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1- NIES GOSAT PROJECT NEWSLETTER ISSUE#21 SEPTEMBER 2011 Seeing the Satellite Up Close For the First Time In-March-2008,-I-had-an-opportunity- to-visit-"IBUKI"-(GOSAT)-still-being-assembled-at- the-Tsukuba-Space-Center-of-Japan-Aerospace- Exploration-Agency,-with-my-fellow-GOSAT- Science-Team-members.-"IBUKI"-is-a-mid-sized- satellite-focusing-solely-on-one-mission,-but- seeing-a-working-satellite-in-person-for-the- first-time,-I-was-overwhelmed-by-its-size-and- sophistication.-There-were-some-parts-that- looked-roughly-built,-but-I-was-explained-that-this- was-made-that-way-so-it-flies-in-the-zero-gravity- condition,-and-I-remember-being-convinced-and- impressed.-When-the-Soviet-Union-shocked-the- world-by-launching-the-satellite-Sputnik-for-the- first-time-in-human-history,-I-was-in-the-fourth- grade.-Back-then,-I-was-just-a-boy-living-in-the- countryside-of-Shimane-Prefecture-in-Japan.- I-never-imagined-that-satellites-would-evolve- this-much-or-that-they-would-be-the-cutting- edge-technology-for-earth-observation,-or-not-to- mention-that-I-would-be-involved-in-the-satellite- observation.- Getting Involved in GOSAT Project I-studied-meteorology-as-my-graduate-study- at-Tohoku-University,-and-stepped-into-the-world- of-scientific-research.-I-was-doing-research-on- how-the-gases-in-the-atmosphere-absorb-light.- This-is-an-elementary-topic-in-meteorology,-so- when-I-got-a-researching-position-at-Tohoku- University-after-finishing-my-graduate-studies,- I-wanted-to-work-on-something-new-and- contributing-to-meteorology.-After-careful- consideration,-I-decided-to-work-on-greenhouse- gas-research.- It-was-in-1977-when-I-actually-took-on-the- research.-Since-then,-I-have-been-doing-a-wide- range-of-research-targeting-carbon-dioxide-(CO2),- methane-(CH4)-and-dinitrogen-monoxide-(N2O):- atmospheric-observation-using-ground-based- stations,-regional-observations-using-airplanes,- vessels,-and-balloons,-observation-over-the- ocean-in-various-parts-of-the-world,-analysis-of- ice-core *1 -acquired-in-Antarctica-and-Greenland,- and-also-data-analysis-of-all-the-acquired-data.- All-of-such-research-is-closely-related-to-what-is- *1　analysis of ice core :-In-the-ice-in-Antarctica-and- Greenland,-the-air-from-the-ancient-time-can-be-found- locked-in.-It-is-possible-to-learn-about-the-greenhouse-gas- concentrations-of-the-ancient-times-by-analyzing-the-air- taken-out-of-the-bubbles-in-such-ice. Independent Administrative Institution National Institute for Environmental Studies (NIES) A newsletter on the Greenhouse gases Observing SATellite (GOSAT, “IBUKI” ) project from the NIES GOSAT Project Office. http://www.gosat.nies.go.jp/ NIES GOSAT PROJECT NEWSLETTER いぶき IBUKI ISSUE # 21 SEPTEMBER 2011 CONTENTS GOSAT PEOPLE People-of-"IBUKI"---Takakiyo-Nakazawa-----------------------------------------------------------01 ACTIVITIES Observation-for-GOSAT-Data-Product-Validation-Starts-in-Saga,-Japan--02 AHA! OF THE MONTH A-Series:-How-to-Use-GUIG-Tool-"SWIR-L2-Global-Distribution-Map"- --2- ----03 DATA PRODUCT UPDATE Data-Processing-Status-Update-from-GOSAT-Project-Office-----------------------04 CALENDAR 04 PUBLISHED PAPERS 04 IMAGE OF THE MONTH Arctic-Sea-Ice--------------------------------------------------------------------------------------------------------05 ANNOUNCEMENT 05 PROFESSOR TAKAKIYO NAKAZAWA Atmospheric Trace Gas Laboratory, Center for Atmospheric and Oceanic Studies, Graduate School of Science, Tohoku University GOSAT Science Team member GOSAT PEOPLE In-the-laboratory-at-Tohoku-University. Photo-by-Hironobu-Iwabuchi-(Tohoku-University). Atmospheric Trace Gas Research Messages from People of "IBUKI" "IBUKI"-being-assembled-at-the-Tsukuba- Space-Center-of-Japan-Aerospace- Exploration-Agency-photographed- in-November-2008.-Photo-by-Japan- Aerospace-Exploration-Agency © JAXA
Transcript
Page 1: ISSUE # 21 SEPTEMBER 2011 CONTENTS · 2016. 8. 12. · 3 NIES GOSAT PROJECT NEWSLETTER ISSUE#21 SEPTEMBER 2011 Inthisseriesofarticles,Iwilltakeyoustepbystepthrough theprocessofusingthe"SWIRL2GlobalDistributionMap"tool

