Download - CWG COA Program Review Panel #8 Space-based Observing Systems and Related Data Stewardship
CWG Review April 11-13, 20071
CWG COA Program Review
Panel #8Space-based Observing Systems and
Related Data Stewardship
Panel Moderator: Mark AbbottChair: Jeff Privette
April 13, 2007
CWG Review April 11-13, 20072
COA Program Review Panel 8: Space Obs. & Stewardship
Activities• Planning support of climate-related satellite missions
Cost studies Variable prioritization
• Climate Data Record (CDR) development and stewardship Support of sensor calibration, pre- and post-launch characterization Sensor monitoring Algorithm development/refinement CDR (re-)processing and configuration management (CM) Product validation Data Handling (documentation, metadata, QA, data librarian functions)
CDRs Cal/Val data, including sensor performance and configuration
CLASS interfacing
CWG Review April 11-13, 20073
Key Questions
What is NOAA’s role in space observing and related data stewardship in Climate and what are NOAA’s expectations?
What is the current status of NOAA/NASA activities related to Nunn-McCurdy and NRC Decadal Survey?
What role can (should) COA or the Climate Goal play in the satellite observing system?
How are we working to overcome current obstacles to success?
How does the interagency “process” factor into the Climate Goal (including research to operations)?
What are the impediments and solution to developing climate data records?
CWG Review April 11-13, 20074
Outline
Scientific Data Stewardship – History Steps Toward Operational Production
of Climate Data Records– Prioritization– Production– Productivity
Climate Goal response to NPOESS Nunn-McCurdy and Decadal Survey
CWG Review April 11-13, 20075
Outline
Scientific Data Stewardship – History
Steps Toward Operational Production of Climate Data Records– Prioritization– Production– Productivity
Climate Goal response to NPOESS Nunn-McCurdy and Decadal Survey
CWG Review April 11-13, 20076
NOAA’s Scientific Data Stewardship rooted in NRC dialogue and reports
NOAA/NRC SDS leads
– Bates
– Goldberg
Scientific Data Stewardship
CWG Review April 11-13, 20077
NRC – NOAA Response
With the transition of the U.S. Global Change Research Program into the Climate Change Science Program (CCSP), NOAA was identified as the lead U.S. Agency on climate.
NOAA’s new climate mandate is fundamentally different from its traditional weather forecasting mandate and raises a new set of challenges owing to the varied uses of climate data, the complexities of data generation, and the difficulties in sustaining the program indefinitely.
In response to this change and the planned transition of NASA research climate observing missions to the NPOESS mission, the Scientific Data Stewardship Project was proposed to begin the operational production of climate data records.
CWG Review April 11-13, 20078
Key Elements of a Successful CDR Program
CDR Organizational Elements
• High-level leadership council
• Advisory council to represent climate research community and other stakeholders
• Fundamental Climate Data Record (FCDR) Teams
• Thematic Climate Data Record (TCDR) Teams
CDR Organizational Elements
• High-level leadership council
• Advisory council to represent climate research community and other stakeholders
• Fundamental Climate Data Record (FCDR) Teams
• Thematic Climate Data Record (TCDR) Teams
CDR Generation Elements
• High accuracy and stability of FCDRs
• Pre-launch characterization of sensors and lifetime monitoring
• Thorough calibration of sensors
• Well-defined criteria for TCDR selection
• Stakeholder involvement and feedback for TCDRs
• Well-defined criteria for TCDR validation
• Use of in-situ data for validation
CDR Generation Elements
• High accuracy and stability of FCDRs
• Pre-launch characterization of sensors and lifetime monitoring
• Thorough calibration of sensors
• Well-defined criteria for TCDR selection
• Stakeholder involvement and feedback for TCDRs
• Well-defined criteria for TCDR validation
• Use of in-situ data for validation
Sustaining CDR Elements
• Available resources for reprocessing CDRs as new information becomes available
• Provisions for feedback from scientific community
• Long-term commitment of resources for generation and archiving of CDRs and associated data
Sustaining CDR Elements
• Available resources for reprocessing CDRs as new information becomes available
• Provisions for feedback from scientific community
• Long-term commitment of resources for generation and archiving of CDRs and associated data
Fundamental Climate Data Record (FCDR): Time series of calibrated signals for a family of sensors together with the ancillary data used to calibrate them.
Thematic Climate Data Record (TCDR): Geophysical variables derived from FCDRs, often generated by blending satellite observations, in-situ data, and model output.
