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Author |
Noor Johnson, Matthew L Druckenmiller, Finn Danielsen, Peter L Pulsifer |
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Title |
The Use of Digital Platforms for Community-Based Monitoring |
Type |
Journal |
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Year |
2021 |
Publication |
BioScience |
Abbreviated Journal |
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Volume |
71 |
Issue |
5 |
Pages |
452-466 |
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Programme |
1090,1206 |
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Thesis |
Bachelor's thesis |
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ISSN  |
0006-3568 |
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yes |
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Call Number |
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Serial |
8248 |
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Author |
Hajo Eicken, Finn Danielsen, Josephine-Mary Sam, Maryann Fidel, Noor Johnson, Michael K Poulsen, Olivia A Lee, Katie V Spellman, Lisbeth Iversen, Peter Pulsifer, Martin Enghoff |
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Title |
Connecting Top-Down and Bottom-Up Approaches in Environmental Observing |
Type |
Journal |
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Year |
2021 |
Publication |
BioScience |
Abbreviated Journal |
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Volume |
71 |
Issue |
5 |
Pages |
467-483 |
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Programme |
1090,1206 |
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Thesis |
Bachelor's thesis |
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ISSN |
0006-3568 |
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yes |
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Call Number |
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Serial |
8249 |
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Title |
The ? Pictoris b Hill sphere transit campaign – I. Photometric limits to dust and rings |
Type |
Journal |
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Year |
2021 |
Publication |
Astronomy & Astrophysics |
Abbreviated Journal |
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Volume |
648 |
Issue |
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Pages |
A15 |
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Keywords |
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Abstract |
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Programme |
1066 |
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ISSN |
0004-6361, 1432-0746 |
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yes |
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Call Number |
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Serial |
8195 |
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Title |
How king penguins advertise their sexual maturity |
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Journal |
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Year |
2021 |
Publication |
Animal Behaviour |
Abbreviated Journal |
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Volume |
177 |
Issue |
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Pages |
253-267 |
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Keywords |
animal communication mate choice optimal response index ornamentation penguin sexual maturation vocalization |
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Programme |
137,354 |
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Thesis |
Bachelor's thesis |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0003-3472 |
ISBN |
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Approved |
yes |
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Call Number |
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Serial |
7949 |
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Title |
Exploring the interplay between nest vocalizations and foraging behaviour in breeding birds |
Type |
Journal |
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Year |
2021 |
Publication |
Animal Behaviour |
Abbreviated Journal |
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Volume |
180 |
Issue |
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Pages |
375-391 |
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Keywords |
bird communication foraging behaviour reproductive partner vocalization |
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Abstract |
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Programme |
1091 |
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ISSN |
0003-3472 |
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Approved |
yes |
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Call Number |
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Serial |
8760 |
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Title |
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Type |
Journal |
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Year |
2021 |
Publication |
Remote Sensing |
Abbreviated Journal |
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Volume |
13 |
Issue |
10 |
Pages |
1978 |
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Keywords |
arctic cryosphere moraine photogrammetry snow water equivalent snowcover spatial dynamics UAV-SfM |
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Abstract |
The global climate shift currently underway has significant impacts on both the quality and quantity of snow precipitation. This directly influences the spatial variability of the snowpack as well as cumulative snow height. Contemporary glacier retreat reorganizes periglacial morphology: while the glacier area decreases, the moraine area increases. The latter is becoming a new water storage potential that is almost as important as the glacier itself, but with considerably more complex topography. Hence, this work fills one of the missing variables of the hydrological budget equation of an arctic glacier basin by providing an estimate of the snow water equivalent (SWE) of the moraine contribution. Such a result is achieved by investigating Structure from Motion (SfM) image processing that is applied to pictures collected from an Unmanned Aerial Vehicle (UAV) as a method for producing snow depth maps over the proglacial moraine area. Several UAV campaigns were carried out on a small glacial basin in Spitsbergen (Arctic): the measurements were made at the maximum snow accumulation season (late April), while the reference topography maps were acquired at the end of the hydrological year (late September) when the moraine is mostly free of snow. The snow depth is determined from Digital Surface Model (DSM) subtraction. Utilizing dedicated and natural ground control points for relative positioning of the DSMs, the relative DSM georeferencing with sub-meter accuracy removes the main source of uncertainty when assessing snow depth. For areas where snow is deposited on bare rock surfaces, the correlation between avalanche probe in-situ snow depth measurements and DSM differences is excellent. Differences in ice covered areas between the two measurement techniques are attributed to the different quantities measured: while the former only measures snow accumulation, the latter includes all of the ice accumulation during winter through which the probe cannot penetrate, in addition to the snow cover. When such inconsistencies are observed, icing thicknesses are the source of the discrepancy that is observed between avalanche probe snow cover depth measurements and differences of DSMs. |
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1108 |
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yes |
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Call Number |
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Serial |
4442 |
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Year |
2021 |
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Abbreviated Journal |
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Programme |
1151 |
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Approved |
yes |
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Call Number |
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Serial |
6711 |
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Thesis |
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Year |
2021 |
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Abbreviated Journal |
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Volume |
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Pages |
620 pp. |
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Programme |
688,1044 |
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Thesis |
Bachelor's thesis |
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yes |
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Serial |
6439 |
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Author |
Van Hanja J |
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Title |
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Type |
Master 1 |
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Year |
2021 |
Publication |
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Abbreviated Journal |
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Volume |
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Pages |
10 pp |
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1044 |
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yes |
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Serial |
8062 |
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Author |
Meudec L. |
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Type |
Master 2 |
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Year |
2021 |
Publication |
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Abbreviated Journal |
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Volume |
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Pages |
50 pp |
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1044 |
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yes |
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Call Number |
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Serial |
8063 |
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