imos remote sensing cal/val twin goals: local algorithm and product development contribute to global...
TRANSCRIPT
IMOS Remote Sensing Cal/Val
• Twin goals:• Local algorithm and product development• Contribute to global databases and algorithms
• 3 main activities• SST, Helen Beggs@BoM (Presentation by Chris Griffin today)• SSH, Christopher Watson@UTAS• OC, Thomas Schroeder@CSIRO
1. Facility runs only Southern Hemisphere cal/val for SSH
2. Direct feed back to global mission science team making ongoing contribution to the NASA/CNES/ NOAA/EUMETSAT “Jason-class” missions. Contribution at the mission science team level continues to be mutually beneficial.
3. Critical component of future mission design
4. Improves performance of previous missions via retrospective improvements to processing.
5. Jason-3 (was March 2015, but now slightly delayed)
6. Prepare for first of the Sentinel-3 missions:• Plan submitted to the S-3 validation team. • Expanded collaboration with French for S-3
7. Paper at Nature Climate Change revising global mean sea level change over satellite era – crux of which is improved cal/val
PASS 088
Bass StraitStorm Bay
Sea Surface Height – Satellite Altimetry
OC1 - Status Lucinda Jetty Coastal Observatory (LJCO)(
• Operational data acquisition re-established Jan 2014• Continuous measurements + fortnightly water sampling
LJCO
Hinchinbrook Channel
Herbert River Estuary
Lucinda Jetty
0 1 2 km
N
LJCO
Hinchinbrook Channel
Herbert River Estuary
Lucinda Jetty
0 1 2 km0 1 2 km
N
• Full in-water IOPs and above water AOPs• Aeronet site
• Currently funded until June 2016 (by IMOS & CSIRO)
• Instrument refresh underway with YASI insurance reimbursement
SeaPRISM (7 wavelengths)Water-leaving radiance Aerosol optical thicknessAerosol absorptionAerosol size distributionRefractive indexSingle scattering albedoPhasefunctionWater vaporSpectral fluxRadiative forcing
Weather StationTemperaturePressureHumidityDew pointWind speed etc
Satlantic Spectral irradiance
WebcamsSky and Sea
(A)
(A)
(B) (B)
(B)
(C)
(C)
(D)
(D) Overview above-water measurements
WetStar fluorometerCDOM absorptionChlorophyll-aUraninePhycoeryhrin
WQMTemperatureSalinityDepthDissolved oxygenTurbidityBack scatteringChlorophyll fluorescence
ACs (80 wavelengths)Total absorptionTotal attenuation
ACs switching unit(filtered/unfiltered)
BB9 (9 wavelengths)Back-scattering
DAPCSNetwork enabled real-time data logger
Automatic winch controller keeps cage at a constant depth
Overview in-water optical measurements
Fortnightly servicing and water sampling
OC2 - Continuous above water radiometry (DALEC) RV Investigator ( prev. Sthn. Surveyor) + RV Solander
Permanent installation scheduled for early 2015 3 x Zeiss MMS1 UV-VIS NIR10 nm spectral resolution16 bit ADCNIST traceable calibration 400-900 nmManufacturer: In-situ Marine Optics, Australia
OC3 – Aust. bio-optical data base + satellite products• Continued acquisition of bio-optical data from the Australian research
community into the IMOS bio-optical data base and data provision to NASA (SeaBASS) and ESA (Mermaid) as well as ESA’s Ocean Colour Climate Change Initiative (OC-CCI).
Data updates to SeaBASS (Jan-June 2014)
• Locally (NCI) processed whole-of-mission data archives for SeaWIFS, MODIS (with TERN) and VIIRS for use in matchup analysis.
• Aust. MERIS archive also available. • Matchup paper for Global Chl-a alg
submitted.
NCILong Term StoreLevel-0, 35+TB
Short Term Store,DB <0.5TB
WA
DAR
VICTAS
QLD
AlsSp AARNET
NASAArchiveUS East Coast
Internet
National Standard Production Facitility(IMOS,Auscover)
Experimental/Development
Local Projects
RemoteUser/Project
NCIDirect Broadcast
Historical Archive
Sentinel-3 Ocean Colour Cal/Val support
• Joint S3 Cal/Val proposal (CUT, CDU and CSIRO) accepted by ESA/EUMETSAT to support Ocean Colour product validation in the Australian region.
• S3 now to be launched 2nd half of 2015.
• ESA/EUMETSAT acknowledge AERONET-OC as main validation data source for S3.
• 2020 Horizon as external funding source to support IMOS infra-structure very unlikely. Survey outcome on funding priorities (that went to industry) revealed:
Priority for in-situ observations is low and for cal/val very low!