geo adc meeting, geneva, may 2008 slide # 1 da-07-03 da-07-03 virtual constellations ivan...

GEO ADC meeting, Geneva, May 2008

Slide # 1

DA-07-03DA-07-03

Virtual Constellations

Ivan Petiteville, CEOS

GEO ADC Meeting,Geneva, May. 2008


Slide # 2

Task Description

• Development of Virtual Constellations within CEOS framework in consultation with User Communities

• Objectives:– Improve the temporal, spatial and spectral

coverage & resolution as well as data management and dissemination

– Satisfy the requirements and objectives of the GEO SBAs


Slide # 3

Current CEOS Constellations• Precipitation, which aims to strengthen international cooperation on space-

based observations of precipitation, including realisation of the GPM mission and providing guidance to new;

• Land-Surface Imaging, designed to ensure the relevant synergy with High Resolution Multispectral Imager Continuity;

• Ocean Surface Topography, designed to ensure continuity of Sea Level measurement in accordance with GCOS requirements;

• Atmospheric Chemistry, which will address many of the needs for atmospheric observations of the climate community;

• All 4 constellations reported significant progress since 2007 CEOS Plenary (Nov. 07)


Slide # 4

Future Potential Constellations

• Virtual Constellations White Paper– On-going disagreement between CEOS Agencies on the last

version presented at SIT-21

• Two new candidates – Ocean Color Radiometry and Ocean Surface Wind Vectors– Presented at SIT-21– Authorized by CEOS to proceed with generation of full proposals

(next 3 months)– Subject to final approval by CEOS (Nov. 08 at latest)


Slide # 5

CEOS-GEO Actions per SBA

• 1/3 of CEOS actions address more than one SBA

Cross-cutting nature of CEOS Actions


Slide # 6

CEOS Actions per Constellations

ACC: 13 actions incl. 6 cat. 1 – supporting 6 SBAs (8 GEO Tasks)

LSI: 17 actions incl. 6 cat. 1 – supporting 4 SBAs (8 GEO Tasks)

OST: 7 actions incl. 4 cat. 1 – supporting 5 SBAs (6 GEO Tasks)

PC: 15 actions incl. 7 cat. 1 – supporting 5 SBAs (6 GEO Tasks)

Cross-cutting nature of constellations

Important contribution ofconstellations


Slide # 7

Precipitation Status

Status as presented at SIT-21 (Apr. 08)

• Progress since 21st CEOS Plenary (Nov. 07)– 7th GPM International Planning Workshop, 5-7 December 2007– U.S.- Japan PC Study Team Meeting, 7 December 2007– X-Calibration Working Group (WG) Meeting (in coordination with

WMO CGMS/GSICS)– CEOS SIT Chair Tag Up, 20 February 2008– SIT CEOS-GEO Workshop, 20-22 February 2008– 3rd GPM International Ground Validation (GV) Workshop– Moving GPM from formulation to implementation phase at NASA

and JAXA– Several future plans prepared: CEOS PC IP v0.4, CEOS PC 2008

Plan v2.4


Slide # 8

Land-Surface Imaging: Status

Status as presented at SIT-21 (Apr. 08)

• Progress since 21st CEOS Plenary (Nov. 07)– Participated in the CEOS Space Component Contributions to GEOSS exercise– Declaration of intent signed by 7 out of 8 agencies to cooperate more fully– Three follow-up agreements drafted. Not signed by anyone yet. – Preliminary standards developed for future LSI systems– Draft agreement prepared to provide data to Forest Resources Assessment

for 2010 (FRA2010).– Draft agreement prepared to provide data to fill gaps to FRA2010.– Held a LSI Constellation Study Team meeting.

• Review and reflect on 2007 activities.• Look strategically at LSI Constellation activities.• Define a strong, but achievable 2008 Work Plan.

– Prepared a LSI Constellation 2008 Work Plan.• Complete unfinished tasks from 2007.• Initiate a new radar focus area.• Compile regional data sets over selected areas. Compile a 2010 global mid-

resolution dataset.


Slide # 9

Ocean Surface Topography: Status (1/2)Status as presented at SIT-21 (Apr. 08)

• Goals of the OST Constellation: – implement a sustained, systematic capability to observe the

surface topography of the global oceans – address global sea level rise and the role of oceans in climate, as

well as support operational forecasting.

• Approach: – maintain continuity of the high-accuracy Jason altimetry time

series; maintain continuity with altimeters on at least two complementary, high-inclination satellites, and extend the capability of altimetry to denser observational coverage through the development of swath altimetry.


Slide # 10

Ocean Surface Topography: Status (2/2)• Progress since 21st CEOS Plenary (Nov. 07)

– Altimeter missions in orbit• Jason & ENVISAT – performing well• GFO – power too low in eclipse; reaction wheel too hot in full sun

– Missions in development• OSTM/Jason-2 – OK for launch 15 June 2007• CryoSat-2 – good progress for launch in 2009• SARAL – CNES payload due Sept/Oct, launch late 2009/early 2010• HY-2A – CNES/SOA negotiations re: DORIS; launch in June 2010• Sentinel-3A – good progress for launch in 2012

– Missions in planning• Jason-3 – EUMETSAT, NOAA, CNES, ESA & EC need to resolve approach and seek

funding for an OSTM/Jason-2 follow-on• OST Constellation Workshop (29-31 Jan 2007) developed 15-year strategy;

Invitation to Tender issued for a Missions Requirements Document for the Constellation

• Surface Water and Ocean Topography (SWOT) – Workshop on Mesoscale Oceanic Processes: Explorations with Wide-Swath Interferometry Radar Altimetry, 28-30 April 2008, at Scripps; NASA/CNES Feasibility Study to start shortly


Slide # 11

Atmospheric Chemistry: Status

Status as presented at SIT-21 (Apr. 08)• Progress since 21st CEOS Plenary (Nov. 07)

– 4 near term projects to demonstrate the Constellation concept. Projects involve five of its international partners using seven different instruments. Projects were selected for near term results and aligned with GEO SBAs. The 4 projects are:

• Pollution prediction using Envisat and Aura: Health/Air Quality (NOAA lead).• Aircraft volcanic ash warning using Envisat and Aura: Hazards (ESA lead).• Smoke prediction from biomass burning using Aura, Aqua, CALIPSO: Hazard

and Health (NASA lead).• Algorithm and cal/val collaboration between GoSAT (JAXA) and OCO (NASA):

Climate (WGCV Lead).– Requirements and Gap Analysis underway; draft report expected (Jun. 08)– Longer term projects will engage more satellites and international partners

focused toward GCOS Climate objectives. Planning with CSA, JAXA, ESA, and EC (NASA lead for now) Climate.

– All projects engage WGCV, WGISS and the SEO. Plan to engage WGEdu.

geo adc meeting, geneva, may 2008 slide # 1 da-07-03 da-07-03 virtual constellations ivan...

Documents