Ljungbergs Lab’s webpage and Remote Sensing SLU on Facebook

We are exploring more ways to spread information about our activities via the internet and social media.

The latest additions are

  • www.rslab.se – The Ljungberg’s Lab’s website. Check this for the latest activities!
  • Remote Sensing – SLU is on Facebook. Like us!
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New grants received

New grants were received in 2016!

Jörgen Wallerman was the main applicant for a grant from the Swedish Forest Society Foundation, with Erik Willén (Skogforsk), Johan Fransson, and Jonas Bohlin as co-applicants. Approximately 800 tSEK over 2016-2017 will go to the project ”Large scale and accurate mapping of forest data from stereo-matched aerial photos with harvester data as ground reference”.

Johan Holmgren was co-applicant (Erik Willén from Skogforsk was the main applicant, and Michael Tulldahl FOI as co-applicant) for a grant from Brattåsstiftelsen, for ”Mobile laser scanning for collection of tree data”, at a total of 1.8 million SEK over three years between the three organisations.

Johan Holmgren also received notice late 2015 that the Bo Rydin foundation approved his grant (Mattias Nyström, Kenneth Olofsson, and Håkan Olsson co-applicants) on Mobile Laser Scanning at approximately 724 tsek 2016-17.

Congratulations!

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Remote Sensing and Forest Inventory course given for first time

Spring term 2016 started with a new course called ”Remote Sensing and Forest Inventory”. It’s the first time a 15hp course is given on Remote Sensing and Inventory combined. Eleven forestry undergraduates and two PhD students have taken the course which has run from January 18 – March 21.

New elements in the course have been

  • ”Ljungbergs Week” with demonstrations and hands-on experience with TLS, UAVs, and 3D point cloud generation
  • A new radar exercise using Sentinel-1 data
  • A lecture on ground-based inventory methods using remote sensing instruments (TLS, MLS, and photogrammetry)
  • Introduction to multi-source forest inventory
  • Integration of lecture and exercises using our Environmental Monitoring data (From NFI and NILS)

The students finish the course Monday 21 March with a presentation of their one week independent project.

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A productive Fall

The Remote Sensing group at SLU has had a very productive Fall. The latest fruits of that labor have been several successful grant applications, including:

”Tree species information from airborne and terrestrial sensors” – 1.8 million SEK from Hildur och Sven Wingquist Foundation for forest science research to Eva Lindberg (main applicant), and Johan Holmgren, Håkan Olsson, Johan Fransson, Mattias Nyström, Kenneth Olofsson and Jörgen Wallerman as co-applicants. The project will use our Remningstrop study area.

”Iterative land cover classification using multiple Sentinel-2 images” – 3.1 million SEK from the Swedish National Space Board to Heather Reese (main applicant), and Eva Lindberg, Anton Grafström and Håkan Olsson as co-applicants. The study will use time series of new Sentinel-2 images.

”Mobile laser scanning for forestry applications” – 724 tSEK from Bo Rydins foundation for scientific research to Johan Holmgren with co-applicants Mattias Nyström, Kenneth Olofsson and Håkan Olsson.

”Mobile laser scanning for forestry applications” – 430 tSEK from Carl Tryggers foundation for scientific research to Johan Holmgren with co-applicants Mattias Nyström, Kenneth Olofsson and Håkan Olsson.

A number of articles were published this Fall as well, with the latest being ”Data Assimilation in Forest Inventory: First Empirical Results” in the journal Forests 2015, 6(12), 4540-4557  with authors Mattias Nyström, Nils Lindgren, Jörgen Wallerman, Anton Grafström,  Anders MusztaKenneth NyströmJonas BohlinErik WillénJohan E. S. Fransson, Sarah EhlersHåkan Olsson, and Göran Ståhl. A link directly to the article is found here: http://www.mdpi.com/1999-4907/6/12/4384.  For a complete list of our publications for 2015, please link to our web site on www.slu.se/srh/.

As a last highlight, please look at the separate web site for the Ljungbergslab — www.rslab.se — to see all the activities going on there.
We look forward to 2016 and the exciting work to be done in the Remote Sensing field. But first, we look forward to a Christmas Holiday break.
God Jul!
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September activities

The summer vacation is over and remote sensing activities are back in full swing. Among other things, there are several conferences coming up in September that we have or will be attending. These include:

Photogrammetric Week in Stuttgart, Germany, where Jonas Bohlin attended.

FOSS4G, which Mats Högström is attending.

