The OpenTopography Community Dataspace allows users who are producing small tomoderatesizedtopographicdatasetsto:• ArchivetheirdatawithOpenTopography• Establishproperdatasetcita>on• Enabledatasetsharingandreuse• Provideeduca>onalapplica>ons
CommunityDataspaceTutorial
IfyoudonothaveaCommunityDataspaceaccount,youcanapplyforone:• GotoDataà“ContributedData”.Fromthatpagetherewillbealinktoclickinorderto
applytobecomeadatacontributor.
CommunityDataspaceTutorial
UserswillbedirectedtotheirMyOpenTopoAuthoriza>onspage:
CommunityDataspaceTutorial
ScrolldowntotheboLomtorequestpermissiontosubmitdatatotheCommunityDataspace:
Oncetheaccountissetup,logintoyourOpenTopographyaccount:• Clickonthe“ContributeDataset”buLontostarttheprocess.
CommunityDataspaceTutorial
Step1:• Giveyourdatasetaname.This,tlewillbeusedinyourdatacita,on,somakeitunique
anddescrip>ve.It’sbesttofollowatemplateof“MeasuredFeature,Loca/on,Date”Forexample:“SurveyofOzaukeeSouthBeachBluff,Wisconsin,May2018”
• Choosethecollec>onplaPormthatwasusedtocollectyourdataset.• ChecktheappropriateboxifyoudatasetcontainsPointClouds,Rasters,orboth.• Select“Next”whendone.
CommunityDataspaceTutorial
Step2:• Foreachfiletype,uploadtheappropriatefiles.
• Point Clouds:we currently only accept LAS orLAZformats.LAZformatsarepreferredastheyreduce file size dras>cally, and will reduceupload >mes. If the data is georeferenced,pleasemakesure that thecoordinate systeminfoisincludedintheheader.
• Rasters: we currently only accept IMG or TIFfiles.Ifthedataisgeoreferenced,pleasemakesure that the coordinate system info isincludedintheheader.
• Metadata:ThemetadatadocumentmustbeinPDF format. Users are free to use whateverformat they wish, but it is preferrable if theOpenTopography template is used. Thetemplateisavailableonthedatauploadpages.
CommunityDataspaceTutorial
CommunityDataspaceTutorial
Notes:• Click on the “Notes” link for guidance on upload
requirements.• Users can upload mul>ple files through the “Choose
Files”buLon,orbydragginganddroppingfiles.• Althoughthereisa10GBlimitonasinglesubmission,ifa
projectislargerthan10GB,itshouldbebrokenintopartsandsubmiLedwithpartnumbersdesignatedclearly.
Step2(con,nued):• Addthefilesbyusingthe“ChooseFiles”buLonorbysimplydraggingthefilesintothedesignatedareaofthewindow.• Whenallfileshavebeenadded,selectthegreen,“StartUpload”buLontobegintheuploadprocess.• Thereisa“StartUpload”buLonforeachcategoryoffile,sobesuretoperformthisopera>onforeachofthesec>onsyou
added.• Notethatifyouhavenotuploadedsuccessfully,therewillbeasmall“x”nexttothefilesize.
CommunityDataspaceTutorial
Step2(con,nued):• Onceyou select the “StartUpload”buLon, youwill see theprogressbaraseachfile isuploaded to theSanDiegoSuper
Compu>ng(SDSC)server.• Whenallthefileshavecompletedtheuploadprocess,selectthe“Next”buLonattheboLomofthepage.
CommunityDataspaceTutorial
Step3:• Thisstepvalidatestheinputdata.Theamountof>methisrequireswilldependonthesize,andamountfilesuploaded.• Theprogressofthevalida>onisdisplayedonthewebsiteasseenbelow.
CommunityDataspaceTutorial
Step4:• Ifthevalida>oncompletessuccessfully,a
pagewillloadthatshowsamapwiththetotal spa>al coverage of all the datasetsinred.
• Therewillalsobeaseriesoftextboxestoadd addi>onal informa>on about thedatasets.
• Required fields are marked with a redasterisk.
• If the map does not show the footprintloca>ons, it could mean that either thedata did not have proper coordinatesystem informa>on, or it was notrecognized on ingest. If you know theEPSGcodeofthedata,youcanenterthiscodeintheboxbelowthemaptoupdatethecoordinatereferencesystem.
CommunityDataspaceTutorial
Step4(Con,nued):• Clickingonthe“ShowDataFiles”barwillshowalistofthefilesthatwereingestedandsomebasic
sta>s>csoneachfile.• Clickingonthe“ViewDetail”buLonwilldisplayaddi>onalmetadataforeachfile.
CommunityDataspaceTutorial
Step4(Con,nued):• Clickingonthemappiniconontherighthandsideofeachfilelis>ngwillupdatethemaptoshowthe
spa>alextentofthatfilecoloredingreen.• Clickingonthegarbagecaniconwilldeleteafilefromthecollec>on.
