# Presentation: 163364

## EO-1 Science Validation Evolution

***EO-1 Science Validation Evolution***

***Initial Concept***
*ALI including MS/PAN, the WIS, and the GIS*
*AC *
***De-scope***
*ALI (MS/PAN)*
*AC *
***Re-scope***
*ALI (MS/PAN)*
*Hyperion (GIS)*
*AC *

## Initial Concept

***Initial Concept***

***Validate MS/PAN and WIS for Landsat-follow-on and other future Mission To Planet Earth (MTPE) missions***
***Validate “new ways of doing business” visa-vi formation flying and calibration***
***Use GIS to evaluate “spectral purity” of WIS***
***Assess impact of applying AC-generated atmospheric corrections to contemporaneously obtained (within 1 minute) Landsat 7 ETM+ data***

## Descope

***Descope***

***Validate MS/PAN for Landsat-follow-on and other future MTPE missions***
***Validate “new ways of doing business” visa-vi formation flying and calibration***
***Assess impact of applying AC-generated atmospheric corrections to contemporaneously obtained (within 1 minute) Landsat 7 ETM+ data***

## Rescope

***Rescope***

***Validate MS/PAN and Hyperion for Landsat-follow-on and other future MTPE missions***
***Validate “new ways of doing business” visa-vi formation flying and calibration***
***Evaluate utility of hyperspectral data for meeting needs of Earth Science Enterprises (ESE) community by addressing Lewis science mission objectives with Hyperion ***
***Assess impact of AC-generated atmospheric corrections on Landsat 7 ETM+ data***

## EO-1 Coordinated Image

***Collection Opportunities***

**  Excludes thermal channel*

## The ALI is a specific response to the Land Remote Sensing Policy Act wherein NASA is charged with ensuring Landsat data continuity through the use of advanced technology
EO-1 will provide at least 200 paired scene comparisons with Landsat 7
EO-1 flies within 1 minute of Landsat over the same ground track ± 3 km
Provision to collect up to 1,000 paired scenes
Continuous atmospheric correction available
Paired scene comparisons evaluated by experienced land imaging scientists in association with the Landsat Science Working Group

***ALI Flight Validation***

***The ALI is a specific response to the Land Remote Sensing Policy Act wherein NASA is charged with ensuring Landsat data continuity through the use of advanced technology***
***EO-1 will provide at least 200 paired scene comparisons with Landsat 7***
*EO-1 flies within 1 minute of Landsat over the same ground track ± 3 km*
*Provision to collect up to 1,000 paired scenes*
*Continuous atmospheric correction available*
*Paired scene comparisons evaluated by experienced land imaging scientists in association with the Landsat Science Working Group*

## The Hyperion is a specific response to address the  science and technology goals of the ill-fated Lewis mission
EO-1 will provide 7.5 km x 19.8 km x 220 band of spectral imaging data “hyper-cubes”
Hyperion is co-aligned with the innermost  MS/Pan SCA on the ALI MS/Pan Module
Provision to collect up to 6,000 hyper-cubes with matching ALI MS/Pan and selected Landsat 7 data
Continuous atmospheric correction available
Paired scene comparisons evaluated by experienced land imaging scientists in association with the Landsat and AM-1 Science Working Groups

***Hyperion Flight Validation***

***The Hyperion is a specific response to address the  science and technology goals of the ill-fated Lewis mission***
***EO-1 will provide 7.5 km x 19.8 km x 220 band of spectral imaging data “hyper-cubes”***
*Hyperion is co-aligned with the innermost  MS/Pan SCA on the ALI MS/Pan Module*
*Provision to collect up to 6,000 hyper-cubes with matching ALI MS/Pan and selected Landsat 7 data*
*Continuous atmospheric correction available*
*Paired scene comparisons evaluated by experienced land imaging scientists in association with the Landsat and AM-1 Science Working Groups*

## EO-1 Mission Overview

***EO-1 Mission Overview***

***	******	******Primary Participants***
***Mission Components***
*ALI (MS/Pan):**	**NASA Research Announcement (NRA) Investigators*
*Hyperion:**	**NRA, DOD, commercial*
*Atmospheric Corrector:**	**NRA, L-7, commercial*
*Technologies:**	**IPDT*
***Mission Phases***
*Launch to L+2 months:**	**Spacecraft Team, MIT/LL, TRW*
*L+ 2 to L+12 months:**	**NRA*
*Extended Operations (not funded):**	**DoD, Commercial*

## Science Validation Activities

***Science Validation Activities***

***Validate the ability of the ALI to produce calibrated multispectral images of the Earth’s surface.***
***Evaluate Hyperion imaging spectrometer system performance for representative operating conditions and target environments.***
***Determine the potential for improving land surface identification by applying AC atmospheric water vapor corrections to Landsat-7 ETM+ observations. ***