Silvilaser 2015 where Håkan Olsson is a committee member, and the following presentations will be given by members of the Forest Remote Sensing section:

– Data assimilation in forestry, first practical results using ALS data. Mattias Nyström, Nils Lindgren, Jörgen Wallerman, Anton Grafström, Anders Muszta, Kenneth Nyström, Göran Ståhl and Håkan Olsson.

– Individual tree properties from ALS data as input to habitat analysis in boreal forest. Eva Lindberg, Jean-Michel Roberge, Therese Johansson, Markus Hollaus, Johan Holmgren and Joakim Hjältén.

– Updating the National Forest Attribute Map using stereo matching of aerial images, the national terrain model and data from the National Forest Inventory? Jonas Bohlin, Johanna Blombäck, Jörgen Wallerman and Johan Fransson.

– A nationwide forest attribute map of Sweden derived using airborne laser scanning data and field data from the national forest inventory. Mats Nilsson, Karin Nordkvist, Jonas Jonzén, Nils Lindgren, Peder Axensten, Jörgen Wallerman, Mikael Egberth, Svante Larsson, Liselott Nilsson, Johan Eriksson and Håkan Olsson

– Estimation of tree stem attributes using ground based and airborne laser scanning. Johan Holmgren, Kenneth Olofsson, Mattias Nyström and Håkan Olsson.

SLU also shared an announcement today for the upcoming ”Remote Sensing Days” held by the Swedish National Space Board in October.

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Formas projects granted which will use remote sensing

The Swedish Research Council Formas has made a decision on the projects awarded money from their call ”Research on forest raw materials and biomass – sustainable primary production”. The application ”Data assimilation for supporting sustainable forestry” where Håkan Olsson was the main applicant (Göran Ståhl, Johan Sonesson, Anton Grafström, Johan Holmgren, Lars Wilhelmsson, & Eva Lindberg as co-applicants), was granted 5 million SEK.

Two other projects where remote sensing section members were co-applicants were also granted funding, namely the project ”Does sustained yield of forest biomass result in a carbon sink at the forest landscape scale?” where Mattias Peichl is the main applicant (Johan Fransson, co-applicant from remote sensing) received 6.6 million SEK, and the project ”The forgotten forest? Linking commercial thinning and biodiversity for sustainable biomass production in boreal forest” with Sönke Eggers as the main applicant (Eva Lindberg, co-applicant from remote sensing) received 5.4 million SEK.

See the press release on the Formas website.

 

 

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Sentinel-2 has gone into orbit

On the morning of June 23 (01.52 GMT) the Sentinel-2a satellite was successfully launched into orbit. You can read about the launch at the following website European Space Agency Sentinel-2 launch and more on Sentinel-2 on Wikipedia Sentinel-2.

Liftoff_of_Vega_VV05_carrying_Sentinel-2A

Photo: ESA–M. Pedoussaut, 2015 (from http://www.esa.int/spaceinimages/Images)

 

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Laser-based forest maps at SkogsElmia and SkogsNolia

20150604_150757_SkogsElmia
  Photo by Svante Larsson, Skogsstyrelsen.

4-6 juni och 11-13 juni kunde besökare på SkogsElmia och SkogsNolia titta på sin skog i de rikstäckande skogskartor som SLU och Skogsstyrelsen tagit fram. Kartorna, baserade på Lantmäteriets nationella laserskanning och Riksskogstaxeringens provytor, visar uppskattad volym, höjd, diameter, grundyta och biomassa. Data är fritt tillgängliga på www.skogsstyrelsen.se/skogligagrunddata. Skogsägare kan även komma åt kartorna via Skogsstyrelsens ”Mina Sidor”.

4-6 June and 11-13 June, the visitors at SkogsElmia and SkogsNolia could look at their forest in the national forest maps SLU and the Forestry Board have developed. The maps, based on the National Land Survey laser scanning and National Forest Inventory plots, show the estimated volume, height, diameter, basal area, and biomass of the forest over Sweden. The data are freely available on www.skogsstyrelsen.se/skogligagrunddata. Forest owners can also access the maps through the Forest Agency’s ”My Pages”.

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Göran Persson’s visit to SLU on Feb. 17

On February 17th, Göran Persson (former Swedish Prime Minister and currently Chairman of the Board of Sveaskog) visited SLU to give a talk about the future of the Swedish forest industry and to meet SLU employees and students. Mattias Nyström took the chance to show Göran Persson some recent work from the Remote Sensing section, including the Ljungbergs lab (including UAVs), and the national forest parameter estimates created from ALS data.

GoranPersson_visit

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SLU from above

We took these photos during a flight the day before Christmas. The hexacopter we’re using belongs to the educational lab Ljungbergslaboratoriet. The winter is not the best environment for electronics, but it’s better than rain. As you see below, it … Continue reading

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