Ars Geophysica

New Beginnings

Posted by in Craters of The Moon

PRELIMINARIES  This is the first of a series of blog posts I’ll be writing, detailing the work I’ll be doing with Dr. Catherine Neish on the subject of characterizing and comparing the surface roughness of terrestrial lava flows at Craters of the Moon National Monument with that of lunar impact melt flows. There are 4 primary components to the problem: radar, LIDAR, surface roughness, and volcanics. I began by getting up to speed on the background and literature of the problem . The obvious starting point was Catherine’s recent paper “Terrestrial…read more

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My experience with My group’s final project

Posted by in GEOB270

My discourse below is a reflection upon what I learned in the final project of the course, having co-written the report “Assessment of the Potential Geothermal Resource of British Columbia*”: It is a well known fact that despite the fact that Canada possesses plentiful geothermal resources (see the report “Geothermal Resource Potential of Canada” (2012) for validation of this fact), there currently exist precisely zero sites of geothermal electricity production. With geothermal power being one of the few renewable energy sources capable of providing consistent baseload power, and without occasionally…read more

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Lab 5: Environmental Impact Assessment

Posted by in GEOB270

Skills Acquired: Gained familiarity with BC Government TRIM data (Terrestrial Resource Information Management) Employed tools including clipping, reclassification, merging, buffering, and spatial joining Made selections by attributes in order to statistically quantify areal percentages of ecosystem affected Exercised technical writing skills for the purpose of a realistic environmental consultancy scenario   Ethics and Environmental Projects I personally believe, my perspective being aligned with that which I espoused in the memo below, that the Garibaldi at Squamish Project is unfeasible, given that the project as presently proposed has been quantitatively shown…read more

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Lab 4: Housing Affordability

Posted by in GEOB270, Uncategorized

Skills Acquired: Calculated housing affordability in Vancouver and Ottawa Experimented with varying methods of reclassification for housing affordability data (natural breaks, equal interval, standard deviation, manual breaks) Classified Vancouver and Ottawa into affordability zones, ranging from “affordable” to “severely unaffordable” Learned about rules governing the delineation of Census Tracts (CTs) in Canada   Classifying Housing Affordability: A Good Proxy for Livability? What are the housing affordability rating categories? Who determined them and are they to be ‘trusted’? (You have seen in the previous map how different classification breaks produce very…read more

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Lab 3: Planning for A Tsunami

Posted by in GEOB270

Skills Acquired: Employed buffer proximity analysis, reclassification, conversion between raster and vector data types, polygon overlay via intersection, and clipping Calculated land use statistics from layer attribute tables Produced a map displaying regions of the City of Vancouver at potential risk of inundation from a tsunami Proportion of Total Area of The City of Vancouver prone to tsunamis For each of the layers Vancouvermask (total) and Vancouver_danger (proportion at risk), I opened the attribute table, selected statistics, and summed the areas – calculate the area ratio Area(Vancouvermask) = 131033339.95 m^2…read more

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Lab 2: Coordinate Systems and Spatial Data Modles

Posted by in GEOB270

Skills Acquired: Gained familiarity with geographic properties of GIS data (coordinate systems, datums, etc.) Aligned spatial data via proper spatial referencing Evaluated inherent potential pitfalls in interpretation owing from raster resolution and the mixed pixel problem (MPP) Analyzed and manipulated remote sensing images   Fixing Misaligned and improperly referenced spatial data When there are thousands of map projections out there preserving every combination of area, shape, angle, distance, and direction you can conceive of, it’s little wonder that spatial data can end up hopelessly mangled – misaligned, out of place,…read more

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