00000000nem 2200000za 4500
0019.572735
003CaOODSP
00520230131161133
006m    go  c f      
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008150406s2012    onc    bd a  fo 0   eng d
020 |a978-1-100-19878-1
040 |aCaOODSP|beng
041 |aeng|bfre
043 |an-cn-nu
0861 |aM183-1/66-2011E-PDF
24500|aSeasonal surface displacement derived from InSAR, Iqaluit, Nunavut |h[electronic resource] / |c[by] N. Short ... [et al.].
250 |aPreliminary version
255 |aScale 1:15,000
260 |aOttawa : |bNatural Resources Canada, |cc2012.
300 |a1 map : |bcol.
4901 |aCanadian geoscience map ; |vNo. 66
500 |aIncludes a legend.
504 |aIncludes bibliographical references.
5203 |a"This map shows the spatial distribution of the relative ground surface displacement between the major terrain units during one summer in the area of Iqaluit. The ground displacement was derived using interferometric synthetic aperture radar (InSAR) data for the summer of 2011. Stable ground represents locations where either no vertical change was calculated or where displacement was within the expected range of error (± 0.5 cm). Very low, low, and moderate downward displacement represents surface lowering on the order of 0.5 to 2, 2 to 4.5, and 4.5 to 8.5 cm, respectively. Upward displacement represents a surface rise of 0.5 to 1.5 cm. Areas of no data result from a loss of interferometric coherence. These are typically water and other relatively smooth surfaces from which there is no radar return, or where there has been significant ground surface disturbance and the radar returns cannot be correlated. The InSAR results correspond well with the expected displacement associated with the characteristics of the major terrain units. The displacement reflects seasonal settlement caused by thawing of ice in the active layer or in the near-surface permafrost"--Abstract.
546 |aIncludes abstract in French.
590 |a13-41|b2013-10-11
69207|2gccst|aGeological maps
69207|2gccst|aGeomorphology
69207|2gccst|aPermafrost
7001 |aShort, N. H., |d1975-
7101 |aCanada. |bNatural Resources Canada.
7102 |aGeological Survey of Canada.
830#0|aCanadian geoscience map ;|vNo. 66.|w(CaOODSP)9.506260
85640|qPDF|s65.92 MB|uhttps://publications.gc.ca/collections/collection_2013/rncan-nrcan/M183-1-66-2011-eng.pdf
85640|qHTML|sN/A|uhttps://doi.org/10.4095/289606
986 |a289606