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WELCOME TO SURFACE BIOLOGY AND GEOLOGY STUDY



In 2018, NASA initiated a new study for the Surface Biology and Geology (SBG)
Designated Observable, identified in the 2018 National Academies’ Decadal Survey
entitled, “Thriving on Our Changing Planet:  A Decadal Strategy for Earth
Observation from Space.” 

The Decadal Survey presented a clear direction on SBG Observing priorities:

 * Terrestrial vegetation physiology, functional traits, and health
 * Inland and coastal aquatic ecosystems physiology, functional traits, and
   health
 * Snow and ice accumulation, melting, and albedo
 * Active surface changes (eruptions, landslides, evolving landscapes, hazard
   risks)
 * Effects of changing land use on surface energy, water, momentum, and C fluxes
 * Managing agriculture, natural habitats, water use/quality, and
   urban development

The SBG Study has three objectives:

 1. Identify and characterize a diverse set of high value SBG observing
    architectures
 2. Assess the performance and cost effectiveness of architectures against SBG
    research and applications objectives
 3. Perform sufficient in-depth design of one or more candidate architectures to
    enable near-term science return

The study integrates inputs from four Research & Applications open-invitation
working groups: Applications, Algorithms, Modeling and Calibration /
Validation. A parallel team is envisioning and analyzing candidate architectures
for implementing observing system concepts as well as exploring capabilities
from the program of record and recent opportunities.  

The study ended its first phase with more than sixty potential architecture
configurations ranging from very large multi-sensor platforms to constellations
of smallsats, each intended to meet the science and applications objectives in
the SBG Science and Applications Traceability Matrix (SATM), developed by the
study team from the 2018 Decadal Strategy document, as vetted by the community
in 2019. 

In Phase 2, each of these options is being evaluated; instrument characteristics
(optical performance, mass, volume, power, data rate) are being refined, cost
estimates are being developed, and potential partnerships with commercial and
international organization are being explored.

SBG overall assessment will include:

 * Science and Applications Traceability Matrices (SATM): ESAS and HyspIRI
   provide well-defined observables and products
 * SATM Science Objectives, required capabilities and applications are traceable
   and provide performance criteria in the Value Framework
 * Value Framework will assess each candidate architecture by performance, cost
   and risk value criteria
 * A small number of selected architectures from the Value Framework will then
   be further developed in preparation to support a Mission Concept Review (MCR)
   in Phases 3 and 4



 

 


News Slides from the 8th SBG Community Webinar focused on Applications Available
Jun 27, 2022 Slides from the 7th SBG Community Webinar Available Feb 18, 2022
SBG Application User Needs Survey Oct 20, 2021 Requests for Information (RFIs)
for SBG Instruments posted on SAM.gov Jul 21, 2021 Call for Abstracts (Due 16
March 2021) for the Optical Society’s (OSA) 2021 Hyperspectral Imaging and
Sounding of the Environment (HISE) Mar 06, 2021 More news…
Upcoming Events Register now for the SBG Community Workshop (Oct 12-14 2022) Oct
12, 2022 - Oct 14, 2022 — Washington DC Area Upcoming events…
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