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NIES GOSAT PROJECT NEWSLETTER ISSUE#21 SEPTEMBER 2011

Seeing the Satellite Up Close For the First TimeIn­March­2008,­I­had­an­opportunity­

to­visit­"IBUKI"­(GOSAT)­still­being­assembled­at­the­Tsukuba­Space­Center­of­Japan­Aerospace­Exploration­Agency,­with­my­fellow­GOSAT­Science­Team­members.­"IBUKI"­is­a­mid-sized­satellite­focusing­solely­on­one­mission,­but­seeing­a­working­satellite­in­person­for­the­first­time,­I­was­overwhelmed­by­its­size­and­sophistication.­There­were­some­parts­that­looked­roughly­built,­but­I­was­explained­that­this­was­made­that­way­so­it­flies­in­the­zero­gravity­condition,­and­I­remember­being­convinced­and­impressed.­When­the­Soviet­Union­shocked­the­world­by­launching­the­satellite­Sputnik­for­the­first­time­in­human­history,­I­was­in­the­fourth­grade.­Back­then,­I­was­just­a­boy­living­in­the­countryside­of­Shimane­Prefecture­in­Japan.­I­never­imagined­that­satellites­would­evolve­this­much­or­that­they­would­be­the­cutting-edge­technology­for­earth­observation,­or­not­to­mention­that­I­would­be­involved­in­the­satellite­observation.­Getting Involved in GOSAT ProjectI­studied­meteorology­as­my­graduate­study­

at­Tohoku­University,­and­stepped­into­the­world­of­scientific­research.­I­was­doing­research­on­how­the­gases­in­the­atmosphere­absorb­light.­This­is­an­elementary­topic­in­meteorology,­so­when­I­got­a­researching­position­at­Tohoku­University­after­finishing­my­graduate­studies,­I­wanted­to­work­on­something­new­and­contributing­to­meteorology.­After­careful­consideration,­I­decided­to­work­on­greenhouse­gas­research.­

It­was­in­1977­when­I­actually­took­on­the­research.­Since­then,­I­have­been­doing­a­wide­range­of­research­targeting­carbon­dioxide­(CO2),­methane­(CH4)­and­dinitrogen­monoxide­(N2O):­atmospheric­observation­using­ground-based­stations,­regional­observations­using­airplanes,­vessels,­and­balloons,­observation­over­the­ocean­in­various­parts­of­the­world,­analysis­of­ice­core*1­acquired­in­Antarctica­and­Greenland,­and­also­data­analysis­of­all­the­acquired­data.­All­of­such­research­is­closely­related­to­what­is­

*1　analysis of ice core :­ In­the­ice­ in­Antarctica­and­Greenland,­the­air­from­the­ancient­time­can­be­found­locked­in.­It­is­possible­to­learn­about­the­greenhouse­gas­concentrations­of­the­ancient­times­by­analyzing­the­air­taken­out­of­the­bubbles­in­such­ice.

