dart_als_hhhh_20120620_20120620_las.zip

URL: http://dartportal.leeds.ac.uk/dart_public/dart_remotesensing_nerc_lidar/dart_als_hhhh_20120620_20120620_las.zip

DART were granted a series of airborne surveys by NERC ARSF. These surveys were conducted on 14/06/2011 (Diddington only), 23/03/2012 & 20/06/2012 (both sites), and comprised vertical aerial photography, Hyperspectral imagery and LiDAR / Airborne Laser Scanning (ALS). This description pertains to the LiDAR / ALS data. These were acquired using a Leica ALS50-II scanner with the upgrade to full waveform. Datasets collected during 2012 were all full waveform.

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Last updated Dec 09, 2013
Created Dec 09, 2013
Format application/zip
License Open Data Commons Attribution License
createdDecember 9, 2013
formatZIP
id8095030e-c791-4289-819f-113b9fddcdd0
instrumentLeica ALS50-II with Leica WDM65 Waveform Digitizer Module
instrument.calibrationDetailsSee lidar quality report *.pdf in the _DOC resource
instrument.headerMetadataUnknown
instrument.measurementDomainAndUnitsSpatial (x,y,z (m)), Intensity (DN), Time of flight(ns), Returns, Number of returns, Scan rank angle (degrees), ASPRS classification (int, 1-7), Wave packet, waveform
instrumentIDUnknown
last modifiedDecember 9, 2013
license idodc-by
mimetypeapplication/zip
on same domain1
position11
resource group id9be8fa33-472f-4d42-ae35-4868df08d08c
resource.abstractDART were granted a series of airborne surveys by NERC ARSF. These surveys were conducted on 14/06/2011 (Diddington only), 23/03/2012 & 20/06/2012 (both sites), and comprised vertical aerial photography, Hyperspectral imagery and LiDAR / Airborne Laser Scanning (ALS). This description pertains to the LiDAR / ALS data. These were acquired using a Leica ALS50-II scanner with the upgrade to full waveform. Datasets collected during 2012 were all full waveform.
resource.accessConstraintsNone
resource.bibliographicCitation@data{dart_als_hhhh_20120620_20120620_las.zip, doi = {not allocated}, url = {http://dartportal.leeds.ac.uk/dart_public/dart_remotesensing_nerc_lidar/dart_als_hhhh_20120620_20120620_las.zip}, author = "{NERC_ARSF}", publisher = {DART repository, School of Computing, University of Leeds}, title = {dart_als_hhhh_20120620_20120620_las.zip}, year = {2013}, note = {DART is a Science and Heritage project funded by AHRC and EPSRC. Further DART data and details can be found at http://dartportal.leeds.ac.uk} }
resource.completenessComplete
resource.consistencyConsistent data structure, attribution and relationships.
resource.creation.endDateTime2012-06-20
resource.creation.startDateTime2012-06-20
resource.creation.statusComplete
resource.creator.nameNERC_ARSF
resource.custodian.emaila.r.beck@leeds.ac.uk
resource.custodian.nameAnthony Beck
resource.custodian.orcIDhttp://orcid.org/0000-0002-2991-811X
resource.descriptionLiDAR data collected by NERC ARSF and processed by NERC ARSFDAN using the Leica ALS50-II sensor. The ALS50-II operates with a 8W class 4 laser with radiation at 1064 nm. It works by firing a pulse every 4ns or 9ns and measuring the round trip time to when a reflection is detected. This is then converted into a distance. There are 2 banks of timing cards - each one with 4 cards. This means that it can measure up to 4 independent returns for each pulse (it only uses the 2nd bank of cards when operated at the higher pulse rate). A minimum time separation between two returns means the minimum distance between two returns must be at least 2.7m for them to be counted as independent. Further information on his sensor can be obtained here- http://arsf-dan.nerc.ac.uk/trac/wiki/Sensors/LeicaLIDAR. The data here contain upwards of 12 hits per m squared if overlapping flightlines are considered. The data supplied here are seperated into three datasets. _DOC contains the documention fro each flight, _LAS are the LAS 1.3 files containing the full-waveform information and _TXT contains the discrete survey data converted to ASCII text files. This is the LAS files. The zip archive contains all the LAS 1.3 files. Information can be extracted from these using the free LasTools package(http://www.cs.unc.edu/~isenburg/lastools/) This can be run under windows and linux. Hint- In Linux running the windows .exe files under wine is easier as it does not involve compiling the packages from source.
resource.distribution.techniqueDownload only
