MODIS数据处理过程

1、1.MCD12Q1数据下载下载地址：/data/search.html打开网页，出现如下图:1.1选中需要的数据源类型：4HOME-DATA+MMJES+TOOLS+HELPSearchforDataProducts11youknowthefilenamsEoftheproductsforhich/duaresearching,youmayalsoseardiforfilenam-99.ProductSelectionPleaseselectcneormoreproducts:1-Vi:&wHelpPleaser&adlabomtth&cail&ctloo5MOD04_L2amdlknD04_

2、L2products.AllSUDITIIPJPPVIIRSEDRSarecurrentlyETAQUALITY|WIFHKINOWNPROBLEMSANOARENOTINTENDEDFOR1.2选择所要下载数据的时间，通道，范围等：FpedT/BauncliNkxlh:East:NjWest:1亓Soulh:刑rt目ndlTiE巳EndDateamdTlE&?Sqi.2D10OO:OO:DO1231.2D1033:59:59CocrdlnateSyslem:|Lalllude.iLonglludeInaddlllon1centeringthcoordinalesus；电rswithav2cr

3、lptenabledltraw/sersma/usetn曰rmciusetoarglononih皀maporselectoneofthepredefinedregions.ICIIIpJIKJII-dCICLIVIIPleaseenterthetenpcralinformationineitherMMCDAYrYorVYY-GDDFormatH刃wHelp(j&n5.1containsalullsetoftheAquaproductsMVDD4_L2.MDO5_OdUCl：PODM_L占阳ODQ5_I2r-iODOJzi.lt.nYDD8_BTheseproductscann&I(xig&rb

4、efoundmCollectionb,*ViewHelpL2,r.lD06_L21MVgfML21MVDO0_D3.MD08_E3.andjjg匹口脳uodo8_E31andMOD08_Ln3.SpatialSelectioninMetadataSeleciionPGEVei-lonAlter?(MCD12ai)厂匸ollcctianSGlectionPleaseseleclacollection:Colledion:isCollection5.1-seieDiedAtmosandLandPreductsF俺2e旦0ntwrthecoordiinzlosrorDurareacTIntersst

5、.+Vi&wH色Ipoumayalso帀Itsrons刖怕ralmatedateli&lds.SeledYesne?dtoeachlidldltofillsronfriatlieldl.Thsproductsthatwillbefilteredarelistedbesideeachfield.*ViawHelpHlt&r?|ND|(MCD12Q1)PredefinedReaions:Start:End:PercentClDudCover1询3誼CoastarWestAlncaContinentalUSIndianSubcontinentSeaofJapanUSWestCoastholeEait

6、hDateajMfTirneRangeNcithAraffTEasl;south0.0100.01.3点击search查到需要的数据：SdenceOualilacMam?:港异文件未卿任问文件uonunemaiuyIndianSutcanlinenlSeaorJapanU3.WealCaastWhol-3EqrtnMetadaiaSelectionYcumayalsofilleronseveralmetadatafields.SelectYesnerf1deactiiieldtciiltercnIhaLheld.Theprcudstha1will*ViewHelptoiil扫rad)areli

7、stedbesideach-field(MCD1201)(MCD12Q1)Filler?(MCD1201)|NOTIFiller?(MCD1201)(MCD12Q1)(MCD1?ai)FGEVersionStartEnd.PerEenlCloudCoer0.0lioa.oStartEnd.FercenLGDDdQualrty0.0|100.(StartEndFercenlLand0.0|1O00StartEndPerceniOlherQuaiil0.0|1O00StartEnd-QPercen1MI：aginQDat：3D.D|iaaaFiller?Filler?Finer?(MCDWi)*R

8、equirematlhetilleredmetadataHelds陀denned5beincludedinihesearchrerunsSavedParameteirESelectioiiYoumayloadsuemailaedres.+HDMEDMA1fIMME卡TDOJ始订购该数据。（如果要搜索多天数据，可以选addfilestoshoppingcart其他日期的数据。出现下面的页面，填写你的订购邮箱，qq邮箱不能用箱都可以，最好是你能够进去的邮箱，点击下面的Order。然后出现如下页面：5prodiucti+TWLSLAADSWebLevel1andAtfnosphereArchivea

9、ndDistributionSystemGDDDAHDSPACEFLIGHTKMTEH*V1&itNASdgovOrdrResultsYouha0Ddg起atotalor5productni日s:OrderItfM1CMkl975corBningthesefilesisreadyYoucanclickontheOrderIdfordownloadinformatiQnYou回illsalBTBBBHSHRSffiilwithdninloadinstruciians.Afleryouha/edmnlDadledlanorder,plFaserEmemb&rtDRELEASEJTboVialsub