Independent Administrative InstitutionNational Institute for Environmental Studies (NIES)A newsletter on the Greenhouse gases Observing SATellite (GOSAT, “IBUKI” ) project from the NIES GOSAT Project Office.

http://www.gosat.nies.go.jp/

NIES GOSAT PROJECT NEWSLETTER

いぶきI B U K I

ISSUE # 21SEPTEMBER 2011

CONTENTSGOSAT PEOPLEPeople­of­"IBUKI"­-­Takakiyo­Nakazawa­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­01ACTIVITIESObservation­for­GOSAT­Data­Product­Validation­Starts­in­Saga,­Japan­­02AHA! OF THE MONTHA­Series:­How­to­Use­GUIG­Tool­"SWIR­L2­Global­Distribution­Map"­-­2­-­­­03DATA PRODUCT UPDATEData­Processing­Status­Update­from­GOSAT­Project­Office­­­­­­­­­­­­­­­­­­­­­­­04CALENDAR 04PUBLISHED PAPERS 04IMAGE OF THE MONTHArctic­Sea­Ice­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­05ANNOUNCEMENT 05

PROFESSORTAKAKIYO NAKAZAWAAtmospheric Trace Gas Laboratory,Center for Atmospheric and Oceanic Studies, Graduate School of Science,Tohoku UniversityGOSAT Science Team member

GOSAT PEOPLE

In­the­laboratory­at­Tohoku­University.Photo­by­Hironobu­Iwabuchi­(Tohoku­University).

Atmospheric Trace Gas ResearchMessages from People of "IBUKI"

"IBUKI"­being­assembled­at­the­Tsukuba­Space­ Center­ of­ Japan­ Aerospace­Exploration­Agency­photographed­in­November­2008.­ Photo­by­ Japan­Aerospace­Exploration­Agency

© JAXA

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T h e ­ N a t i o n a l ­ I n s t i t u t e ­ f o r­Environmental­Studies­(NIES)­and­the­Japan­Aerospace­Exploration­Agency­(JAXA)­have­chosen­Saga­University­as­a­new­key­site­for­validation­of­GOSAT­data­products.­The­university­ is­ located­ in­ the­vast­Chikushi­Plains­ in­ Kyushu­ Island.­NIES­ signed­ an­agreement­with­Saga­University­ for­a­ joint­research,­and­the­mobile­LIght­Detection­And­Ranging­(LIDAR)­that­had­been­used­at­NIES­for­validation­of­GOSAT­data­products­was­moved­to­the­new­validation­point,­right­next­to­the­Saga­University's­Faculty­of­Science­and­Engineering­Building­7­(33.24­N,­130.29­E)(Photo­1).­ In­the­midst­of­preparation­for­transportation­of­ instruments­at­NIES,­ the­Great­Tohoku­Earthquake­struck­Tsukuba­with­the­tremors­of­seismic­ intensity­ level­'6­ -.'­ Fortunately,­ it­was­after­we­ finished­

packing­more­delicate­ instruments­such­as­optical­parts.­On­March­12,­2011,­one­day­after­the­earthquake,­the­instruments­were­loaded­on­two­air-suspension­trucks­which­arrived­ late­due­to­the­post-disaster­traffic­and­transported­ to­Saga.­From­March­14,­we­started­ installing­ the­container­at­ the­assigned­location,­then­assembled­LIDAR­and­made­adjustments­ (Photo­2).­At­ the­same­time,­observation­windows­were­built­in­the­roof­of­ the­container­ (Photo­3).­We­tested­emitting­laser­light­into­the­atmosphere­and­receiving­the­backscattered­ light­ from­the­atmosphere­through­the­observation­window,­and­it­was­made­sure­that­the­earthquake­or­the­long­distance­travel­had­not­affected­the­instruments.­Simultaneously,­on­the­rooftop­of­ the­Building­7,­a­ sky­camera­and­a­sky­radiometer­were­installed­as­well­(Photo­4).

In­ late­May,­ JAXA­ installed­ a­ high-resolution­Fourier­Transform­Spectrometer,­based­on­their­joint­research­agreement­with­Saga­University­(Photo­1­and­5).­This­FTS­had­been­used­for­observation­on­vessels­over­the­ocean­near­Japan­for­GOSAT­data­product­validation,­as­mentioned­in­the­last­issue­of­the­newsletter.­The­concentrations­of­carbon­dioxide­

