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MODIS Ocean Data Workshop. Introduction and MODIS History. LaSells Stewart Center. OSU Campus. Valley Library. A Short History. 1983 – NASA began to explore the concept of a polar-orbiting platform to complement a manned polar-orbiting space station

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MODIS Ocean Data Workshop

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Modis ocean data workshop

MODIS Ocean Data Workshop

Introduction and MODIS History


Lasells stewart center

LaSells Stewart Center


Osu campus

OSU Campus


Valley library

Valley Library


A short history

A Short History

  • 1983 – NASA began to explore the concept of a polar-orbiting platform to complement a manned polar-orbiting space station

  • Beginning as System Z, gained momentum with NASA’s proposed “Global Habitability” program

  • After Challenger disaster, polar space station disappeared as did manned servicing requirement

  • System Z became EOS – Earth Observing System

    • Several instrument suites were developed

    • Surface Imaging and Sounding Package (SISP) included the Moderate Resolution Imaging Spectrometer

  • MODIS soon split into 2 concepts

    • MODIS-N focused primarily on land and atmosphere sensing but included some ocean bands

    • MODIS-T (tilting) focused on ocean

  • Because of budget constraints, MODIS-T vanished, replaced by MODIS-N and EOS-Color (to follow SeaWiFS)

  • Further budget reductions led to replacement of EOS-Color by SIMBIOS


Some obscure facts

Some Obscure Facts

  • MODIS was always viewed as the keystone sensor for EOS

  • Three pairs of MODII were planned initially to provide a 15-year time series

  • NOAA was involved for much of the development of EOS

    • Budget constraints and orbit incompatibilities led to eventual decoupling of NASA and NOAA

    • NASA always expected that NOAA would eventually assume responsibility for MODIS-like measurements


Introduction modis ocean data products workshop

INTRODUCTION -MODIS OCEAN DATA PRODUCTS WORKSHOP

Wayne E. Esaias

GSFC

Code 971 - Oceans and Ice Branch

[email protected]

http://modis-ocean.gsfc.nasa.gov

September 4, 2003

Oregon State University


Early eos approach

Early EOS Approach

  • Obtain 15-20 Year Consistent Time Series

  • Upgrade to New Technology

  • Transition Research Mission to Quasi Operational System

    Centralized Data System

    COTS approach

    Active Archive Center (DAAC) System

  • Ongoing Instrument Team Responsibility

    Instrument performance linkages to

    science product performance

  • Transition to a truly operational climate system


Brief modis history

Brief MODIS History

  • Definition Panel 1984

  • Selection of Instrument, Instrument Team - 1989

  • Restructuring - 1992

    • MODIS-T out, PM MODIS-N in (6 MODIS-N’s)

  • Major budget reduction - 1997

    • Addition of team member investigations

    • EOSDIS rescope

    • 6 platforms reduced to 1st 2 - AM-1, PM-1

  • LaunchTerra 12/1999

  • Launch Aqua 5/2002

  • Re-compete in mid 2003


Modis ocean data workshop

Instrument Overview

  • The MODerate Resolution Imaging Spectroradiometer (MODIS), one of the key instruments for NASA’s Earth Observing System (EOS), was built by Raytheon Santa Barbara Remote Sensing (SBRS)

  • MODIS ProtoFlight Model (PFM) was launched on board Terra spacecraft on 12/18/99 (first light on 02/24/00).

    • http://terra.nasa.gov/

  • MODIS Flight Model 1 (FM1) on Aqua spacecraft was launched on 05/04/02 (first light on 06/24/02)

    • http://eos-pm.gsfc.nasa.gov/

  • 20 Reflective Solar Bands (RSB): 0.4 - 2.2 microns

  • 16 Thermal Emissive Bands (TEB) 3.5 - 14.5 microns

Page 10


Modis ocean data workshop

MODIS Chronology

MODIS Instrument Panel formed - 1984

Instrument Panel Report (MODIS N & T) – 1986

Phase-B Studies (N & T) complete – 1989

MODIS Science Team selected - 1989

MODIS-T CDR - 1990

MODIS-N Contract Award to SBRC – 1991

EOS program restructured - 1992

EOSDIS restructured - 1996

Protoflight Model shipped – 1997

EOS Terra launched – 12/18/99

EOS Aqua launched 05/04/2002

Page 11


Modis ocean data workshop

MODIS Instrument

DefinitionTeam

  • * Wayne Esaias (Chairman) NASA Hq.

  • * William Barnes (Secretary) NASA/GSFC

  • * Mark Abbott Scripps/JPL.

  • Steve Cox Colorado St. Univ.

  • * Robert Evans Univ. Miami

  • Robert Fraser NASA/GSFC

  • Alexander Goetz NASA/JPL

  • * Howard Gordon (Ex-officio) Univ. Miami

  • * Christopher Justice Univ. Maryland

  • E. Paul McClain NOAA

  • Marvin Maxwell NASA/GSFC

  • Robert Murphy NASA Hq.

