documents on eoc web page · mar. 1-3, 2004 adeos-ii pi workshop 2004 1 documents on eoc web page...

ADEOS-II PI Workshop 2004 1Mar. 1-3, 2004

Documents on EOC web page

JAXA/EOCJunichi Inoue


Outline

• Introduction of GLI web• Inspection Criteria


GLI web

• GLI web starts from EOC top page;

http://www.eoc.jaxa.jp/homepage.html


Outline


Outline

Outline of ADEOS-II including products

Product Format Description (L1/Higher)

Introduction of GLI L1 product

Link to GLI calibration page (EORC)


ADEOS-II Data Users Handbook

IntroductionOverview of ADEOS-II satelliteOverview of ADEOS-II ground systemDefinition of mission operation phaseList of ADEOS-II standard productsEOIS data services


ADEOS-II GLI Level-1 ProductFormat Description

Outline of HDFDescription of Level-1ADescription of Level-1BDescription of Level-1B Map


Introduction of GLI L1 productOutline of GLI sensor and orbitOutline of GLI products (scene definition,

file name definition, observation mode)Information related to Level-1 format (Outline of file contents, how to calculate radiance value from DN, flag structure of each pixel)Radiometric calibration information (saturation, over-saturation, stripe noise, MTIR electrical noise, etc.)Geometric calibration information

(absolute position accuracy, registration between channels, notice to GPSR anomaly, etc.)


Outline

GLI Response Function

Solar irradiance values

vicarious calibration coefficients

RGB browse collected in EORC

This page is maintained by GLI CAL team


Sample of GLI RGB Browse


Outline of Data Quality Inspection

Automatic check (for all scenes)missing data checkrange checkcontinuity checkvariation check

No output data (lack of entire pixels, impossibility of processing, etc.)Internal use only

No Data

Level 1： <Not used>Higher： large number of errors found

Internal use only

Poor

Level 1： Some errors or large number of errors foundHigher： Some errors found

PublicFair

No error or slight errors foundPublicGood

CriteriaAvailabilityQuality Level

Data quality inspection of GLI ground system

Operator check (for sampled scenes)image quality checkgeometric accuracy check


Data Quality Criteria (1/5)

> 2000 packets－> 10 packets≦10 packetsMissing Packet (Calibration Image Data) (1km)

> 200 packets－> 10 packets≦10 packetsMissing Packet (PCD Data) (1km)

> 1000 packets－> 10 packets≦10 packetsMissing Packet (Image Correction Data) (1km)

Limit values depend on PCD items

Exceed error limits

－Exceed caution limits

Within caution limits

PCD engineering data/Image correction data limit check

1scan> 20000 lines－> 48 lines≦ 48 linesMissing Lines (250m)

> 2000 frames－> 10 frames≦10 framesMissing Frames (Image Correction Data) (250m)

> 200 frames－> 10 frames≦10 framesMissing Frames (PCD Data) (250m)

> 20000 frames－> 10 frames≦10 framesMissing Frames (Calibration Image Data) (250m)

> 1600000 frames－> 10 frames≦10 framesMissing Frames (Earth Observation Image Data) (250m)

1scan> 2000 lines－> 12 lines≦ 12 linesMissing Lines (1km)

MDR anomaly causes several packets loss

> 16000 packets－> 10 packets≦10 packetsMissing Packet (Earth Observation Image Data) (1km)

NPFGNotes

CriteriaItems

Following criteria is defined to reprocessing product.



By sampling visual inspection

－≧4km< 4kmGeometric Accuracy

－－

Exceed moon light’s

limit of deep space data

－Moon light effect

－－Appear mode transition in 1 scene

－Mode Transition

－－Appear tilt transition in 1 scene

－Tilt Transition

TT/NT errorOrbit data error

－－－GPS anomaly

Discontinuity of ST－－－Level 0 data error

< 9 scans－－－Shortage of scan

Level 0 data not found－－－No Level 0 Data

Limit values depend on PCD items

－－Exceed limitsWithin limits

PCD engineering data/Image correction data continuity/variation check

NPFGNotes

CriteriaItems



Sample of missing packets (10 packets, MTIR)

Japan IslandJapan Island

Missing Missing PacketsPackets



R=successful processed pixels/snow pixels

No valid input data

No snow pixels0% ≦ R < 50%50% ≦ R ≦

100%

Cryosphere: Performance of processing

R=successful processed pixels/all land pixels including ocean pixels over ±40deg. latitude

No valid input data or No valid

output dataR = 00% < R ≦ 20%20% < R ≦ 100%

Land algorithms except LTSKG, LTK10D: Performance of processing

Abnormal end－－Process normal end LTSK10D

Input line number is equal or

smaller than 120 (10scans)

－Matched GCP No. equals 0

Matched GCP No. equals 1 or larger

LTSKG: GCP matching performance

－－Used climatology

dataUsed objective analysis data

Lack of meteorological data

R1=successful processed pixels except cloud/land/missing pixels/all output pixelsR2=valid input pixels／all input pixels

No valid input data

－0% ≦ R1 ≦ 30%

and R2 > 030% ＜ R1 ≦ 100%

Ocean: Performance of processing

R=successful processed pixels/all clear pixels on the sea

No valid input data

0% ≦ R < 30%Or no clear pixels on

the sea30% ≦ R < 60%60% ≦ R ≦ 100%

ATSK5: :Performance of processing

R=successful processed pixels/all pixels

No valid input data

0% ≦ R < 30%Or no cloud pixels

30% ≦ R < 60%60% ≦ R ≦ 100%ATSK3_p, ATSK3_r, ATSK3_e:Performance of processing

R=successful detected pixels/all pixelsNo valid input

data0% ≦ R < 30%30% ≦ R < 60%60% ≦ R ≦ 100%

ATSK1: Performance of cloud detection

NPFGNotes

CriteriaItems



No valid input data

Bin No. of snow pixels is 0

Some of input files’ quality are not “G”

All input files’quality = “G”

Cryosphere

R=successful processed pixels/all land pixels including ocean pixels over ±40deg. latitude

successful processed

pixels=0 or No valid input data

R = 00% < R ≦ 20%20% < R ≦ 100%Land

R1=successful processed pixels except cloud/land/missing pixels/all output pixelsR2=valid input pixels／all input pixels

No valid input data

R2 = 00% ≦ R1 ≦ 30%

and R2 > 030% ＜ R1 ≦

100%Ocean

R= ratio of quality “G”files to all input files

No valid input data

R < 30%30% ≦ R1 < 60%60% ≦ RAtmosphere

NPFGNotes

CriteriaItems


Summary

Introduced GLI web siteIntroduced notice of GLI Level-1 productIntroduced data quality inspection criteria

Please access EOC/EORC web site and use Please access EOC/EORC web site and use GLI products !GLI products !