(CO2)­and­methane­(CH4),­vertical­profiles­of­thin­cirrus­clouds­and­aerosols,­and­optical­thickness­of­aerosols­have­been­observed­using­the­FTS,­LIDAR,­and­sky­radiometer,­mainly­on­clear-sky­days­during­ "IBUKI"'s­overpass.­By­validation,­we­hope­ to­ find­to­what­extent­the­aerosols­and­thin­cirrus­clouds­affect­"IBUKI"'s­CO2­/CH4­concentration­observation­in­order­to­further­improve­the­quality­of­GOSAT­data­products.

expected­to­achieve­in­the­GOSAT­Project,­and­this­is­why­I­became­a­member­when­the­GOSAT­Science­Team­was­organized.Understanding the CycleWhen­the­greenhouse­gases­are­produced­some­place­on­the­earth,­

they­travel­in­the­atmosphere,­then­disappear­at­some­point­in­other­place.­This­series­of­processes­is­called­"cycle."­In­order­to­mitigate­the­controversial­global­warming,­it­is­necessary­to­understand­this­cycle­of­greenhouse­gases­and­to­learn­how­much­of­the­human-caused­greenhouse­gases­remain­in­the­atmosphere.­There­are­ways­to­understand­the­greenhouse­gas­cycle,­but­the­method­that­is­considered­very­effective­and­has­been­attracting­a­lot­of­attention­lately­is­to­use­the­atmospheric­transport­modeling*2­to­analyze­the­

*2　atmospheric transport modeling­:­A­computation­model­to­calculate­the­process­of­how­the­greenhouse­gases­are­transported­in­the­atmosphere­from­emission­until­absorption.­By­inputting­the­"IBUKI"­data­in­the­atmospheric­transport­modeling,­it­is­possible­to­estimate­the­net­flux­of­emission­and­absorption­of­greenhouse­gases.

closely­measured­concentrations­of­greenhouse­gases.­In­fact,­researchers­in­and­out­of­Japan,­including­we,­have­found­a­lot­about­the­cycle­with­this­method.­However,­the­findings­are­not­enough­to­understand­the­complicated­and­extensive­system­of­the­earth.­"IBUKI"­is­an­unprecedented­approach­to­the­measurement­of­CO2­and­CH4­

concentrations;­it­makes­observation­on­a­global­scale.­It­is­expected­to­lead­to­a­great­advance­in­understanding­the­greenhouse­gas­cycle.­However,­the­cycle­changes­every­moment­due­to­the­activities­of­the­nature­and­human­beings.­In­order­to­fully­understand­the­whole­picture,­it­is­important­to­acquire­data­not­only­over­the­wide­range­of­space­but­also­over­a­long­period­of­time.­Hopefully,­in­the­near­future,­the­quality­of­data­retrieved­from­"IBUKI"­will­be­further­improved,­and­the­data­will­be­analyzed­using­the­high-spec­atmospheric­transport­modeling,­and­then­a­long-term­observation­will­be­planned­with­a­possible­successor­in­consideration.

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4 5

Photo­1.­LIDAR­(two­containers­on­the­left)­and­FTS­(container­on­the­right)­set­up­right­next­to­the­Building­7­(four­story­building­in­the­back)­at­Saga­University.­Photo­2.­LIDAR­installed­inside­the­container.­Photo­3.­Two­observation­windows­built­in­the­roof­of­container­(the­one­in­the­back­is­for­tropospheric­ozone­LIDAR,­and­the­one­in­the­front­is­for­aerosol­observation).­Photo­4.­The­sky­radiometer­(left)­and­sky­camera­(right)­on­the­rooftop­of­the­Building­7.­Photo­5.­JAXA's­high­resolution­FTS­installed­inside­the­container.­Photo­:­1­Shuji­Kawakami­(JAXA)­2-5­Osamu­Uchino

Observation for GOSAT Data Product Validation Starts in Saga, Japan-­Osamu­UchinoValidation­ManagerNIES­GOSAT­Project­Office

