223:. Given this high number of glaciers, Chinn could see that to calculate the total volume of glacial ice in the Southern Alps, it was impossible to measure every glacier. By taking a sub-sample of 51 'index glaciers' Chinn could estimate their ice volumes from aerial photographs of the end of summer snowline (EOSS) elevation. This pioneering method meant that Chinn and colleagues could provide an annual summary of ice volume. Today, the snowline data set consists of 41 years of climate data and climbing. In 2008, Chinn co-authored a paper noting that – since this initial survey – New Zealand's glaciers had lost 15 percent of their total volume. A subsequent publication in 2014 noted that the loss of ice had now grown to 34 percent.
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200:. The Ministry of Works were primarily interested in water resources for hydroelectric power schemes in the Mackenzie Basin. A major source of stored water for power generation existed in the form of the Tasman Glacier, New Zealand's longest body of ice (28 kilometres (17 mi) as of 2018). From 1965 to 1970 Chinn, along with several others carried out a series of mass balance estimates of the Tasman Glacier, using traditional snow accumulation and
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alpine glacier cirques, either way, measuring the water volume into and out of, a basin was the metric to yield information on the earth's stored water. In 1965 New
Zealand was invited by the IHD to participate in the programme. By 1967 Chinn identified the small Ivory Glacier as an ideal candidate to carry out mass balance studies. Located at the head of the
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basin status. Between 1968 and 1985, the Ivory
Glacier programme generated several reports and numerous papers on the mass balance, meteorology and glacial erosion rates During the 1970s Chinn also established a series of rain gauges across the width of the Southern Alps. The rain gauge 'transect'
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catchment Chinn's thesis was supervised by
Professor Max Gage. In 1977, Chinn also took part in the 'World Glacier Inventory' with the goal of documenting Earth's glaciers. The inventory required a suite of parameters be used including; glacier area, elevation range, ice volume and photographic
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poles. In 1965 UNESCO coincidentally established the
International Hydrological Decade (IHD) which aimed to quantify the water resources of contributing nations. The IHD criteria stipulated each nation establish a 'basin analysis' for water resources. Basins could be shallow river catchments or
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produced a remarkable rainfall profile across the alps with a maximum of 18 metres (59 ft) of rain per annum in the Cropp Basin, adjacent to the Ivory
Glacier. By 1975 Chinn had completed an MSc thesis on the glacial geomorphology of the upper
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Griffiths, G.A. and McSaveney, M.J. 1983. Distribution of mean annual precipitation across some steepland regions of New
Zealand. New Zealand Journal of Science 26:197–209.
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Chinn, T. 2004. Glaciers – perennial snow and ice. In: Freshwaters of New
Zealand. NZ Hydrological Society and New Zealand Limnological Society
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Anderton, P.W. and Chinn, T.J. 1978. Ivory
Glacier, New Zealand, an I.H.D. Representative basin study. Journal of Glaciology, 20(82):67–84.
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Chinn was awarded a Doctor of
Science (DSc) degree in 2007 from his alma mater and in 1998 a small glacier in Antarctica was named
242:. From the early 2000s Chinn became a consultant under the name Alpine and Polar Processes Consultancy, working from his home at
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180:, Chinn quickly learned the elements of river gauging and meticulous record keeping. Following a training period with the
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656:"Crown Research Institutes Act 1992 No 47 (As at 12 November 2018), Public Act Contents – New Zealand Legislation"
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in his honour. In 2016 The
International Glaciological Society awarded Chinn the Richardson Medal.
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Chinn was fascinated by glaciers from an early age, having grown up near the farming settlement of
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Chinn, T.J. 1979. How wet is the wettest of the wet West Coast? NZ Alpine Journal 32: 85–87
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Chinn, T.J.H. 1972. Snow Hydrology – what is it? Soil and Water. September–December 1972.
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Salinger, Jim; Chinn, Trevor; Willsman, Andrew; Fitzharris, Blair (September 2008).
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During the early 1960s Chinn worked for the North Canterbury Catchment Board, near
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164:. Chinn was the second of four children to Alfred and Myrtle (née Sweney) Chinn.
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Late quaternary snowlines and cirque moraines within the Waimakariri watershed
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Chinn's career spanned more than 60 years, working in New Zealand and
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records. At the time, 3140 glaciers existed in New Zealand's
604:"New Zealand's Southern Alps have lost a third of their ice"
356:"Life story: Trevor Chinn, the man who saved glaciology"
192:. This new job was with the Ministry of Works, based in
116:(9 August 1937 – 20 December 2018) was a New Zealand
602:; Fitzharris, Blair; Chinn, Trevor (July 29, 2014),
631:"Glaciers and glaciation – Glaciers in New Zealand"
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374:Satellite image atlas of glaciers of the world
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393:Otago Daily Times Saturday, February 16, 2019
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335:"Pioneering NZ scientist Trevor Chinn dies"
307:"Pioneering NZ scientist Trevor Chinn dies"
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433:"Ministry of Works and Development staff"
120:, who conducted extensive surveys of the
635:Te Ara – the Encyclopedia of New Zealand
629:McSaveney, Eileen (24 September 2007).
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563:"Glacier response to climate change"
23:New Zealand glaciologist (1937–2018)
710:21st-century New Zealand scientists
705:20th-century New Zealand scientists
160:club, and graduated with a BSc in
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720:People from the West Coast Region
140:(about eight kilometers north of
93:Ministry of Works and Development
234:Geological Survey (which became
715:University of Canterbury alumni
548:"End of Summer Snowline Survey"
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473:"Ivory Lake Hut: Remote Huts"
406:Frankham, James (June 2014).
368:Chinn, Trevor J.H., (1988),
458:Water and man: a world view
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700:New Zealand glaciologists
246:township, Central Otago.
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513:Chinn, T. J. H. (1975).
154:University of Canterbury
68:University of Canterbury
370:Glaciers of New Zealand
176:. In his role as field
114:Trevor James Hill Chinn
670:"The Richardson Medal"
567:Water & Atmosphere
455:Nace, Raymond (1969).
412:New Zealand Geographic
312:The New Zealand Herald
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150:Franz Josef Glacier
358:. 18 January 2019.
315:. 21 December 2018
284:. 22 December 2018
250:Awards and honours
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216:Waimakariri River
188:and in the wider
182:Ministry of Works
156:Chinn joined the
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75:Scientific career
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39:9 August 1937
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408:"Living Ice"
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221:South Island
174:Christchurch
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118:glaciologist
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89:Institutions
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56:(2018-12-20)
30:Trevor Chinn
695:2018 deaths
690:1937 births
640:27 December
615:27 December
584:27 December
417:27 December
319:27 December
288:27 December
236:GNS Science
178:hydrologist
148:, near the
684:Categories
519:(Thesis).
262:References
244:Lake Hāwea
228:Antarctica
132:Early life
84:Glaciology
43:1937-08-09
579:1172-1014
461:. UNESCO.
339:NZ Herald
281:The Press
202:ablation
158:tramping
142:Whataroa
122:glaciers
162:geology
138:Te Taho
41: (
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211:cirque
194:Timaru
168:Career
81:Fields
573:(3).
372:, in
144:) in
642:2018
617:2018
586:2018
575:ISSN
419:2018
378:ISBN
321:2018
290:2018
240:NIWA
232:DSIR
102:NIWA
97:DSIR
51:Died
36:Born
521:doi
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
