Geospatial - GIS Innovations

Ongorora zvidhori zvepa satellite uye kubudisa kuongorora uchishandisa Landviewer

Kana zvasvika pakutsvaga yakatarwa dhata (AOI - Nzvimbo yekufarira) yeruzivo kubva kure maseru, EOS - Nyika Inotarisa Sisitimu ndeimwe yeanonyanya kushandiswa mapuratifomu ewebhu; zvese kutsvaga, kusarudzika uye kudhawunirodha mifananidzo kubva kune epuratifomu mapuratifomu. Iyi papuratifomu ichangobva kubatanidza maturati ekuburitsa dhata, ayo akakosha kutaura nezvawo.

Huru inowanikwa Landviewer rinoumbwa richasara divi panel, apo zvinhu zvose chimwe nechimwe nzvimbo anotsanangura sensors, izvo chokuita Aoi, mumwe Toolbar pamahombekombe kuruboshwe, iro rine mabasa sezvo varatidza: richiswedera Aoi (rectangular, polygonal, kana denderedzwa), chiyero, tsananganisa kuiswa, urongwa hwezvikamu, mugove, nguva yekuongorora uye 3D maonero. Munharaunda yakaderera ndiyo chiyero, nzvimbo inobatanidza nzvimbo yacho.

Pakupedzisira, mubhokisi rezvimbo, nzvimbo yekufarira yakaiswa uye yose mifananidzo yakabatana nehoyo iyoyo yakaratidzwa.Zvino, paitsvaga nzvimbo inodikanwa, AOI inogadziriswa inozogadzirisa kuitira kuti inobvumira kusvika kune raibhurari yekushandisa. Pamusoro peizvi, inofanirwa kubvunzwa kuti iwe usati waona, tsvaga, sarudza uye chengetedza chero mamiriro ezvinhu, unofanira kubhaira pa peji usati waita chero nzira, kubvira pakunyorera iwe kupinda munguva yekuedzwa kwemazuva 15 ne avo vanowana zvikomborero izvi:

Flexible kutsvaga, kusarudzwa kwakadzika kwepasi, kwepakati uye nepamusoro kusarudza mifananidzo, kushandiswa kusingagumi kwekubatanidza uye nheyo, kusikwa kwezvinyorwa zvetsika, kusvika kune zvakaitika kare munhoroondo, nzvimbo dzakawanda dzinofarira, uye WMS kuti inyore data mune chero yeGIS.

Chikamu -iro rakanga risati rasununguka- ine yakafara uye mitsva mabhenefiti. Usati wagona kudhawunirodha kanokwana gumi zvigadzirwa zvepa satellite kubva papeji rino, pasina zvirambidzo; ikozvino, pamwe neyekuvandudzwa nyowani, zviri zvishoma zvine hunyanzvi.

Panopera pakuvaka Aoi, ivo ndivo vanonzi vakapa zvinhu zvose nechokuita munharaunda iyi. Kuruboshwe the pane anoratidza platforms zvose kuti ane mashoko ari nzvimbo kuti gare gare zvinogona yakasvinwa maererano nechinangwa pakudzidza. Satellite platforms izvo zvinogona kusarudzwa zvigadzirwa ndiwo: Sentinel-2L1C + 2A, Landsat 8 oli + TIRs, Landsat 7 ETM +, Landsat 4-5 TM, CBERS-4 MUX, CBERS .4 WFI CBERS-4 PAN5, CBERS 4 -PAN10 uye NAIP.

Kubatsira kwekushandisa AOI ndechekuti chikuva hachiratidze mhedzisiro isingaenderane kana isingavhare nzvimbo yakanangwa, zvese zvigadziriso kune peji zvinoitirwa kuitira kuti nzvimbo yekufarira ifukidzwe zvizere nesatelite chigadzirwa cheiyo yakasarudzwa sensor. Izvi zvakakosha zvakanyanya, nekuti mune mamwe mapuratifomu ekudhodha akadai seUSGS, kana iyo Alaska SAR Facility, ivo vanobvumidza poindi kuti iwanikwe, asi havavimbise kuti iyo poindi yakafukidzwa zvizere nenzvimbo. Izvi zvinobatsira kudzikisa nguva yakashandiswa kutsvaga uye kusarudza zvigadzirwa, uye muongorori anogona kushandisa yakawanda nguva pre kana post-kugadzirisa.

Paunenge uchishanda neAOI, haugoni kupiwa kana kuratidza chero mifananidzo isinganzwisisiki isina kufanana kana kunyanya kuvhara nzvimbo yakasarudzwa.

Mamwe mavara ezvinoshandiswa anogona kushandiswa semufananidzo wemifananidzo, kureva kuti, kana ari masikati masikati masvikiro, mashoma ekugadzirisa mafungiro, mafungiro anoshanda, nzvimbo yepasi, data yeEOS data, uye mifananidzo yakakwirira. . Chimwe chezvinyorwa zvinonyanya kufadza peji ndechekuti dzinobatsira muongorori kuti azive mazuva api ane zvigadzirwa zvakabatana neAOI yavo, yakanga isati yasvika zuva rokutanga uye yekuguma uye zvese zvakafanana zvakaratidzwa.