A Climate Data Record (CDR) is a time series of measurements of sufficient length, consistency, and continuity to determine climate variability and change
Climate Working
Group
NOAA Science Advisory
Board
Scientific Data Stewardship
CLASS Working Group
Scientific Data Stewardship
Program Management
Research Climate Data Science Teams
FCDR Teams
Observations Scoping
Requirement Systems
C2D2 NCDC ORA
FY06EDSM $2.5M
C2D2 $1 to $1.5MGovernance and Management Structure
TCDR Teams
R&D Products and
Services Theme Areas
NOAA
(5-10%)
External
(1-2%)
NOAA, Other
Agencies External Scientific
(~90%)
NOAA Climate Program & Climate Board
NOAA Observing System Council
Operational CDR Generation & Data Mgmt.
CDR Generation
NOAA
Other Agencies
Universities
Private Sector
CLASS
NOAA IT Infrastructure
operators
Research to
Operations
Currently exists FY05 FY06
NOAA’s Scientific Data Stewardship Program
9
CWG Review April 11-13, 200710
Global Space-based Inter-Calibration System(GSICS)
OBJECTIVES Improve global satellite data sets by
ensuring observations are well calibrated through operational analysis of instrument performance, satellite intercalibration, and validation over reference sites
Provide ability to re-calibrate archived satellite data with consensus GSICS approach, leading to stable fundamental climate data records (FCDR)
Ensure pre-launch testing is traceable to SI standards
IMPLEMENTATION NESDIS/STAR coordination International participation
STATUS GSICS-1 convened in January 2007
– Method intercomparison underway
NEXT STEPS Commission routine web-accessible on-orbit
intercalibration monitoring statistics of MTSAT, MSG and GOES IR imagers with high spectral resolution IASI and AIRS; and intercalibration statistics between EUMETSAT and NOAA IR and MW sounder/imagers (e.g. AIRS vs IASI, MODIS vs AVHRR, HIRS vs IASI)
Research WG Data WG
Coordination Center
Regional Processing ResearchCenters at Operational Space Agencies
Calibration Support Segments (reference sites, benchmark measurements)
CWG Review April 11-13, 200711
Outline
Scientific Data Stewardship – History Steps Toward Operational
Production of Climate Data Records– Prioritization– Production– Productivity
Climate Goal response to NPOESS Nunn-McCurdy and Decadal Survey
CWG Review April 11-13, 200712
Operational Climate Data Records –Prioritization, Production, & Productivity
CWG Review April 11-13, 200713
CCSP identified– Thematic Areas where data
may provide societal benefit– Scientific Questions for
which data are needed to address
Societal Benefits of the Global Earth Observations System of Systems (GEOSS) emphasize applied climatology using 21st century systems
Scientific Questions Intergovernmental Panel on Climate Change (IPCC) Issues address the policy-relevant research topics of highest priority for Climate and Global Change studies
Determining Societal Benefits and Scientific Questions
CWG Review April 11-13, 200714
Prioritization Approach
CCSP and Other Groups have identified ~40 “Essential Climate Variables” (ECVs) q– e.g., Total Solar Irradiance, Snow Cover, Ozone
ECV weighting scheme reflects the expected contribution of a data set to each of the Thematic Areas and Scientific Questions
Prioritization results from strength & breadth of contribution– Trying to avoid disciplinary myopia
Adding additional information based on availability of current and past data sets
CWG Review April 11-13, 200715
Outline
Scientific Data Stewardship – History Steps Toward Operational Production
of Climate Data Records– Prioritization– Production– Productivity
Climate Goal response to NPOESS Nunn-McCurdy and Decadal Survey
CWG Review April 11-13, 200716
Production of CDRs vs. EDRs
Sensor DataRecords (SDRs)
Data (Direct & Remotely Sensed)
Fundamental Climate Data
Records (FCDRs)
Thematic Climate Data Records
(TCDRs)
Climate Data Records or Homogenized Time Series
Homogenization and Calibration
Time-tagged Geo-Referenced
Converted to Bio-Geophysical
Variables
EnvironmentalData Records
(EDRs)
Converted to Bio-Geophysical
Variables
Climate Data Records
Re
pro
ce
ss
ing
CWG Review April 11-13, 200717
NOAA CDR Production – “Climate Central” Requirements
– For reprocessing, SDS requires an IDPS-like system (Climate Central) to process:
– SDS interdependent
with CLASS, e.g., large data set I/O
– Reprocessing– Requires full
production engineering
NOAA/CLASS Users
ACQUIRE RDRs
IMPROVED SDRsMULTISATELLITE
FCDRs
PROCESS TCDRs
PROVIDEASSESSMENTSIMPROVEMENTS
NOAASDS
CLIMATECENTRAL
Products and Services
Provide FCDRs and TCDRs
RDR SDR Multi-satellite FCDRs & TCDRs
Existing Site
Planned Site
250
260
270
280
290
300
310
100
700
1300
1900 10
070
013
0019
00 100
700
1300
1900
LST
tem
per
atu
re (
K)
CRN sfc temp
GOES-12 sfc temp
Courtesy: A. Heidinger, UWisc.