## Hyperion System Performance

***Hyperion System Performance***

***Evaluate sensor characteristics for calibration, repeatability and impact of atmospheric conditions ***
***Cross correlate with other EO-1 instruments and ETM+  ***
***Investigate utility of high spectral and spatial Hyperion data in enhancing data from EOS/AM-1 instruments  ***
***Demonstrate the applications of space-based imaging spectroscopy in landcover use and change analysis for both land mass and coastal regions  ***

## Sensor Performance Validation Topics

***Sensor Performance Validation Topics***

***Cross-calibration with other EOS instruments (e.g., MODIS, ETM+)***
***Characterize and analyze radiometric calibration***
***Efficacy of different calibration modes during the first year of orbit***
***Compare results of well characterized sites on Earth (vicarious calibration) with known or stable reflectance characteristics and well-determined atmospheric states***
***Derive ETM+ equivalent integrated spectral reflectance (band radiances) from the hyperspectral instrument and compare against Landsat spectral reflectance of ETM+***
***Algorithm intercomparison studies***
***Theoretical measurement accuracy and validation measurements***
***Multiple or time series satellite algorithm development***
***Uncertainty analysis using basic physical and system equations***
***Physical process measurement validation***
***Landsat precursor operational satellite sensor validation***

## Sensor Performance Validation Topics(Continued)

***Sensor Performance Validation Topics****(Continued)*

***Development of advanced physical-statistical validation methodology***
***Model impact analysis of remote sensing measurement errors***
***Establishment of statistical criteria for accuracy with multiple satellite sensors, orbits, observation times, and spectral coverages***
***Removal of satellite data artifacts and post-observation recalibration***
***Real-time calculation of direct broadcast data products and uncertainties***
***Alignment of detector/array alignment studies***
***Modulation transfer function (MTF) changes over time***
***Solar diffuser stability***
***Measure statistical response of MS/Pan and AC vs.. Landsat-7 ETM+***
***Intersatellite calibration***

## Hyperion Science Application Topics

***Hyperion Science Application Topics***

***Produce Landsat-type products, e.g., spectral vegetation indices, closed/sparse canopy, thematic maps (urban studies), snow and land cover/land use change, land surface temperature (day/night), fire, thermal anomalies and burn scars***
***Assess the capability of MS/Pan to meet the needs of Landsat user community***
***Assess capabilities of MS/Pan and hyperspectral over the growing season to evaluate seasonal variations***
***Extract biophysical properties, e.g., fraction absorbed photosynthetically-active radiation (FPAR), leaf area index (LAI), and net primary production (NPP)***
***Study bi-directional reflectance distribution function (BRDF) and surface reflectance products***
***Determine surface spectral bi-directional reflectance corrected for atmosphere***
***Conduct regional field studies, field data campaigns***

## Mission Planning Overview

***Mission Planning Overview***

***Coordinating Committee***
*Representatives from Science Working Group, Commercial Sector and Department of Defense*
*Adjudicates acquisition policy/priorities*
***Mission Planning Office***
*Implements mission planning activities*
*Serves as sole acquisition input to the FOT*
*Staffed by Mission Science Planning Office*

## Data Processing / Distribution

***Data Processing / Distribution***

***Science Validation Facility***
*Distributes**** all ****level-0 data to selected NRA Science Validation  investigators*
*Produces MS/Pan Cal Pipeline data on demand*
*Provides in-house validation/analysis capability*
***NASA Stennis***
*Provides ****all**** Hyperion processing *
*Distributes Hyperion Level-0 data to all Commercial and DOD interests*
*Distributes processed Hyperion data to SVF, as well as Commercial and DOD interests        *

## Backup Slides

## SAC-C Science Synergy

***SAC-C Science Synergy***

***December launch accommodates inclusion of Swedish Magnetometer Mapping Payload***
***EO-1 and SAC-C will cooperate as follows to promote NASA/Argentine research initiative***
*Collaborative research opportunities in remote sensing applications involving land use, atmospheric composition, and wet land habitats*
*Cooperative surface measurement program in Argentina, including the installation of Aeronet photometer stations for continuous monitoring of atmospheric aerosols*
*NASA to provide Landsat 7 / EO-1 land imaging in support of the above tasks*
*Argentine participation in the EO-1 NRA*

## Hyperion Performance Model Predictions

***Hyperion Performance Model Predictions***
*(30% Reflectance, 60° Solar Zenith Angle)*

## Science Validation Facility (SVF)

***Science Validation Facility (SVF)***

***Serves as the EO-1 Mission Science Office (MSO) validation analysis and investigator distribution center***
***Physically part of the GSFC Landsat-7 Project Science Office (LSPO) Image Assessment System (IAS)***
***Specifically will provide data distribution and ALI level 1 processing to NRA science investigators***