CommunityDataspaceTutorial
Step4(Con,nued):• Itisbestprac,cetoprovideasmuchinforma,onaboutthedatasetaspossible,somakeanefforttofill
inallapplicablefields.• Project Roles and Contributors can be added to help provide contact informa>on. A_er adding a
contributor, a green check mark will display to show that the user or organiza>on has been addedsuccessfully.
CommunityDataspaceTutorial
Step4(Con,nued)FinalSubmission:• Usethe“SaveProgress”buLontosavework,butdelaysubmi`ngthedatasetforanother>me.• Whenall thedataentry iscompleted,andthedataset is readyforfinalsubmission,select the“Submit
Dataset”buLon. ThepagewillrefreshanddisplayabanneratthetopthatstatesthatthedatasethasbeensuccessfullysubmiLedandispendingOpenTopographyapproval.
• Youaredone!OnceanOpenTopographyteammemberreviewsthesubmission,anemailwillbesenttoyouraccountwithalinktoverifythedatasubmissionanddisplaythedatahomepage.
CommunityDataspaceTutorial
TipsandTroubleshoo,ng:• UseLAZfileswhenpossible.Thecompressiondras>callyreducesfilesizes,andwillspeedupthewholeprocess.• Whenappropriate,verifythatfileshavecoordinatesysteminforma>onintheheader.• Ifuploadsaretakingalong>me,orhavestalled,theprocessmayhaves>llcompleted. Userscancheckthestatusofthe
upload by going to MyOpenTopoà Contributeà “View and manage my community Dataspace datasets” (see imagebelow). Select theeditbuLonnext to theprojectof interest,andverify thatall thefilesareuploadedandhavecorrectsta>s>cs.
CommunityDataspaceTutorial
TipsandTroubleshoo,ng(con,nued):
• WhenworkingwithTLSdata,some>meserrorscanoccurintheuploadbecausethedistribu>onofpointsbetweenthefilesisveryuneven–e.g.filescontainingpointsnearthescan-centerwillhaveMUCHlargerpointcountsthanfilescontainingpoints far fromthescanner. This largediscrepancy infile sizescancauseerrorswhenuploading to theDataspace. Theeasiestsolu>onrightnowistosplitthedatausinglassplitfromtheLAStoolspackage(hLps://rapidlasso.com/lastools/).Thefollowingcommandcanbeused:
lassplit-v–iinput.laz–ooutput_/le.laz-digits2-split25000000Thissplitsthethelazfileintofileswith25,000,000pointsineachfile. The"digits"keywordisjusttellingtheso_waretoincrementthefilenamesby2digits,sooutputfilenameswillbeintheform:output_>le00.laz,output_>le01.laz,etc.
• Notethatifthereiss>llanunevendistribu>onofpointsbetweenthefiles,itmaybenecessarytomanuallysplitthefiles,with the XY loca>on of the scanner as the split loca>on. This can be accomplished by using the las2las command, andmanuallyspecifyingtheXYrangeofthedatatoincludeineachfile.Usingthe“-keep_xy”keywordenablestheabilitytocutoutdataforaspecifiedXYrange.Forexample:
las2las-iinput.laz–ooutput.laz-keep_xy35060147523223510214752696
CommunityDataspaceTutorial
TipsandTroubleshoo,ng(con,nued):• Forcita>onofdatasetscontributedtotheCommunityDataspace,acita>onwillbeautoma>callygeneratedinthefollowing
format:
PI’slastname,PI’sfirst/middleini/als.(publicreleaseyear):Titleofdatasetcollec/on.DistributedbyOpenTopography.linktoDOI.DateofDataAccess.Examples:Hiscock,A.(2019).2019ZigZagLandslideReconnaissance,MorganCounty,Utah.DistributedbyOpenTopography.hLps://doi.org/10.5069/G96D5R4Q.Accessed:2020-01-22Amatulli, G., McInerney, D., Sethi, T., Strobl, P., Domisch, S. (2020). Geomorpho90m - Global High-Resolu>onGeomorphometryLayers.DistributedbyOpenTopography.hLps://doi.org/10.5069/G91R6NPX.Accessed:2020-01-22Gruetzner, C. (2019). Suusamyr Basin, eastern 1992 surface ruptures, Kyrgyzstan. Distributed by OpenTopography.hLps://doi.org/10.5069/G9V69GRT.Accessed:2020-01-22Arrowsmith, J R., PiscioLa, F. and CERG-C (2018): Photogrammetric model of a por>on of the Faraglione--a rockoutcropping in the Vulcano Town area, Vulcano Island, Sicily, Italy (point cloud [17M points] and DEM [6 cm/pix]).DistributedbyOpenTopography..hLps://doi.org/10.5069/G9WD3XPDAccessedOctober29,2018
CommunityDataspaceTutorial