10、sequentorderswillno!9h9ldupwailingTorYoucanalsoira讯yourordersTromtnDa.la-TrackordersFramlhalrag,旳ucanraI*抽orcancelorders.+PrivacyPolicyandImpodanlNdlcosVJesmaster:GregEder&rNASActndai:EdMasuoka十SandUsouCorniErTtsprocessing,areon-line,andarereadyTorimmedlaleOeiryer-点击红色标记部分能看到如下你订购的信息：（注意：红色部分是你要下载数据

11、的文件名字）LlTiBTUHOME十HELPs=ltxInternalSSL送壓DlonftjifIMAGES*TOOLSYoumayalsodcxivnlcadmufileEir-DTilhBstagincdirector!vrilhGNU2旳ElVEt-r-hr-relinksEtpX/l-idwtl.-n.3Gdn.iiftsd.pv.wrders/SOlCHHTS/Pleasenote(hat/ouriitaQinodHrectcwrywilleftpiTeandberemovedonJune13,2016.Youmay血wrilci自datesdTileorthechecksumso

12、TlhefilesinurorderOrderSummaryAlistoT1henieflideredcanheroundbelo1ForpasiproresaedordersDieInputniearelisted.PieprocessedfilesategivenItiesamanameasihairinputfileswrlh1hggrdflrIDadded勺皿口甩lhehcfSKisnsionLAADSWebLevel1sndAtmosphiereArchiveandDistributionSystem+VisitNASAflCfwOrderDetailsInslrudionararr

13、eblesingurUlescanbefoundbela1iryDu日ehsuingbroutile时iingyourHl-ss,pleaseteaureyouareinpassivenodsInmostFTPdienls.passr-19madeistogoiadbytypingThismayoenecsssaiveciusesoneiirBwallsonlvpermiiFTPinpas-5mgde.ftjlddsbTiDSOET5*的Ik迂ilsq:rftss/ord：(HWiJuliStgcji.亡止1皿GODDARDSPACEFLIGHT!CENTEROrderInotnuctjans

14、4-Help*PrivacyPolicyandImnortaniNoiicas-SendUsWurXcjEniEEsWebmasterGreqEderer翅閣NASACflldalEJASGUI：匣jXrcGW9硼可片段血首无02.陋无屁星訂FiSiodi=dt.ti1flyCmgutei：-iThQu.ickCtriiiiAct曰tFl-i:-hTi-irSii：c3点击连接。在右边的框中会显示所有数据，找到自己数据所在的文件夹（我这里的文件夹名字跟上面的不是同一个，这里仅供参考，以上面的那个文件夹为准），并拖到左边的框中（选择你要保存数据的目录），开始下载数据。ZFluhFIFE10金话叩

15、館点翻世）冋如命专（）JlHd）目录芟看ffllbtHJ名舫t上超目录n&QOlSEQqJ&flO33E9D2)5m33OS9L1500330593500331595=5003315北Jl500331597二|T1加hHFJ3.ED二(Iraki迟】別缈百貂#坛-戲If三十孟计IT穿JSGFCramrttfrrW3GPCMrteifVL.3亍他频诰瞬换工貝1tlPraSCl)wf丈小修BE时闫風性亡冏。知眦02OB-tllq0-40Irvxr-Erx己1虫0知胆L02OB-tllq0-42Irvxrirarx己1虫幻油的02OB-tllq9:12Irvxr-Erx己1虫幻油就02OB-tllq

16、9-ieIrvxr-ErxgsanaaHEEDED03-LD-q93Bdrvxr-EFxg9an：3aH&7DED03-LD-q93Bdrvxr-EFx巴宜ID冏OHEfl0EOH-llqgqidjYKr-xr-K：巴宜ID冏OHEfl0EOH-llq才艸djYKr-xr-K：OO3M0TO0EOH-llqg：qrdjYKr-xr-K：心宜ID冏0盯L0EOH-llqgqedjYKr-xr-K：02OB-10-q9：5Ldrvicfcxr-M：02B-LIqii：Etiinn*mL；T102OB-10-q】D：羽drvicfcxr-M：020DB-10-iq0：ShnmrHrxLM：|-大孙修