• CRN data are already used to evaluate satellite products in project studies
Merced (CA)Merced (CA)
Stovepipe Wells (CA) Stovepipe Wells (CA) Death Valley National ParkDeath Valley National Park
CWG Review April 11-13, 200719
Production Example
Reynolds SST Data Flow Diagram
CWG Review April 11-13, 200720
Production – Full Provenance Tracking 3 Days of Reynolds SST
CWG Review April 11-13, 200721
Outline
Scientific Data Stewardship – History Steps Toward Operational Production
of Climate Data Records– Prioritization– Production– Productivity
Climate Goal response to NPOESS Nunn-McCurdy and Decadal Survey
Hurricane intensity historically estimated from “best track” data, in spite of its inherent temporal heterogeneities
NCDC provided homogeneous 23-year satellite data set (~CDR)
– >20 satellites in 14 formats– Removed intra-series and temporal biases– Comprise ~169,000 observations (~2000 storms)
UW developed an objective analysis algorithm to work with NCDC data
– Algorithm trained in N. Atlantic and E. Pacific– Very similar to objective Dvorak technique which is
valid in all oceanic basins
“UW/NCDC” intensities have little temporal bias
Productivity - Hurricane Intensity Reanalysis
~169,000 images~2,000 tropical cyclones
CWG Review April 11-13, 200723
Outline
Scientific Data Stewardship – History Steps Toward Operational Production
of Climate Data Records– Prioritization– Production– Productivity
Climate Goal response to NPOESS Nunn-McCurdy and Decadal Survey
CWG Review April 11-13, 200724
Impacts of NPOESS Nunn-McCurdy Certification on Joint NASA-NOAA Climate Goals Recent Activities
June 2006: NPOESS Nunn-McCurdy Certification approved
June 2006 : NOAA-NASA brief OSTP on impacts of Certification on the nation’s climate goals
January 2007: NOAA-NASA deliver a Joint Assessment (“White Paper”) to OSTP (72 pp.)– Focused on Certification’s climate impacts and recovery options– Major emphasis on sustaining climate data records
Climate Change Science Program / Global Climate Observing System lists– Primarily followed Certification Board recommendation
Procuring lost sensors outside of Integrated Program Office (IPO) Remanifesting sensors onto NPOESS platforms (IPO would cover integration)
February 2007: NRC Decadal Survey – Recommends “restore key observational capabilities to NPOESS”– NOAA:
Measurements of solar irradiance and Earth radiation budget Measurements of ocean vector winds and all-weather SST OMPS-Limb (high vertical resolution ozone sounding)
IMPACTS OF NPOESS
NUNN-McCURDY CERTIFICATION
ON JOINT NASA-NOAA
CLIMATE GOALS
January 8, 2007
CWG Review April 11-13, 200725
NPOESS ECV Coverage
• ALBEDO (SURFACE)• LAND SURFACE TEMP• LAND COVER• OCEAN COLOR• VEGETATION LEAF AREA• VEGETATION FAPAR• FIRES DISTURBANCE
• CLOUD PROPERTIES• SEA ICE• SNOW COVER• SEA SURFACE TEMP• UPPER AIR WIND (POLES)
• SOLAR IRRADIANCE
• AEROSOL PROPERTIES
• PRECIPITATION•SURFACE WIND SPD & DIRECTION
• ATMOS. WATER VAPOR• UPPER AIR TEMP
• OZONE• METHANE, CO2, GHG
• RADIATION BUDGET (SFC & TOA)
• SEA STATE• SEA LEVEL
VIIRS(14)
TSIS(1)
APS(1)
MIS (W/ OVW CAPABILITY)(10)
CrIS/ATMS(4)
OMPS(2)
SESS(0)
ERBS/CERES)(1)
ALT(4)
Homeless:• OCEAN SALINITY• BIOMASS
• LAKES
• GLACIERS/ICE CAPS
CWG Review April 11-13, 200726
Impacts of Nunn-McCurdy By Sensor
1. Total Solar Irradiance Sensor (TSIS)
2. Earth Radiation Budget Sensor (ERBS)
3. Ocean Altimeter (ALT)
4. Ozone Mapping & Profiler Suite (OMPS) Limb Subsystem
5. Aerosol Polarimeter Sensor (APS)
6. Mid-AM VIIRS
De-manifested Sensors in Science Priority
CWG Review April 11-13, 200727
NPOESS ECV Coverage
• ALBEDO (SURFACE)• LAND SURFACE TEMP• LAND COVER• OCEAN COLOR• VEGETATION LEAF AREA• VEGETATION FAPAR• FIRES DISTURBANCE
• CLOUD PROPERTIES• SEA ICE• SNOW COVER• SEA SURFACE TEMP• UPPER AIR WIND (POLES)
• PRECIPITATION•SURFACE WIND SPD & DIRECTION
• ATMOS. WATER VAPOR• UPPER AIR TEMP
• OZONE• METHANE, CO2, GHG
VIIRS(14)
MIS (10)
CrIS/ATMS(4)
OMPS(2)
• LAKES
• GLACIERS/ICE CAPS