resource.edition1
resource.fileFormat.zip, .las
resource.funderNational Environmental Research Council,Science and Heritage Programme, Arts and Humanities Research Council, Engineering and Physical Sciences Research Council
resource.instructionalMethodNone
resource.keywordsRemote Sensing, Monitoring, LiDAR, ALS, Leica ALS50-II, Airborne laser scanning, full-waveform, topography, terrain, surface, 3d, topographic
resource.languageeng
resource.licenseodc-by
resource.license.typeURLhttp://opendatacommons.org/licenses/by/
resource.lineageNone: this is raw data
resource.localURIhttp://dartportal.leeds.ac.uk/dart_public/dart_remotesensing_nerc_lidar/dart_als_hhhh_20120620_20120620_las.zip
resource.metadata.creator.emailscds@leeds.ac.uk
resource.metadata.creator.nameDavid Stott
resource.metadata.creator.orcIDhttp://orcid.org/0000-0003-3042-2813
resource.metadata.languageeng
resource.methodsAndStandardsClasification of points performed by NERC ARSF to American Society of Photogrammetry and Remote Sensing specifications (http://www.asprs.org/a/society/committees/standards/LAS_1_3_r11.pdf)
resource.processingStageComplete
resource.processingStepsClasification of points performed by NERC ARSF to American Society of Photogrammetry and Remote Sensing specifications (http://www.asprs.org/a/society/committees/standards/LAS_1_3_r11.pdf)
resource.publisherSchool of Computing, University of Leeds
resource.purposemulti-temporal heritage detection
resource.relatedResourcesDartProjectOverview
resource.repositoryNamehttp://dartportal.leeds.ac.uk/
resource.reuseConstraintsNo conditions apply for reuse (remix it, publish it, share it, commercialise it, sell it etc.) except attribution (see resource.bibliographicCitation)
resource.reusePotentialarchaeology, environment, heritage, soil science, farming, ecology, geography, earth science
resource.samplingStrategy700m altitude. c.60% ovelap between flightlines
resource.topicgeoscientificInformation, environment, heritage, farming, climatology/Meteorology/Atmosphere, imageryBaseMapsEarthCover, society, structure
resource.typeDataset
resource.type.specificLas 1.3
resource.updateFrequencynot planned
revision id75b30dfb-4737-4d5a-8cc1-809e3d7beca7
revision timestampDecember 9, 2013
size2.4 GiB
spatial{ "type": "Polygon", "coordinates": [ [ [-1.907587, 51.7073],[-1.881537, 51.7073], [-1.881537, 51.70238], [-1.907587, 51.70238], [-1.907587, 51.7073] ] ] }
spatial-textUnited Kingdom
spatial.boundingBox.OSGB36.east408,282
spatial.boundingBox.OSGB36.north200,958
spatial.boundingBox.OSGB36.referenceSystemOSGB36
spatial.boundingBox.OSGB36.south200,497
spatial.boundingBox.OSGB36.west406,483
spatial.boundingBox.WGS84.eastLongitude-1.882
spatial.boundingBox.WGS84.northLatitude51.707
spatial.boundingBox.WGS84.referenceSystemWGS84
spatial.boundingBox.WGS84.southLatitude51.702
spatial.boundingBox.WGS84.westLongitude-1.908
spatial.defaultReferenceSystemOSGB36
spatial.driftGeologyHHCC: Clay: no superficial drift geology, HHQF: no superficial drift geology
spatial.landuseArable
spatial.ordnanceSurveyPlaceNamehttp://data.ordnancesurvey.co.uk/id/50kGazetteer/109734
spatial.polygon.OSGB36{ "type": "Polygon", "coordinates": [ [ [406483, 200958],[408282, 200958], [408282, 200497], [406483, 200497], [406483, 200958] ] ] }
spatial.polygon.WGS84{ "type": "Polygon", "coordinates": [ [ [-1.907587, 51.7073],[-1.881537, 51.7073], [-1.881537, 51.70238], [-1.907587, 51.70238], [-1.907587, 51.7073] ] ] }
spatial.solidGeologyHHCC: http://www.bgs.ac.uk/lexicon/lexicon.cfm?pub=CB, HHQF: http://www.bgs.ac.uk/lexicon/lexicon.cfm?pub=SI
stateactive
temporal.rangeDescribedByDataDateTime.end2,011
temporal.rangeDescribedByDataDateTime.start2,012
temporal.resource.availableDate2013-08-01
title.alternativedart_remotesensing_nerc_lidar
title.patternWhere appropriate each resource has been named with the following pattern: DART_<3 character sensor/collection name>_<spatial location>_<StartDateTime YYYYMMDD with optional HHMM>_<endDateTime YYYYMMDD with optional HHMM>_<stage PRO or RAW to refer to processed or raw data>_<other stuff>.<suffix>. Hence, the file DART_T3P_DDCF_20110823_20130106_PRO.csv refers to DART data collected using the T3P Imko soil moisture probes at Diddington Clay Field between 23rd August 2011 and 6th January 2013 which has been processed and is available in a comma separated text format.
typefile.upload