Welcome!

What’s New:

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: Travel to the deepest, darkest, part of eastern Peru, in western Amazon Basin, with intreped explorers Andy Burt and Kim Calders scanning now-classic plots on an altitudinal gradient. Or visit the world’s tallest tropical trees in Borneo — 94 m in height — with Andy and Matheus Boni Vicari. Or stay home and take a 3-D tour of a spring back garden, then pluck the leaves off an apple tree, courtesy of Matheus. It’s all here for the clicking.
  • SALCA Diaries: Royal Approval for TLS Research! Visit here for a wrap-up on The Terrestrial Laser Scanning Revolution in Forest Ecology, sponsored by the Royal Society of London, held at Chicheley Hall, near London, in late February. The meeting focused on how TLS technology is now revolutionizing the mapping and monitoring of change in forest ecosystem structure and function.  Click on the link to see the program and hear the presentations.

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.

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!

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