ACTIVITIES

3

2

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In­this­series­of­articles,­I­will­take­you­step­by­step­through­the­process­of­using­the­"SWIR­L2­Global­Distribution­Map"­tool­(hereafter­referred­to­as­the­Tool)­on­the­GOSAT­User­Interface­Gateway­(GUIG).­The­main­functions­of­the­Tool­are­as­follows1) Search/display concentration data: you­can­search­and­display­the­latest­version­of­SWIR­Level­2­column-averaged­mixing­ratios­(XCO2,­XCH4)­of­the­points­that­were­observed­by­"IBUKI"­2) Save displayed data: you­can­download­the­displayed­data­as­text­format­or­KML­file­format­(for­Google­Earth).3) Display CAI data as background: you­can­display­CAI­Level­3­satellite­ images­(global­radiance­distribution­(3­day's­worth­data),­or­global­reflectance­distribution­(a­month's­worth­data))­as­a­background­of­the­map.­The­CAI­images­are­from­the­same­observation­periods­as­the­displayed­SWIR­Level­2­data.This­month,­I­would­like­to­demonstrate­the­main­functions­of­the­

Tool­regarding­the­part­2­of­1)­Search/display­concentration­data­(for­requirements­and­how­to­start­the­Tool,­please­refer­to­the­last­issue­(August­2011)).­2)­and­3)­will­be­demonstrated­in­the­coming­issues.­For­more­detailed­instructions­on­how­to­use­the­Tool,­please­also­refer­to­the­"Help"­in­the­right­bottom­of­the­Tool­page.­

1) Search/display concentration data (part 2)In­the­last­ issue­(August­2011­issue),­we­introduced­how­to­

search­and­display­the­concentration­data­products­for­a­specific­time­period.­It­is­possible­to­search­under­even­narrower­search­conditions.First,­by­setting­the­minimum­and­maximum­values­in­the­"VMR­

(volume­mixing­ratio)"­section­(e),­the­range­of­color­bar­(d)­on­the­bottom­of­the­map­can­be­changed.­You­can­also­set­up­either­to­view­or­not­to­view­the­data­of­certain­ranges­by­checking­on­and­off­in­the­boxes­(f),­and­if­you­press­the­"List>"­button,­only­the­corresponding­data­will­be­displayed­on­the­map­and­listed­in­the­table­in­the­bottom­right­of­the­page.­If­you­check­on­the­"Disp.­Circle­for­Not­Selected­Data,"­box­(h)­you­can­display­the­data­from­checked-off­range­as­empty­circles­instead­of­solid­circles.­Additionally,­you­can­also­choose­to­hide­data­of­either­"Land"­or­"Sea"­by­checking­the­box­in­the­"Land/Sea"­section­(i)­and­pressing­"List>"­button.You­can­specify­the­area­of­data­to­view­using­the­"Rectangle"­or­

"Polygon"­in­the­"Area"­section­(j).­With­"Rectangle,"­you­can­specify­an­area­by­click-and-dragging­on­the­map,­or­by­entering­values­in­latitude/longitude­(k).­If­you­click­on­the­"List>"­button­in­the­end,­only­the­data­in­the­specified­area­will­be­searched­and­plotted­on­the­map,­and­listed­in­the­table­in­the­bottom­right­of­the­page.­

AHA! OF THE MONTH

A­screenshot­of­the­Tool­after­searching­for­XCO2­for­the­term,­from­January­1,­2011­to­August­1,­

2011­and­for­the­specified­area­(Rectangle:­N40­-­S40,­W20­-­E60)­over­the­land.

-­Kenji­Hayashi,­NIES­GOSAT­Project­OfficeA Series: How to Use GUIG Tool "SWIR L2 Global Distribution Map" - 2 -

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!"#"$

!%#&$

!%#"$

%#'$

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2009/4 2009/6 2009/8 2009/10 2009/12 2010/2 2010/4 2010/6 2010/8 2010/10 2010/12 2011/2 2011/4 2011/6 2011/8 2011/10 2011/12

Month and Year of Observation

Observation Period and Versions of Publicly Released Data

FTS L1B

CAI L1B+

As of September 9, 2011

FTS L2 CO2 column amount (SWIR)

FTS L2 CH4 column amount (SWIR)

CAI L1B

CAI L2 cloud flag

Versions and Approx. Numbers of Released Data

●050050　143700 scenes ●080080　80200 scenes ●100100　210500 scenes ●110110　125700 scenes ●128128　116400 scenes ●130130　123200 scenes

● 00.50　　32500 scans ● 00.80　　16700 scans ● 00.90　　38600 scans ● 01.10　　26000 scans ● 01.20　　14800 scans ● 01.30　　46900 scans ● 01.40　　28300 scans ● 01.50　　12800 scans

