Should add there are known cases where specific trees have been EXCLUDED from mapping.
The one which comes to mind is the national database of native Black Poplars<http://sppaccounts.bsbi.org.uk/content/populus-nigra-1>(*Populus nigra betulifolia*) maintained by the BSBI recorder for the taxon, Fiona Cooper. In her book on the tree (available at remaindered book specialist Postscript Books<http://www.psbooks.co.uk/BookDetailsBySubj.asp?ver=Fts&prm=Natural+History&sel=False&selG=False&subG=True&Code=40345&pg=Natural+History&ur=Science_Nature_Natural_History_Fts.asp?pgn%3D17&pgSz=15%23Nav40345>at the moment) she kept many the details of many records secret. Apparently Black Poplar enthusiasts were a bit casual about walking on private land in their quest with the result that landowners were destroying the trees. Jerry On 7 March 2014 11:09, Tom Chance <t...@acrewoods.net> wrote: > Hi Brian, > > Ok, I didn't realise Andy had offered off-list. > > Here's one bit of work I did mapping trees: > http://tom.acrewoods.net/2011/04/19/maps-open-data-and-activism-on-the-heygate-estate/ > > It's also worth reading this report, particularly the section from > paragraph 4.11, which gives some idea of the context of street tree data > collection and availability by councils: > http://www.london.gov.uk/sites/default/files/FINAL%20street%20trees%20report%20010611.pdf > > Since then a few councils have released some more semi-open data > (encumbered by the usual uncertainties around OS licensing), but they > aren't doing so in a way that makes it easy to track whether threes have > been planted or felled, and few councils give useful open data on > attributes like height, circumference and canopy size that would enable > someone to estimate the spread of roots. > > Regards, > Tom > > > On 7 March 2014 09:25, Brian Prangle <bpran...@gmail.com> wrote: > >> Hi everyone >> >> I've had a definite from Andy Mabbett to do this and a possibly from Tom >> Chance. At this stage I think it's best to confirm on Andy Mabbett. If >> that's OK can Andy pick up on the use cases that have been mentioned here >> to get more info from the contributors mentioned? We have a 30 min >> presentation slot and 30 min Q&A at 1700 on March 31 at IBM SouthBank >> >> Regards >> >> Brian >> >> >> >> On 4 March 2014 13:37, Tom Chance <t...@acrewoods.net> wrote: >> >>> I could possibly do this, I've done various projects to do with mapping >>> trees and know a fair amount about tree and climate change policy. But I'm >>> not an expert on the underlying OSM data model and API. If anyone wanted to >>> chip in thoughts on stable URIs I'm all ears. >>> >>> Tom >>> >>> >>> On 4 March 2014 08:33, Brian Prangle <bpran...@gmail.com> wrote: >>> >>>> Hi everyone >>>> >>>> We have an invitation from IBM to present at this meeting- suggested >>>> topic is below. Anyone up for this - either with the topic suggested or >>>> with a suitable alternative? >>>> >>>> Regards >>>> >>>> Brian >>>> >>>> A few weeks ago, we had a use case webinar with the CIO of the City of >>>> Palo Alto who told us about an local initiative to tag trees with lat/long, >>>> genus, size, etc. During the call, we asked him if he also considered >>>> tagging the trees with URI's and of course he hadn't. Following the call a >>>> colleague sent me an article about how tree roots often damage natural gas >>>> lines and lead to widespread gas leaks. Methane is 20x more dangerous as a >>>> greenhouse gas than CO2, so gas leaks are a leading cause of global >>>> warming. >>>> >>>> We would like to find an openstreetmaps speaker who can talk about the >>>> value of mapping trees and gas lines, and many other things, with URI's. >>>> Would you be able to discuss this? >>>> >>>> We will be meeting on March 31 and April 1 at IBM Southbank, and would >>>> love a presentation/discussion the morning or late afternoon of the 31st. >>>> Would this topic and date fit? >>>> >>>> _______________________________________________ >>>> Talk-GB mailing list >>>> Talk-GB@openstreetmap.org >>>> https://lists.openstreetmap.org/listinfo/talk-gb >>>> >>>> >>> >>> >>> -- >>> http://tom.acrewoods.net http://twitter.com/tom_chance >>> >> >> > > > -- > http://tom.acrewoods.net http://twitter.com/tom_chance > > _______________________________________________ > Talk-GB mailing list > Talk-GB@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-gb > >
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