  • Joseph Prospero Univ. Miami

  • Barrett Rock NASA/JPL

  • * Steven Running Univ. Montana

  • Raymond Smith Univ. Cal. Santa Barbara

  • Jerry Solomon NASA/JPL

  • Michael Spanner (Ex-officio) NASA/ARC

  • Joel Susskind NASA/GSFC

  • * MODIS Science Team Members (1989 - Present)


Modis ocean data workshop

MODIS Science Team

ATMOSPHERES

Michael King (group leader) NASA/GSFC

Bo-Cai Gao NASA/GSFC

Yoram Kaufman NASA/GSFC

Paul Menzel NOAA/Univ. Wisconsin

Didier Tanre Univ. Lille/France

LAND

Christopher Justice (group leader) Univ. Maryland

Alfredo Huete Univ. Arizona

Jan-Peter Muller Univ. London/UK

Ranga Myneni (1997) Boston Univ.

Vincent Salomonson (team leader) NASA/GSFC

Steven Running Univ. Montana

Alan Strahler Boston Univ.

John Townshend (1997) Univ. Maryland

Eric Vermote (1997) NASA/GSFC

Zhengming Wan Univ. Cal. Santa Barbara

OCEANS

Wayne Esaias (group leader) NASA/GSFC

Mark Abbott Oregon State Univ.

Ian Barton CSIRO/ Australia

Otis Brown Univ. Miami

Janet Campbell (1997) Univ. New Hampshire

Kendall Carder Univ. South Florida

Dennis Clark NOAA/NESDIS

Robert Evans Univ. Miami

Howard Gordon Univ. Miami

Frank Hoge NASA/GSFC

John Parslow CSIRO/Australia

CALIBRATION

Phillip Slater (group leader) Univ. Arizona

Kurt Thome (group leader 1999-present)Univ. Arizona

William Barnes NASA/GSFC


Modis ocean data workshop

MODIS-T Phase B


Modis ocean data workshop

MODIS-N Phase B


Modis ocean data workshop

MODIS SPECIFICATIONS


Modis ocean data workshop

MODIS Scan Cavity and OBCs

Page 19


Modis ocean data workshop

VIIRS vs. MODIS: Size, Power

MODIS

2 m3/230 kg/147 W

VIIRS

<1.2 m3/250 kg/200 W

129 cm

118 cm

107 cm

65 cm

164 cm

138 cm

92-10-175


Modis ocean science team team members and associate team members

MODIS Ocean Science TeamTeam Members and Associate Team Members

Mark Abbott Oregon State University

Barney Balch Bigelow

Otis Brown University of Miami

Dennis.K.Clark NOAA/NESDIS

Janet Campbell University of New Hampshire

Ken Carder University of South Florida

Wayne Esaias NASA

Robert Evans University of Miami

Howard Gordon University of Miami

Frank Hoge NASA

Kay KilpatrickUniversity of Miami

Ed Kearns University of Miami

Ricardo Letelier Oregon State University

Peter Minnett University of Miami

Ken Voss University of Miami


Modis ocean science team support

MODIS Ocean Science TeamSupport

Jasmine Nahorniak Oregon State University

Bruce Bowler Bigelow

Mark Yarborough Moss Landing

Tim Moore University of New Hampshire

Bob Chen University of South Florida

Sue Walsh University of Miami

Jim BrownUniversity of Miami

Warner BehringerUniversity of Miami

Kevin Turpie GSFC, SAIC

Ron Vogel (MODAPS)GSFC, SAIC

Donna ThomasGSFC, SAIC

Aumber BhattiGSFC, SAIC

Bob Woodward (SDST)GSFC, SAIC


Modis ocean data workshop

TERRA MODIS NIGHTTIME 4mm SST

MAY 2001

V 3.3.1

-2 5 10 15 20 25 30 35

Co

MODIS/OCEAN GROUP

GSFC, RSMAS


Modis ocean data workshop

EOS MODIS SUCCESS CRITERIA

Develop improved calibration and science products

Process and reprocess the data to make it available for

6+ year mission life

Distribute products and tools to the science and operational communities.

Improve understanding of how to best implement operational transitions of a national climate time series

There are many lessons learned from MODIS

Assemble feedback from science community


Modis ocean products

MODIS Ocean Products

  • MODIS Instruments:

    • Terra (1030 morning),

    • Aqua (1330 afternoon)

  • 40 products:

    • 4 SST,

    • 36 Ocean Color

  • Resolution:

    • Spatial:

      • Level 2 - 1km, ~2000km x 2000km;

      • Level 3 - 4km, 39 km, 1 deg [all products are global]

    • Temporal Resolution:

      • Level 2 - 5 minute granule;

      • Level 3 - daily, 8 day week, monthly, yearly


Modis ocean data products

MODIS Ocean data products

  • There are 86 ocean parameters available in over 100 categories of MODIS Ocean data types archived by (and may be obtained from) the NASA Goddard Distributed Active Archive Center.

