Welcome!

What’s New:

New Video on Species Classification with QSM

  • Can quantitative measures of tree structures, taken from QSM reconstructions, classify trees by species? Well, yes! A new YouTube video animation, keyed to a paper soon to appear in Remote Sensing of Environment by the Tampere U. of Technology (TUT) Inverse Problems group, shows the features that do it and how well they separate birch, pine, and spruce. Watch and listen in HD and stereo.

Royal Society TLS Meeting, 27-28 February 2017

  • A two-day scientific meeting, The Terrestrial Laser Scanning Revolution in Forest Ecology, sponsored by the Royal Society of London, will be held at Chicheley Hall, near London, on February 27–28, 2017. Organized by TLSIIG members Mark Danson, Mat Disney, Rachel Gaulton, and Crystal Schaaf, the meeting will focus on how TLS technology is now revolutionizing the mapping and monitoring of change in forest ecosystem structure and function.  Click on the link for more info and to request an invitation. Places are still available!

TLSIIG at AGU 2016, December 12-16, San Francisco

  • With five session and nine papers and posters, as well as many related papers and posters, the Fall Meeting of the American Geophysical Union was a veritable banquet of new and interesting science for TLSIIG members. Find the abstracts through the links on our AGU 2016 page.

Quantitative Structure Model (QSM) Papers Online Here

  • Have you been meaning to catch up on your reading about QSM? Look no farther than our new page of QSM papers with links to pdfs!

New Posts on TLSIIG Member Sites and Blogs

Click on the links at the left to view the news at the sites below:

  • Mat Disney’s Blogspot: Borneo, Brazil, Peru, California, and St. Pancras Old Church — on the agenda for scanning in 2017. Visit here for a preview of the giant redwoods and the churchyard tree planted by Thomas Hardy. And jump to Phil Wilkes’ post on the National Centre for Earth Observation blog with an overview of 2016 work by the Disney crew.
  • Wageningen University and Research: Billy the Elephant is now joined by new updates to the WUR web site, showing recent scanning locations, including Ethiopia and Ghana. If you are interested, scan data and reference data are available. Also, don’t miss the youtube videos and animations and the links to their latest papers!

TLS Research Coordination Network

  • The TLSRCN web site opened in Fall 2015, to document RCN activities and allow participants to exchange information. Have a look, and if you are interested, see the last paragraph of the Welcome page to apply to join.

New Publications

  • Caves, salt marshes, mangroves, and eroding coastal slopes, not to mention temperate and tropical forests, are all targets for the Compact Biomass Lidar (CBL), as demonstrated in a new paper in Remote Sensing in Ecology and Conservation by Ian Paynter and Crystal Schaaf’s crew at UMass Boston. Have a read to see what this “little lidar that could” can do!
  • Looking for a up-to-date review paper on TLS and ALS? Jan Eitel and friends’ new article in Remote Sensing of Environment focuses on multitemporal and multispectral applications using return intensities as well as point locations. The reference list is worth the trip alone!
  • Tired of worrying about using those stock values for the proportion of woody area (α) in the PAI to estimate the LAI from hemiphotos? Take heart — Will Woodgate and friends have a new method for retrieving α from classified imagery or scanner data that works really well. Their new paper in Agricultural and Forest Meteorology provides the details.
  • Lambertian leaves? Think again. A new paper by Sanna Kaasalainen and colleagues at QFo Finland uses their hyperspectral lidar to show that leaves do, in fact, have a strong specular component to lidar reflectance. And, the specularity is wavelength dependent — so spectral indexes or even spectral ratios are angle-dependent, too. Hmmm….

Earlier News

Scan Movies and Fly-Throughs