Research scientist at the Canada Centre for Remote Sensing (Natural Resources Canada) with interest in Arctic change
Ottawa
Joined July 2013
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Photographed some beaver pond complexes this summer in the Hudson Bay Lowlands lying above the broadleaf treeline. The dams were very low and long, frequently spanning the floodplains surrounding the ~ 3 m wide streams and ending at beach ridges formed by post-glacial rebound
Robert H Fraser retweeted
In time to celebrate #GISDay and #GeoWeek2022, researchers from @NRCan‘s Canada Centre for Mapping and Earth Observation have released this information product detailing field methods in support of caribou lichen mapping. arcg.is/1j4yXi2
The second consecutive summer of severe gypsy moth caterpillar defoliation around the Frontenac Park area in ON. Oaks getting hit hardest and had only a weak second flush of leaves last year - hopefully healthy enough to do it again
UAV and High Resolution Satellite Mapping of Forage Lichen (Cladonia spp.) in a Rocky Canadian Shield Landscape tandfonline.com/doi/full/10.…
Robert H Fraser retweeted
#DYK 🇨🇦’s Arctic is warming at twice the global rate?
That’s why our scientists are working with northern colleagues to analyze archival satellite images going back to 1984.
Read this #SimplyScience article: ow.ly/snWN50CTshJ
#ArcticScienceMonth
ALT Three scientists working together with equipment in a grassy field.
ALT Exploring the past to help plan for the future
ALT “Trying to distinguish recent climate change impacts from natural landscape variability can be complicated.” - Robert Fraser, scientist.
Robert H Fraser retweeted
Meet Don Fraser from #teamASG. Fun facts: his award-winning career in journalism also required him to be a mall Santa & mascot in a St. Catharines parade! He was a rower while studying at @UofT and @Carleton_U. Also stalked #ChristopherWalken on #Kingston film set for interview.
Robert H Fraser retweeted
The Arctic Landscape Ecology Lab is seeking a PhD student to lead a research project on Remote Sensing of Permafrost Landscape Change. Please circulate / RT.
@PYRN_official @ArcticNet @yukoncollege @UvicNorth
@ArcticNETSA @ACUNSAUCEN @nwtresearch @AuroraCollegeNT @UVicENVI
Robert H Fraser retweeted
Reproductive limitation mediates the response of white spruce (Picea glauca) to climate warming across the forest–tundra ecotone
nrcresearchpress.com/doi/ful…
Our small field team from CCRS/NRCan just wrapped up five days of lichen plot sampling and UAV surveying in NWT with Darren P. from Environment Canada and @JurvdS from GNWT.
Testing the DJI Phantom 4 RTK and Micasense Altum multispectral UAV camera on a Matrice 210 in preparation for NWT field work. Would like to develop a workflow to register the Altum to the precise georeferencing from the Phantom RTK so that no GCPs are needed.
This would also allow pan-sharpening of the coarser Altum images - quality and usefulness of this tbd...
Altum surface reflectances using only camera corrections and a reference panel are pretty bang-on. Kudos to @MicaSense and also @pix4d (v4.5.2) for the robust work flow.
Robert H Fraser retweeted
Climate change drives widespread and rapid thermokarst development in very cold permafrost in the Canadian High Arctic agupubs.onlinelibrary.wiley.…
"Observed maximum thaw depths at our sites are already exceeding those projected to occur by 2090 under RCP 4.5"