●00.10　　117200 frames ●00.80　　16300 frames ●00.90　　114000 frames ●00.91　　66500 frames ●00.92　　63500frames

●00.50　　44800 frames ●00.80　　16300 frames ●00.90　　114000 frames ●00.91　　66000 frames ●00.92　　50100 frames　　

●00.50　　117200 frames ●00.80　　16300 frames ●00.90　　114000 frames ●00.91　　66500 frames ●00.92　　64000 frames

●00.50　　35200 scans ●00.80　　23700 scans ●00.90　　43300 scans ●01.10　　24300 scans ●01.20　　13400 scans ●01.30　　44200 scans ●01.40　　27700 scans ●01.50　　12300 scans

●00.50　　99 recurrences ●00.80　　36 recurrences ●00.90　　253 recurrences ●00.91　　144 recurrences ●00.92　　79 recurrences

FTS L3 CH4 distribution (SWIR)

FTS L3 CO2 distribution (SWIR)

CAI L3 global radiance

●01.10　　8 months ●01.20　　3 months ●01.30　　7 months ●01.31　　1 month ●01.40　　5 months ●01.50　　2 months

●01.10　　8 months ●01.20　　3 months ●01.30　　7 months ●01.31　　1 month ●01.40　　5 months ●01.50　　2months

CAI L3 global reflectance ●00.91　　49 recurrences ●00.92　　47 recurrences

2011/10/04 - 05Participation­at­CAE­POWER­2011­held­at­the­Garden­City­Shinagawa­in­Tokyo,­Japan.2011/10/18 - 20Participation­at­the­17th­Atmospheric­Chemistry­Symposium­held­at­Kyoto­University­in­Uji,­Japan.2011/11/10 - 11Participation­at­ the­51st­Autumn­Conference­of­the­Remote­Sensing­Society­of­ Japan­held­at­Hirosaki­University­in­Hirosaki,­Japan.

2011/11/16 - 18Participation­at­ the­2011­Autumn­Meeting­of­ the­Meteorological­Society­of­ Japan­held­at­Nagoya­Univer s i t y ­ in ­ Nagoya , ­ Japan .­Hosting­the­special­ topic­session­"Development­of­atmospheric­carbon­dioxide­measurement­techniques­and­ their­ data­ application"­ on­November­18,­2011.­

CALENDAR

Field of Research : carbon­balance­estimation,­atmospheric­transport­modelsName of Journal : Journal­of­Climate­(­Volume­24,­Issue­15,­4109-4125)­Title :­Evaluation­of­Biases­in­JRA-25/JCDAS­Precipitation­and­Their­Impact­on­the­Global­Terrestrial­Carbon­BalanceAuthor :­M.­Saito,­A.­Ito,­and­S.­Maksyutov

Field of Research : data­applicationName of Journal: Geophysical­Research­Letters­(­Volume­38,­No.14,­L17706,­6­PP.)­Title: New­global­observations­of­the­terrestrial­carbon­cycle­from­GOSAT:­Patterns­of­plant­fluorescence­with­gross­primary­productivityAuthors: C.­Frankenberg,­J.­B.­Fisher,­J.­Worden,­G.­Badgley,­S.­S.­Saatchi,­J.-E.­Lee,­G.­C.­Toon,­A.­Butz,­M.­Jung,­A.­Kuze,­and­T.­Yokota

PUBLISHED PAPERS

Here­we­report­an­update­on­data­processing­status­for­late­August­and­early­September.Continued­from­last­month,­we­are­processing­and­

releasing­the­V128.128­and­V130.130­for­FTS­L1B­data­product,­V00.92­ for­CAI­L1B,­L1B+,­L2­cloud­ flag,­L3­global­radiance­distribution­and­L3­global­reflectance­distribution­data­products,­and­V01.50­for­FTS­L2­CO2/CH4­column­amounts­(SWIR).­We­have­newly­released­the­FTS­L2­CO2/CH4­column­amounts­for­the­month­of­June,­and­FTS­L3­global­CO2/CH4­distribution­for­the­month­of­May­and­June.­The­FTS­L2­CO2/CH4­column­amounts­are­produced­from­the­V128.128­of­FTS­L1B­data­products.­The­ number­ of­ registered­ users­ is­ 1108­ as­ of­

September­9,­2011.