= Downgraded capability (via orbit, component or requirement losses)
CWG Review April 11-13, 200728
Global Essential Climate Variables (ECVS- Groups of CDRs) with Heritage Records
CWG Review April 11-13, 200729
Current Related Activities
February 2007: OSTP requests a NOAA-NASA cost/risk study – Remanifestation of sensors onto NPOESS (Two options)
Option 1 – NPOESS/IPO procures the sensors Option 2 – “GFE” sensors to IPO for integration on NPOESS satellites
– Parallel cost-study of alternative options Free-flyers, foreign missions, etc
Spring 2007: Decadal Survey Committee initiating a supplemental study– NPOESS and GOES-R (HES) impacts and mitigation– 3-day workshop in May/June 2007
Decadal Survey Response
Capitalization of NOAA Satellite Systems
NOAA-NASA Research-to-Ops (R2O) collaboration report to Congress
CWG Review April 11-13, 200730
OSTP Action
Excerpts from OSTP communiqué on 2/07/07 in response to the NOAA-NASA Joint Assessment
– “more analysis is needed in terms of possible mitigation options for those impacts (the paper currently focuses only on re-manifesting sensors onto NPOESS but does not look at projected costs or other mitigation strategies)”
– “it is important to begin assessing the potential costs of such strategies (both for the NPOESS-based solutions as well as other possible mitigation options), so that we can more clearly understand the trade-offs of various approaches.”
– “goal is to have enough information available in time to inform the FY2009 budget process. To meet that goal, the analyses outlined above would be most helpful if completed by May 1st.”
CWG Review April 11-13, 200731
Plan
Priority is to avoid or minimize measurement gaps
Estimate costs of sensor procurement and integration– Demanifested sensors only (altimeter, APS, ERBS, OMPS-Limb, TSIS)– Initial estimates: per-sensor basis for flights on NPOESS C2-C4 only
Altimetry flights on different platforms (Joint Assessment recommendation) – NASA GFE approach– NOAA/IPO approach
Estimate costs of Climate Science Support– Per-sensor estimates for all sensors
Certified / Demanifested / Alternatives– Initial estimates cover NPOESS C2-C4 and gap-filler flights
NASA research missions, foreign-supplied raw data Complete life-cycle costs (2008-2026)
– Develop spreadsheet model for initial estimations– Develop a comprehensive computer model in parallel
More refined estimations at a later date– Incorporates sensor expert guidance
NOAA + Co-op institutions
CWG Review April 11-13, 200732
Team Organization
Steering: Mary Kicza and Mike Freilich Leads:
– NOAA: Jeff Privette and Jim O’Neal– NASA: Bryant Cramer and Steve Neeck
Ex Officio: Chet Koblinsky, Tom Karl, Mike Tanner Working Group:
– NOAA Chief Financial Office: Darrell Robertson and Mahendra Shrestha– PEO/SUAG Representative: Mike Bonadonna– Cost Modeling
Consultants: John Bates (NOAA), Dave Young (NASA/Langley & NESDIS HQ) Detailed model development: Bruce Barkstrom (NOAA)
– Sensor Expert Teams TSIS: Rossow (City University of New York [CUNY]), Barkstrom (NOAA) ERBS: Rossow (CUNY), Ackerman (Wisconsin) ALT: Wilson (NOAA), Miller (NOAA) OMPS-Limb: Flynn (NOAA), Ravishankara (NOAA) APS: Murphy (NOAA), Ravishankara (NOAA) CMIS: Janowiak (NOAA), Chang (NOAA), Chelton (Oregon), Arkin (Maryland) CrIMMS: Barnett (NOAA), Goldberg (NOAA) VIIRS: Menzel (NOAA), Reynolds (NOAA), Privette (NOAA) Support: Goldberg (NOAA), Menzel (Wisconsin), Justice (UMD), Weng (JCSDA)
CWG Review April 11-13, 200733
Primary Mitigation Strategy
2008
2010
2015
2020
2025
TSIS
ERBS
Altimeter
OMPS - Limb
(C)MIS & Vector Winds
APS
Mid-AM Imager
Glory
Initially Costed Procurements
Terra(MODIS)
Aqua
Aura
Jason-1
Terra, Aqua
SORCE
FOO
Assumed Flight: Not CostedPotential Flight: Not CostedNPOESS Mitigation Flight: Costed
NPP
Glory
NPP/CERES
OSTM
FOO C3/ERBS
FOO C2 C4
FOO C3
MetOp-A(AVHRR)
C2/MIS C3/MIS
*Jason series is TBD. XOVWM represents scatterometer data from yet unidentified source(s).
