atmosphere Services Implementation Group Final Report

– Science Requirements Document for TROPOMI (S5P)

– Camelot study results, S-4/-5 Mission Advisory Group advice

• CarbonSat climate protocol monitoring & scientific assessment– Mission Requirement Document v1.2

• Climate Change Initiative Fundamental Climate Data Records of EVCs meeting requirements of GCOS, MACC, CMUG

– GHG-CCI URD v2 (CO2 and CH4 regional sources & sinks)

– Ozone-CCI URD v2.1

– Aerosol-CCI URD v1.4

Driving application areas in red

Later than IGACO 2004, consider URs for update

User Reqs.

Mission Reqs.

System Reqs.


Lessons Learnt from Applying these User Requirements in S-4/-5/-5P

• UR tables in TROPOMI Science Requirements Doc

• Relax threshold for HCHO (OSCAR 15%) and SO2 (OSCAR 20%).

Measurements useful after temporal and/or spatial averaging

• Define abundance lower limit (x0) for relative error

and absolute error (sx) for background conditions

• Distinguish systematic and random errors (already in IGACO 2004)

• Specify UR for glyoxal? ( non-methane VOC emission estimates)

• Specify UR for ammonia? ( PM formation, human and plant health)

s x

x0


Lessons Learnt from Applying these User Requirements in CCI

• UR Tables in CCI URDs for GHG, O3 and aerosol

• Distinguish bias and temporal stability of bias for CO2 and CH4

• Combine GHG single-measurement precision with number of (useful) data in a given spatio-temporal interval

• Associate aerosol accuracy and stability to spatial and temporal resolution

• Define absolute accuracy limit for low AOD and instantaneous local scale data; relative limit for larger regions and detection of trends.

s xx0


Thank you for your attention!

Ben Veihelmann

Atmospheric Section of the Mission Science Division ESA/ESTEC

[email protected], +31-72-565-5210


Backup slides


Sentinel-3

Mission Objective: European global land and ocean monitoring. 2 day global coverage, real-time (<3h) products

Key Facts• Launch 2015 with Rockot/Vega• 7 year lifetime (consumables for 12 years)• Sun-synchronous orbit 10h at desc. node, 27-days repeat• Operational configuration 2 satellites

Payload• OLCI (Ocean and Land Colour Instrument)• SLSTR (Sea and Land Surface Temperature Radiometer)• SRAL (Sentinel-3 Ku/C Radar Altimeter)• MWR (MicroWave Radiometer)• POD (Precise Orbit Determination)


Sentinel-4 Mission Implementation

Application: • Air quality

Instrumentation: • UV-VIS-NIR spectrometer • Use of thermal IR sounder (IRS)

and imager (FCI) on MTG-I

UV-VIS-NIR with spectral bands 305 – 500 nm and 750 – 775

nm Spatial sampling of 8 km at 45°N and spectral resolution

between 0.12 nm and 0.5 nm Geostationary orbit, at about 0o longitude Embarked on MTG-Sounder Satellite and operated by

EUMETSAT

Yaw-flip at equinox

UVN

IRS


Sentinel–5 Mission Implementation

Instrumentation: • UV-VIS-NIR-SWIR spectrometer• Use of thermal IR sounder, cloud

imager and polarisation imager

UV-Visible (270-500nm) NIR (685-775nm) SWIR (1590–1675nm; 2305-2385nm) Spectrometers with spectral resolutions between 0.25 nm and 1.0 nm Spatial sampling with 50 (T)/15 (G) km < 300nm and 15 (T)/5(G) km >

300 nm Global daily coverage Sun-synchronous Low Earth Orbit platform at 824 km mean altitude Embarked on EPS-SG, operated by EUMETSAT

Applications: • air quality, climate forcing and

stratospheric ozone, tropospheric chemistry


Sentinel–5 Precursor Mission Implementation

Applications: • air quality, climate forcing and

stratospheric ozone, tropospheric chemistry

Instrumentation: • UV-VIS-NIR-SWIR spectrometer

(UVN = NL, SWIR = ESA) UV-Visible (270-500nm) NIR (675-775nm) and SWIR (2305-2385nm) Grating spectrometer Global daily coverage with 7 km

sampling at nadir Sun-synchronous Low Earth Orbit

platform at 824 km mean altitude Guarantees data delivery for GMES

Atmospheric Services 2016-2020


Sentinel-4/-5/-5P Mission Implementation

Mission Platform InstrumentUtilization of data from

Imager Infrared sounder Other

Sentinel-4 MTG-S UVN spectrometer FCI IRS LI

Sentinel-5 Metop-SG UVNS spectrometer VII IAS 3MI


dedicated LEO

UVNS spectrometer

TROPOMI VIIRS CrIS OMPS

UVNS = UVN + Short wave infraredVII = Visible/Infrared Imager (MetImage)IAS = Infrared Atmospheric Sounder (IASI-NG)3MI = Multi-viewing, -channel, -polarisation Imager

TROPOMI = TROPOspheric Monitoring Instrument VIIRS = Visible Infrared Imaging Radiometer Suite CrIS = Cross-track Infrared Sounder OMPS = Ozone Mapping Profiler Suite

MTG-S/I = Meteosat Third Generation Sounder/Imager MetOp-SG = MetOp-Second GenerationSNPP = Suomi National Polar-orbiting Partnership JPSS = Joint Polar Satellite System

UVN = Ultraviolet + Visible + Near infraredFCI = Flexible Combined Imager (on MTG-I)IRS = InfraRed Sounder LI = Lightning Imager (on MTG-I)

ben veihelmann atmospheric section of the mission science division esa/estec [email protected],...

Documents

switzerland slide

air quality protocol

product lists

xxxx h2oh2o x

xxxxxx o

profile xxxx type

x synergy mtg irs o

climate protocol