DATA PRODUCT UPDATEData Processing status uPDate from gosat Project office-­Fumie­Kawazoe,­Specialist,­NIES­GOSAT­Project­Office

Page 5: ISSUE # 21 SEPTEMBER 2011 CONTENTS · 2016. 8. 12. · 3 NIES GOSAT PROJECT NEWSLETTER ISSUE#21 SEPTEMBER 2011 Inthisseriesofarticles,Iwilltakeyoustepbystepthrough theprocessofusingthe"SWIRL2GlobalDistributionMap"tool

5­­­

NIES GOSAT PROJECT NEWSLETTER ISSUE#21 SEPTEMBER 2011

Three­summers­have­passed­in­the­northern­hemisphere­since­"IBUKI"­was­launched.­The­three­images­captured­by­"IBUKI"­show­what­the­sea­ice­looked­like­in­the­Arctic­Ocean­in­early­September­of­the­last­three­years.­September­is­the­time­when­the­Arctic­Sea­Ice­becomes­the­smallest­of­an­entire­year.­After­the­autumnal­equinox,­the­sun­does­not­reach­the­Arctic­Circle­anymore,­and­thus­"IBUKI"­cannot­capture­what­it­looks­like­in­the­Arctic.­It's­been­reported­that­the­area­of­sea­ice­covering­the­Arctic­Ocean­has­

declined­to­the­second­smallest­on­record*1.­It­might­not­be­clearly­visible­in­these­three­images­that­the­area­of­sea­ice­is­declining,­however,­it­is­obvious­that­the­distribution­of­ice­coverage­differs­depending­on­the­year.­In­the­Arctic­Archipelago,­the­strait­looks­closed­with­ice­in­2009,­but­it­looks­open­in­2010­and­2011.­The­Arctic­Ocean­is­connected­to­the­Atlantic­Ocean­between­the­

Scandinavian­Peninsula­and­Greenland.­Due­to­the­warm­ocean­current­that­flows­in­from­there,­the­ice­is­melted­away­in­the­bottom­right­part­of­the­image.­In­the­top­part­of­the­image,­the­Arctic­Ocean­is­connected­to­the­Pacific­Ocean­by­the­Bering­Strait­between­Eurasia­and­North­America.­Since­this­strait­is­narrower,­the­ice­has­not­been­melted­away­as­much.­There­is­no­ice­along­the­coast­of­Eurasian­continent,­and­the­only­area­where­the­Arctic­sea­ice­touches­the­coast­is­Greenland­to­the­Arctic­Archipelago.

*1　2011 Sea Ice Minimum - NASA

http://earthobservatory.nasa.gov/IOTD/view.php?id=53108

IMAGES OF THE MONTH arctic sea ice-­Nobuyuki­Kikuchi,­Specialist,­NIES­GOSAT­Project­Office

edited and published by : NIES GOSAT Project Office

email : [email protected]

　　 website : http://www.gosat.nies.go.jp/eng/newsletter/top.htm

address： 16-2 Onogawa, Tsukuba-City, Ibaraki,

305-8506 Japan　

　 　　　 GOSAT Project Office

　 　　　　 Center for Global Environmental Research

　　　　　　　 National Institute for Environmental Studies

NIES GOSAT PROJECT NEWSLETTER

You can download this newsletter here:

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Reproduction in any form without publisher’s permission is prohibited.NIES GOSAT PROJECT NEWSLETTER

いぶきI B U K I

ISSUE #21 SEPTEMBER 2011 Issued­on­:­2011.09.30

©JAXA/NIES/MOE 2011.09

©JAXA/NIES/MOE 2010.09©JAXA/NIES/MOE 2009.09

ANNOUNCEMENTNIES­GOSAT­­PROJECT­NEWSLETTER­October­issue­will­not­be­published.­We­are­coming­back­in­November­2011.

Arctic Archipelago

Scandinavian Peninsula

North American Continent

Greenland

Eurasian Continent

Revised­on­:­2011.11.28

http://earthobservatory.nasa.gov/IOTD/view.php?id=53108

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