• Flights shown in yellow: procurement/integration costs pending NASA study completion (~Apr.20)
• Climate Science Support costs assume all Certified, Mitigated and heritage sensors (all years)
Jason-3* Jason-4* Jason-5*
MetOp-B(AVHRR)
MetOp-C(AVHRR)
XOVWM1* XOVWM2*QuikSCAT XOVWM3*
C4/MIS
C3
CWG Review April 11-13, 200734
DS Response: Approach
Focus on the Observing Requirements behind the recommended solutions (missions)
Place continuity as most important attribute
Exploit existing NOAA Processes– NOAA Observing Systems Architecture (NOSA)– Gap Analysis and Solution Determination
(GASD) Process– PPBES
CWG Review April 11-13, 200735
Gap Analysis and Solution Determination (GASD)
=f(Measurements)SuggestedSolutions
CWG Review April 11-13, 200736
NOAA Program Obs System
PrioritySys Owner
Status LifetimeGeo
CoverageHorzRes
Msmnt Accuracy
Msmnt Refresh
RGA
WW-LFW 1 --- 2009-15 Hemi 12 km 2 m/sec 6 hr ---
DSMP_SSM/I DoD Op 1998-07 Global 55 km 2 m/sec 6 hr
QuikScat_SeaWinds NASA Op 1999-08 Global 25 km 2 m/sec 18 hr
ERS-2_AmiSCAT EU Op 1995-09 Global 50 km 2 m/sec 3 dy
Coriolis_WindSat DoD Op 2003-09 Global 50 km 2 m/sec 34 hr
DMSP_SSM/IS DoD Op 2003-17 Global 55 km 2 m/sec 6 hr
METOP_ASCAT EU Op 2006-20 Global 25 km 2 m/sec 6 hr
NPOESS_CMIS NOAA-DoD Canx 2013-27 Global 20 km 1.0 m/sec 6 hr
NPOESS_MIS NOAA-DoD Con 2013-27 Global 20 km 1.0 m/sec 6 hr
NASA_XOVWM NASA Con 2009-13 Global 2.5 km 2 m/sec 6 hr
GCOM_SeaWinds Japan Plnd 2014-23 Global 25 km
Radarsat-1 CSA Op Global 3.0 m 40 m/sec
CMAN NOAA Op Coastal 1.0 m/sec 0.167 hr
CREWS NOAA Op Coastal 0.2 m/sec
WP-3D NOAA Op Global 1.0 m/sec
Moored Buoys NOAA Op Coastal 1.0 m/sec 0.167 hr
NWLON NOAA Op Coastal 0.3 m/sec 0.1 hr
Drifting Buoys NOAA Op Coastal 466 km 1.5 m/sec 0.001 hr
PORTS NOAA Op Coastal 0.3 m/sec 0.1 hr
RAMAN NOAA Op Meso 0.1 m/sec 0.003 hr
SWMP NOAA Op Coastal 1.0 m/sec 5 sec
TAO NOAA Op Offshore 0.3 m/sec 0.5 sec
Assessing DS Mission Recommendations
In NOAA Context (NOSA)Example:Ocean Winds
CWG Review April 11-13, 200737
SDS Addresses “Climate Central” Recommendation
NOAA, working with the Climate Change Science Program and the international Group on Earth Observations, should create a climate data and information system to meet the challenge of ensuring the production, distribution, and stewardship of high-accuracy climate records from NPOESS and other relevant observational platforms -- DS, p. 3-4
CWG Review April 11-13, 200738
Key Questions
What is NOAA’s role in space observing and related data stewardship in Climate and what are NOAA’s expectations?
