.

MOI)IS-T Science Calibration/Characterization Planedited by MCST

(MODIS Characterizaaon Suppon T-)

John Btier (925.0)Peter Abel (920. 1)Bill Barnes(925.0)Ken Brown (925.0)

Bill Eichhom (717.3)\vayne EWaS (67 1.0)

Bruce Guentier (973.0)Forrest Htil (924.0)

Jomn Hamden (925.0)Sm Hetienngton (717.3)

‘{orarn Kautman (613.0)\lichael King (913.0)

anan Markham (9’2~Hmev OSUOW (925-~),.

Steve Unger (923i@4:*~j>YN“ASA Goddard Space Rigk .~a~r”

Greenbelt. klD ?077i~,,

Vern Vanderbilt

.Ames Resmch CcnIer\lo[fett Field. C.\ 94035

:..:..-.

Mji Ardanuv‘bid Gciler““DOUg HoytShe\[ev pe~o~

Researcn and Data Systems CorporationGreen be it. \4D 20770

Hugh KiefferU. S. Geological Sumev

Fi2gsI.a!f. AZ

.+Uredo Huete?h!l Slater

Unlversltv ot ArizonaTucson, W S572 I

MODIS Science Team Meeting, Oct. 1 - 3, 1991. Attachment NN

TABLE OF CONTENTS

I hduction1.1 Overview1.2 Scien= CalibaodCh~ttimaon Objectives1.3 Organi=aons and Responsibilities

Schedules

4

.,’1.4 ......;“

z ~.Launch mbmtion/Chmctti=tion Me~odology

......... ..,..,....,.,.,

2.1 Objwuves~tion~e2.2 Radiomernc Calibration2.2.1 Abwiute calibration2.2.2 Relative calibranodtest of cross-correlation of instruments

Geomernc Calibration:~

2.3Speed Calibration

..;j;p

~.4‘:$ +>

“*$*?

3 Ln-Orbit Radiomernc CalibraaodCharacterizauon Methodology \“F.:3b..:.>.:,:,....:.,>,:~,

3.1 Objatives~ationale,.Y

32 hstrument-Basd Calibration3.2.1 Internal Sources3.2.2 External Soiar

3.2.3 External Lunar ..:,,,+.>.\

Instrument Cross-Comptison....,.,.,,...:.,,,

3.3 ‘2$i?$~~$B*3.3.1 Cross-SensorNitMn Platform

‘:ii>..+g$

3.3.3.:*

3.4 Target-Basal Calibration3.4.1 Target RelatWGround Reflecmce3.4.2 Bio-Opticd oceans ...,

Image-Relatd:.....>..,....... .......

3.53.5.1 External ImageK~a&-R,@ornernc Rectilcation3.5.2 Class-S~cificS@a~Eqtimuon

References3.6 “,:.....,.

4 In-Orbit Geomernc ~ibration (?)

5 In-Orbit Spectral Calibration (Instrument Based).:i:,’.%.............y,~,

6 Offlcia.1MODIS-T~&T@~tion Algorithm6.1 Obj~ti@e6.2 Algorith**#ti~/S emulation Studies.....

7 Definitions and Referenus7.1 Data Diction~/Gloss~7.2 Acron~s7.3 Additiond References

. .

MODIS-TScienceCalibtiW_tition P~page 2

J.Barker (NAS~GSXf125) & S.Pemy (RK)

Vasion0.9

3:13 PM M=* 23”1*1

1 Introduction

1.1

1.1

1.1

1.1.

Overview

This document is intended to provide a complete and tiorough presentation of the pre-launch and in-orbit radiomernc, geomernc, and spectral cdihaodchmac~ri. ,,,&Qoneffortsdesigned for the MODIS-T instrument. As such, this document dewrib ,:,:’ lndividu~

%

efforts of the Engineering team (Code 700), specific science tem memb.:”” :.”~ted on titlepage), artd the MCST to calibrate and characterize the insuument. ~~ ““’:’..$,:~~

:::::,.>,..,

,1 Audience(1) MODIS Science Management(2) MODIS Science Team(3) EOS Project Management ,>:,

(4) EOS Project Science Office‘::Y,,,i,i,.

,:.::,>,..’i,,j:,*(5) EOS Calibration Advisory Panel ::$~@

“~~>&,.:..:>,,2 Scope \;,.::

C/~apfer 1 discusses the purpose and outline of this document. It includes (1) a briefdescription of the MODIS-T instrument and provides art overview of the science goais andhow the MSCT calibration/charactenzation objectives fit into these goals; (2) defines the -various organizations and personnel associat~@tii~h,~MODIS-T calibration effort andtheir responsibilities and interrelationships; an&~3.~@$ides schedules for the variety ofprelaunch and in-orbit activities associated witi th&~braaon/characterization effort.

..:,:;\:,.

Chapter 2 describes the pre-launch radiomernc, spectral, and geomernc calibmtion andcharacterization of the MODIS-T instrument. This section summarizes the Calibration Planprovided by the Engineering team (Code 700)....,:~.::w.::,:::.,;,::,.:..:,.,.,..,,C}zapfer 3 provides a listing.,o”f different in-orbit radiomernc calibration methods forconverting on- board DN to eithen:radititice or reflecmnce. It includes the background,description, justification, and alg~tijhm development of the instrument based methods(internal sources. ‘xtemal soiar, and externai lunar), the instrument cross-comparisonmethods (cross se. l~r/within platform, cross-platfom in orbit, and target related/aircraft),the target-based metiods (target related/ground reflectance and bio-optical oceans), and theimage relatd methods (radiomernc rectification and class-spectilc scene equalization).

: