List of glaciologists
Table:
Name	Birth	Death	Contributions

Louis Agassiz	1807	1873	First to scientifically propose the existence of past ice ages

Sigurður Þórarinsson	1912	1983

Jens Esmark	1763	1839	Extension of past glaciations

James David Forbes	1809	1868	Concluded that glaciers were viscous bodies

Louis Lliboutry	1922	2007	Formation of penitentes , surveyed Andean glaciers

Mark Meier	2012	Expert on sea level rise due to melting glaciers ; Director of the Institute of Arctic and Alpine Research ( INSTAAR ) from 1985 to 1994

Louis Rendu	1789	1859	Theorized on glacier motion

Valter Schytt	1919	1985	Studied Storglaciären in northern Sweden

Wilhelm Sievers	1860	1921	Documented South American ice ages

John Tyndall	1820	1893	Studied glacier motion

Ignaz Venetz	1788	1859	Suggested the existence of past ice ages

Based on the table together with the relevant paragraphs below.

Solve the question: What book on glacier motion was written by the glaciologist who lived from 1789-1859 ? Provide just your answer in a JSON object {"answer": "YOUR ANSWER"}. Base your answer solely on the given information.

Jean Louis Rodolphe Agassiz ( /ˈæɡəsi/ ; French : [ aɡasi ] ; May 28 , 1807 - December 14 , 1873 ) was a Swiss biologist and geologist recognized as an innovative and prodigious scholar of Earth 's natural history . Agassiz grew up in Switzerland . He received doctor of philosophy and medical degrees at Erlangen and Munich , respectively . After studying with Cuvier and Humboldt in Paris , Agassiz was appointed professor of natural history at the University of Neuchâtel . He emigrated to the United States in 1847 after visiting Harvard University . He went on to become professor of zoology and geology at Harvard , to head its Lawrence Scientific School , and to found its Museum of Comparative Zoology . Agassiz is known for his regimen of observational data gathering and analysis . He made vast institutional and scientific contributions to zoology , geology , and related areas , including writing multivolume research books running to thousands of pages . He is particularly known for his contributions to ichthyological classification , including of extinct species such as megalodon , and to the study of geological history , including to the founding of glaciology . In the 20th and 21st centuries , Agassiz 's resistance to Darwinian evolution , belief in creationism , and the scientific racism implicit in his writings on human polygenism have tarnished his reputation , and led to controversies over his legacy .
An ice age is a long period of reduction in the temperature of the Earth 's surface and atmosphere , resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers . Earth 's climate alternates between ice ages and greenhouse periods , during which there are no glaciers on the planet . Earth is currently in the Quaternary glaciation , known in popular terminology as the Ice Age . Individual pulses of cold climate within an ice age are termed glacial periods ( or , alternatively , glacials , glaciations , glacial stages , stadials , stades , or colloquially , ice ages ) , and intermittent warm periods within an ice age are called interglacials or interstadials , with both climatic pulses part of the Quaternary or other periods in Earth 's history . In the terminology of glaciology , ice age implies the presence of extensive ice sheets in both northern and southern hemispheres . By this definition , we are in an interglacial period - the Holocene . The amount of heat trapping gases emitted into Earth 's oceans and atmosphere are predicted to prevent the next glacial period , which otherwise would begin in around 50,000 years , and likely more glacial cycles .
Sigurdur Thorarinsson ( Icelandic : Sigurður Þórarinsson ) ( January 8 , 1912 - February 8 , 1983 ) was an Icelandic geologist , volcanologist , glaciologist , professor and lyricist . He is considered a pioneer in the field of tephrochronology , and he made significant contributions in many areas of geology , especially volcanology and glaciology , both in Iceland and abroad .
Jens Esmark ( 31 January 1763 - 26 January 1839 ) was a Danish-Norwegian professor of mineralogy who contributed to many of the initial discoveries and conceptual analyses of glaciers , specifically the concept that glaciers had covered larger areas in the past .
James David Forbes FRS FRSE FGS ( 1809-1868 ) was a Scottish physicist and glaciologist who worked extensively on the conduction of heat and seismology . Forbes was a resident of Edinburgh for most of his life , educated at its University and a professor there from 1833 until he became principal of the United College of St Andrews in 1859 . He invented the seismometer in 1842 .
Louis Lliboutry ( born 19 February 1922 in Madrid ; died on 21 October 2007 in Grenoble ) was a French glaciologist , geophysicist , and mountaineer . While in Chile in the early 1950s , he analysed and explained the formation of snow penitents in the Andes , which marked his first contribution to glaciology . He founded in Grenoble in 1958 the Laboratory of Alpine Glaciology and headed it for 25 years ; he also set up at that period a pioneering syllabus in geophysics . His contributions to mechanics of viscous media ( such as ice and the Earth 's mantle ) and to geodynamics are internationally acknowledged .
Penitentes , or nieves penitentes ( Spanish for penitent-shaped snows ) , are snow formations found at high altitudes . They take the form of elongated , thin blades of hardened snow or ice , closely spaced and pointing towards the general direction of the sun . The name comes from the resemblance of a field of penitentes to a crowd of kneeling people doing penance . The formation evokes the tall , pointed habits and hoods worn by brothers of religious orders in the Processions of Penance during Spanish Holy Week . In particular the brothers ' hats are tall , narrow , and white , with a pointed top . These spires of snow and ice grow over all glaciated and snow-covered areas in the Dry Andes above 4,000 metres or 13,120 feet . They range in length from a few centimetres to over 5 metres or 16 feet .