17、改吋间4QDQ-jD-LQ即D4】D-LT即D4】D-LTzaDB-0-L3ZaDB-0-L23000-10-133000-10-13ZOOEID-LZZOOEh?-6lZ008-1D-B:5.3DJIB3anD-B!6.50FIBZ008-10-B:516KB3108-1D-L3】U个立阵观.43g豔強计SB1.00GEClT.EEl臥躺叮IlMDVllD.d=F灯kf*KICE3O5WVVOin2Hffl.AZORgTOSHOE000235201902hdfriodiidatg_fij1IJJLypgLiKVRPA57R27EjHotl加hswLW血k096.1fl.9q.4fl,Zifl

18、.lB)m正H打开SdfiseITL1L8.I讽.40富口55O1TA-OK！2.处理数据第一步：数据读取在ENVI中file中第一个选项打开hdf格式的文件:TOC o 1-5 h zENVIClasdcXFilmBacicTodsda&ificatiQnTtfanEforimFilterSp&ctralMapVaclorTDpcgrajphiERadarWindowHelpQA/silahle-BandsLi肚XFilmOpticHnsHDFCetasetSelectionXTile:EJKFJOODISISk9I63OlZ9MCD1201iZ012001.hLl_Ccer_Typ(EOO

19、kEOO):LajiiUcverjyjie_4(ZOOOO):LMiOo1；er_rjjpe_5：4UDm2：4CID):Lo.1_Ccter_Typjl_AzsESTiant(200k200I:Landjoverjyje_2_As3szarixit(Z400kZ400:LiniiSoverJiTe_3_Assessnent(Z4QQ应4口。:L4ji-1_C：verjyp_As5gssriant(200jt2-4(0):Lm-l_Cover_rypt_5_As5tzsTicnl:(400sZ400it):LaiiiLCofer_7yjeJ3C(ZODjtZQD):er_Typ_1qondoi

20、ry(2-400h2-400；i:LdCov亡屮_ypt_ljSeoDndary_Fctg亡sth(400sZ400、:LCJroperty_l也JUD):斤叩肛匕朋NunilsEraIlLeiiisselected.：】Sleot扎口匸七emsClt-M；-AllItenzOKCutcal第二步：数据地理定位MODIS三级数据产品土地覆盖数据是已经经过投影了的，其投影类型为正弦曲线投影，但是很多遥感软件在打开HDF数据的时候，会有投影丢失现象，ENVI也是，可以通过hdf属性查看工具，查看ENVI打开hdf时未识别的投影信息，以及投影参数，利用该参数在ENVI中自定义正弦曲线投影，为MCD1

21、2Q1数据添加投影。（1）用hdf属性查看工具查看该hdf数据的地理定位信息，选择你刚才打开的那副影像，可得图像左上角、右下角坐标值，投影类型，投影参数地球半径，起始位置。GlcbalAHributes:MCD1W.A2012001,h21t03.051.2013179170233.hcfAleUXAstnbutfll:HDBEJ5VersionHDFEOS.V2.3AAttiibvtBS2:宵ttuctm.DGROUPSwathGtructureEND_GR0UPSwaithSttuctuxeGROUP=GridStructureI护丄GridNameMODlZQlXDim=24D0Diin

22、=24D0UpperLeEtEfeintMtFh遜51.559000应？170：3.110000)LawerRightMtrs-(4447602.070667.5559752.590333)ProlectLon=GCTF_SNSOIDFrojFarans=(6371007.13100D.0.0.0.D.0.0.0)SuhereCode=一1GridOrigin=HDFFLGD_ULGEOUF二0屯竽岂严OBJECT=Diiiiension_1DijiensionNante=Nu.n_QC_WordsSize=iEND_OBJECT=Dimension_LEND_GEOUF=DTmension-

23、GHOUP=DataFieldOBJE匚T=l?ataField_l2)在波段列表中，单击右键打开editHeader，打开EditAttributes-MapInfo。在EditMapInformation面板中，单击ChangeProj按钮新建一个sinusoidal坐标。投影名称(ProjectionName)：Sin投影类型(ProjectionType)：sinusoidal投影半径(SphereRadius)：6371007.181(数据集中获得)东偏(Falseeasting)：0北偏(Falsenorthing)：0中央经线(Longitude)：0。QfEdrtMapIrformationxInieCoardinatedfliePointImageK1.6LOOgeJ1.HM0Has-t(Tn.t*lJCujEtomi2edMapProjectionDefinitionBEQ7|InputInzaFronSarijles3EUvLinesOKCanoelLoasituleofcentralneridLRLonLtul