Kana iwe tinya pakarenda, unogona kuona misi hunobudiswa yebhuruu, kuti zvinoitika kana muine zvikamu dziripo, uye unofanira kutsvaka dzimwe mazuva asi, nebhuruu nyora, unogona kuva nechokwadi iyo zuva ane zvatinoona.

Sezvo chikwata chacho chine mifananidzo yakagadzirwa uye izvi zvinonyanya kugadzirisa zvinhu zvakadai segoreiness, panewo firiji inobatsira kubvisa zvifananidzo zvine chepamusoro chekuwedzera kwegore. Mukuwedzera, zvinokwanisika kubhadhara kugamuchira zviziviso pamusoro pezviitiko zvitsva zvakabatana neAOI, kana kana imwe tsvaga yekutsvaga yakaitwa, iyo hurongwa kana kurangarira uye kutumira zizivo zvekuwanikwa kwechigadzirwa.

Iko kunyorera kunochengetedza ese maAOIs akagadzirwa, nekufamba kwenguva, anogona kutorwa pasi, nechimwe chishandiso chakawedzerwa, kubviswa kweAOI kuumbika fomati kana kubviswa sezvinodiwa. Panyaya yekushandiswa kwema indexes, pamberi peiyo yekuvandudza, zviono zvinogona kutariswa, pamwe nemanongedzo anonyanya kushandiswa senge NDVI kana NDWI, ikozvino vawedzera mamwe akawanda ma index, akadai seSAVI, ARVI, EVI, SIPI kana GCI Grassland Clorophile Index.

Mushandisi, zvichienderana nechinangwa chechidzidzo, anogona kushandura indekisi, kuisa zita raanofunga, sarudza iyo pendi yemumiriri inonyanya kumiririra pakudzidza kwake -kana kuumba itsva-, akawana zvivako zvakawanda, kusanganisa muitiro kune dzimwe nzira nenzira iri nyore.

Chimwe chishandiso chinonakidza ndiko kuongorora, kunokubvumira kuchengeta nguva iyo maimbove maitiro, uye iwe unogona kuona kuti AOI yakasarudzwa kare yakashanduka sei. Iwe unogona kuita zviratidzo pakati pezviratiro zvakafanana, kana nhamba iyo platform inopa. Mhedziso inogona kubva kubva ku1 kusvika ku6 mwedzi, kana kubva mugore re1 kusvika ku10 yemakore, kana nguva yakatarwa ichidiwa, inogonawo kuiswa.

Muchikamu chino chitsva che Landviewer, zvinokwanisika kuoneka kuchinja mafananidzo, sezvo inozivikanwa kuti nekuda kwemhepo kana zvimwe zviitiko zvinogona kunge zvakajeka kana kuti zvakasviba, izvo izvo zvinopesana nemabasa zvakawedzerwa. kutambanudza, kuti kuenzanise ihetagram, mune zviyero zvemahoma kana chiedza chakareba icho chiitiko chacho chine.

Pane 4 dzakasarudzwa zvingashandurwa kuti uchinje chifananidzo:

Kutarisa itstogram yaro,
tambanudza histogram yakazara data set,
chikamu chemuganhu chekugadzikana,
Culinary stretch cut (default).

Kuwedzera pamusoro apa, unogona:

Iwe kuwedzera akaturikidzana vanoona kuburikidza WMS servers, nhoroondo anogona kutorwa ne kutema Aoi, saka iri pamwe kutsvaka bhokisi (1) kana zvakakwana chigadzirwa nzvimbo kuyerwa tinodzibata nyore, munogona kuwana pamazita akaturikidzana kuti zvaishandiswa muitiro kubatana kuchikuva (kubva nechigadziko mepu, nyika MDT kuburikidza rokupedzisira mufananidzo kushandiswa).
Vanotaurira mukana wekugovana zviitiko mumasangano evanhu, zvakadai sepa twitter, LinkedIn, Facebook, kana kuburikidza nehutano (2). Saizvozvowo, kana pane kukanganisika kuri papuratifomu, boka rekutsigira rinosangana mubhokisi rakagadzirirwa muzasi kwechikamu chekona (3).

Zvakakosha kuona kuti mashandisi akadai sei, anobatsira kuvandudza nekuita kuti kugadziriswa kwedhesi, uye kuvakwa kwenharaunda yekuongorora. Michina iyi yakavakirwa gore Data inokwanisa kuchengetwa mugore EOS yakawanda zvinhu uye kuwana izvi chero kombiyuta, zvose zvaunazvo nezvacho ndechokuti hachisisiri yepachena pakakwirira, ndizvo akakodzera kubhadharira mabasa anopiwa. Tichaona munguva yemberi iri pedyo kana zvishandiswa izvi, zvishoma kana zvachose kutsiva GIS zvikumbiro uye PDI (Digital Image Processing), izvo zvave munguva ichangopfuura akadai ERDAS Fungidzira kana ENVI.