What is the current status of NOAA/NASA activities related to Nunn-McCurdy and NRC Decadal Survey?
What role can (should) COA or the Climate Goal play in the satellite observing system?
How are we working to overcome current obstacles to success?
How does the interagency “process” factor into the Climate Goal (including research to operations)?
What are the impediments and solution to developing climate data records?
CWG Review April 11-13, 200739
Key Questions
What is NOAA’s role in space observing and related data stewardship in Climate and what are NOAA’s expectations?– Mission Planning, Project Management (Production, Stewardship)– Requirements: Appropriate funding ramp-up; interagency execution– Contingency planning
What is the current status of NOAA/NASA activities related to Nunn-McCurdy and NRC Decadal Survey?– NOAA’s FY09+ budget request assumes Nunn-McCurdy mitigation– Decadal Survey under consideration vis-à-vis Agency requirements
What role can (should) COA or the Climate Goal play in the satellite observing system?– Mission Planning, Project Management (Production, Stewardship)
How are we working to overcome current obstacles to success?– End-to-end vision (vs. piecemeal), procuring expertise and experience– Strong interaction with NOAA and NASA management
How does the interagency “process” factor into the Climate Goal (including research to operations)?– High level planning: Joint Working Group for Research and Operations– Project level planning: anticipates skills and contributions from outside NOAA
What are the impediments and solution to developing climate data records?– Impediment: Inadequate Funding. Solution: Adequate Funding.
CWG Review April 11-13, 200740
Conclusions
The foundations of operational production of satellite CDRs has begun within NCDC
Prioritization, production, and productivity has been scoped and analogs begun using current data sets
Resource requirements for SDS are now being captured in the NPOESS climate remanifesting exercises
CWG Review April 11-13, 200741
The End
COA Program Review Panel 8: Space Obs. & Stewardship
CWG Review April 11-13, 200742
Back up: Production Subsystems
CWG Review April 11-13, 200743
Production Eng. Considerations
Essential Climate Variables – and the deeper ties to individual parameters and data structures contained in the files that usually contain archived data
Justification and Prioritization – provide the ties between ECVs and the societal benefits as well as scientific issues
Data Sources – the platforms and instruments that provide the Level 0 data, including satellite-based and in-situ sources
Data Set Versions – data collections that have common contents, common time intervals of data collection, common data sources, and homogeneous error structures
Data Flow Diagrams – and the extensions that provide the connectivity between different data sources and data versions
Uncertainty Assessments – which we treat like error budgets, with the added assessment of systematic biases and probability distributions
Production Schedules – based on both data sources and (re-)processing expectations
CWG Review April 11-13, 200744
Brief History of Prioritization
What is the relative “value” of a given data set?
CCSP Prioritization Workshop (June 2006)– Difficulty in balancing satellite measurement priorities with
in-situ priorities – and priorities of different communities– Success constrained by 2-D spreadsheets
Initial Development of a Hypertext Alternative– Hypertext (Web-based) navigation approach provides better
balance between complexity and understandability– Led to a representation showing how Essential Climate
Variables interact with Scientific Questions Societal Benefits
CWG Review April 11-13, 200745
Prioritization - Future Work
Extend Input Opportunities– Creating web site with extensive information on
satellites, instruments, in-situ data sources, and data products
Need Deeper and More Rigorous Approach to Prioritization– Can we quantify the economic value of climate data?– Can we quantify the required “Signal to Noise” for
climate data on a rigorous basis? Rigorous error budgets – and identification of physical basis
for error estimates Objective approaches to weighting influence of different
variables on climate change (e.g. OSSEs)
CWG Review April 11-13, 200746
NPOESS Study: Next Steps
Review options for extending current acquisition strategies – APS, TSIS, CERES/ERBS, OMPS-Limb
Review options for international partnerships
Develop risk assessment using sensor TRL
Define NASA-NOAA roles and responsibilities
Develop climate budget profile for FY2009-2015– Continue to refine costs
OSTP May 1, 2007 delivery
OMB clearance
Terms-of-reference for in-depth study– Refine climate activities, costs, partnerships (incl. foreign)