  • The three basic groupings of MODIS ocean data parameters are:

    • ocean color

    • sea surface temperature

    • ocean primary production

  • Ocean Parameter categories:

    • 36 Ocean Color parameters

    • 4 Sea Surface Temperature parameters

    • 8 Primary Productivity parameters

      • (including 2 Primary Production indices)

    • 38 Quality Control parameters.


Processing levels

Processing levels

Ocean color and sea surface temperature are available at a variety of processing levels:

  • Level 1 - Unprocessed top of the atmosphere radiance/reflectance

    • At 1-km spatial resolution

    • 5 minute granule time resolution

  • Level 2 swath data

    • At 1-km spatial resolution

    • 5 minute granule time resolution

  • Level 3 global binned or mapped data

    • spatial resolutions of 4.63km, 39km, or 1 degree

    • Time resolutions of one day, 8 days, a month or a year.

    • The binned data products use an integerized sinusoidal equal area grid (ISEAG). The mapped products use a Cylindrical Equidistant Projection.


Modis ocean data workshop

OPP stat model (opp_hv)

OPP s.a. model (opp_wk)

L2 Sat 1 km

OPP mapping (opp_map)

ISEAG 4.63 km

Time binning (mtbin)

CED 4.88 km

L3 binning (mspc/mmap)

CED 39 km

L2→L3 binning (msbin)

CED 1o

DATA BINNING PATHWAYS

Ocean Color & SST

Ocean Primary Productivity

YEARLY

PGE74

L3

L3

L3

L3

L4

L4

L4

L4

L4

PGE52

MONTHLY

PGE73

L3

L3

L3

L3

8-DAY

PGE54

L3

L3

L3

L3

L4

L4

L4

L4

PGE51

DAILY

PGE20

L3

L3

L3

L3

L2

Binned Maps

1 km 4.6 km 4.9km 39km 1° =111 km

Swath ISEAG Linear Linear Linear


Level 4 productivity

Level 4 Productivity

  • Ocean primary production data is available only as binned or mapped Level 4 (i.e. L4) data.

  • Ocean Productivity outputs are averaged weekly or yearly. Like the L3 data, the L4 data is organized spatially as either 4km ISEAG gridded bins or as maps using a Cylindrical Equidistant Projection. The mapped data products are available in a choice of 4km , 39km, or 1 degree spatial resolutions. More than one model is used for deriving these data products and some quality statistics are available.


Where to get data and more information

Where to get data and more information

Information locations:

MODIS Oceans home page

  • http://modis-ocean.gsfc.nasa.gov

    MODIS Oceans QA Browse 36km Imagery (MQABI)

  • http://mqabi.gsfc.nasa.gov

  • Select Terra collection 4 or Aqua Collection 3

    Useful links to documentation and related web pages

  • http://modis-ocean.gsfc.nasa.gov/doclinks.html

    Data Ordering locations:

    NASA GES DAAC WHOM (NASA - Goddard DAAC)

    http://daac.gsfc.nasa.gov/

    Select Ocean color ->MODIS->ocean

    EOS DATA GATEWAY EDG

    - http://modis.gsfc.nasa.gov/data/ordering.html


Modis ocean data workshop

Team, Quality Assurance, Processing, and User data access relationship


Modis ocean data workshop

Backups


Modis ocean data workshop

Terra - Daytime Descending Orbits


Modis ocean data workshop

Aqua - Daytime Ascending Orbits


Modis ocean data workshop

8 Day

(Weekly)

Composites

Terra

Aqua


Modis ocean data workshop

Development,characterization, and performance of the EOS MODIS sensors

W. Barnes, X. Xiong, B. Guenther and V. SalomonsonNASA/GSFC Greenbelt, MD 20771SPIE/Earth Observing Systems VIIIAugust 3-6, 2003San Diego, CA


Modis ocean data workshop

VIIRS: Heritage in Key Components

Full-aperture Calibrators:

Angular Momentum

Compensator (SeaWiFs)

Reflective

Spectralon

Solar Diffuser

(MODIS

TRMM-VIRS)

Emissive

V-Groove

Blackbody

(MODIS Design)

Diamond-turned Postpolished

All-reflective Optics:

  • Rotating Telescope (SeaWiFS) (less stray light vs. MODIS)

    3-mirror Anastigmat

  • Aft Optics

    4-mirror Anastigmat

Passive Flat-panel

Radiative Cooler

(Raytheon IR&D)

Stand-alone Electronics Module

  • Reliable, redundant design

  • Reprogrammable in flight

Scan Control

  • MODIS & SeaWiFs

    Based Optical Encoders

  • <30 µrad Uncertainty

High-performance

2nd-generation

Focal Planes


Modis ocean data workshop

VIIRS RTA


Modis ocean data workshop

VIIRS Optics


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