Mark F. Meier ( 1925 - November 25 , 2012 ) was an American glaciologist who was considered a leading expert on the study of rising sea levels due to the melting of glaciers . Meier was the Director of the Institute of Arctic and Alpine Research ( INSTAAR ) from 1985 to 1994 and remained the institute 's director emeritus until his death in 2012 . He was also a professor of geological sciences at the University of Colorado - Boulder . Meier was born and raised in Iowa . He resided in Boulder , Colorado , since 1985 . In 1956 , Meier founded the U.S. Geological Survey 's department of glaciology . He obtained doctorate in 1957 from the California Institute of Technology . Meier served as the director of the U.S. Geological Survey 's Project Office of Glaciology in Tacoma , Washington , until he became the director of INSTAAR in 1985 . Meier was one of the first glaciologists to use remote sensing to study glaciers and rates of melting . He headed several studies of tidewater glacier dynamics in the U.S. state of Alaska . Meier organized the systematic measurement and assessment of glacier mass balance within North America to mark the International Geophysical Year and International Hydrological Decade , which was observed from 1965 to 1975 . His numerous recognitions and awards included the Seligman Crystal from the International Glaciological Society in 1985 , the Robert E. Horton Medal in 1996 , three medals from the USSR Academy of Sciences ( now the Russian Academy of Sciences ) and the United States Department of the Interior 's Distinguished Service Award .
The Institute of Arctic and Alpine Research ( INSTAAR ) is a scientific institute that is part of the University of Colorado Boulder . Its research mission is to [ develop ] scientific knowledge of physical and biogeochemical environmental processes at local , regional and global scales , and appl [ y ] this knowledge to improve society 's awareness and understanding of natural and anthropogenic environmental change . INSTAAR is affiliated with multiple departments and programs at CU-Boulder , including Anthropology , Atmospheric and Oceanic Sciences , Certificate in Oceanography , Civil , Environmental and Architectural Engineering , Ecology and Evolutionary Biology , Geography , Geological Sciences , and Hydrologic Sciences . Most INSTAAR scientists and all graduate students performing research at INSTAAR are also rostered in a CU department or program . James W. C. White is the current director of INSTAAR .
Louis Rendu ( December 9 , 1789 in Meyrin - August 28 , 1859 ) was French Roman Catholic bishop of Annecy and a scientist . He was the author of Theorie des glaciers de la Savoie , an important book on the mechanisms of glacial motion . The Rendu Glacier , Alaska , U.S. and Mount Rendu , Antarctica are named for him . He was a founding member of the Académie des sciences , belles-lettres et arts de Savoie . The following are a few of his ethnological and religious-themed works :
Glacial motion is the motion of glaciers , which can be likened to rivers of ice . It has played an important role in sculpting many landscapes . Most lakes in the world occupy basins scoured out by glaciers . Glacial motion can be fast ( up to 30 m/day , observed on Jakobshavn Isbræ in Greenland ) or slow ( 0.5 m/year on small glaciers or in the center of ice sheets ) , but is typically around 25 cm/day .
Stig Valter Schytt ( 17 October 1919 - 30 March 1985 ) was a Swedish glaciologist .
Storglaciären ( Swedish for The Grand Glacier ) is a glacier in Tarfala Valley in the Scandinavian Alps of Kiruna Municipality , Sweden . The glacier is classified as polythermal having both cold and warm bottom temperatures . It was on Storglaciären that the first glacier mass balance research program began ( immediately after World War II ) , which continues to the present day ; this is the longest continuous study of its type in the world . Storglaciären has had a cumulative negative mass balance of -17 m between 1946-2006 . The program began monitoring the Rabots Glaciär in 1982 , Riukojietna in 1985 , and Mårmaglaciären in 1988 . All three of these glaciers have had a strong negative mass balance since monitoring began . For the purpose of studying Storglaciären and nearby glaciers , Stockholm University operates the Tarfala research station in the Kebnekaise region of northern Sweden .
Friedrich Wilhelm Sievers ( 3 December 1860 - 11 June 1921 ) was a German geologist and geographer . He served as professor of geography at the University of Giessen . His field work focussed on South America , and his Allgemeine Länderkunde was for several decades a standard work on world geography .
John Tyndall FRS ( /ˈtɪndəl/ ; 2 August 1820 - 4 December 1893 ) was a prominent 19th-century Irish physicist . His initial scientific fame arose in the 1850s from his study of diamagnetism . Later he made discoveries in the realms of infrared radiation and the physical properties of air , proving the connection between atmospheric CO2 and what is now known as the greenhouse effect in 1859 . Tyndall also published more than a dozen science books which brought state-of-the-art 19th century experimental physics to a wide audience . From 1853 to 1887 he was professor of physics at the Royal Institution of Great Britain in London .
Ignaz ( Ignace ) Venetz ( 1788 - 1859 ) was a Swiss engineer , naturalist , and glaciologist ; as one of the first scientists to recognize glaciers as a major force in shaping the earth , he played a leading role in the foundation of glaciology .