Waldo R. Tobler
Waldo Rudolph Tobler | |
---|---|
Born | Portland, Oregon, USA | November 16, 1930
Died | February 20, 2018 | (aged 87)
Education | University of Washington |
Scientific career | |
Institutions | University of Michigan University of California, Santa Barbara |
Doctoral students | Sandra Arlinghaus |
Waldo Rudolph Tobler (November 16, 1930 – February 20, 2018) was an
Tobler's career had a major impact on the development of
Tobler held the positions of professor of geography and professor of statistics at University of California, Santa Barbara and was an active Professor Emeritus at the Department of Geography until his death.[21]
Early life
Tobler was born in Portland, Oregon, in 1930 to parents Verner Tobler and Hanny Urech Tobler.[22][23] His father was a Swiss consular employee, and this granted Waldo Tobler both Swiss and United States citizenship.[1][22][24][25] His father's career resulted in moves to Seattle when Waldo Tobler was young, and later to Washington, D.C., when World War II started.[17][23] During World War II, his father's duties included reporting on the treatment of German Prisoners of War held in the United States.[22] Tobler attended junior high school in Chevy Chase, Maryland, while his father was stationed in Washington, D.C..[22]
In May 1945, after the Allied victory in Europe, the family returned to Europe by boat from Boston, Massachusetts to Le Havre France, then by train to Paris, and finally to his parent's native Switzerland.[22] His father was then stationed in Budapest, and Tobler attended boarding school for a year in Zurich, where he learned German, then public high school in St. Gall, and Bern.[22][23] Geographers Pradyumna Prasad Karan and Cotton Mather speculated that this frequent moving in early life may have influenced Tobler's later career choices and passion for geography.[1] Tobler later stated that these early travels may have contributed to a career in geography.[22]
Military service
When Tobler turned 18 in 1948, Switzerland wanted to draft him into the Swiss Army.[22] To avoid the Swiss draft, Tobler traveled to France and joined the United States Army in 1948.[22][17][23][26] A native speaker of English, Swiss German, and French, the military trained him to speak Russian to serve as an interpreter for the Counterintelligence Corps.[23] During his time in the military, he served as both an intelligence analyst and an interpreter in Europe (mostly in Austria) during the Korean War, and participated in interviewing Austrian Prisoners of War who had been released from the Soviet Union.[1][17][27] Tobler described this activity as "little more than industrial espionage."[22] He left the military in 1952 and used his G.I. Bill to attend university.[26]
Education and field
After leaving the military, Tobler attended classes at University of British Columbia in Vancouver Canada.[1][26] Here, Tobler was introduced to Canadian Geographer John Ross Mackay, who Tobler convinced to allow him to take advanced cartography classes as a Freshman.[1][15] After two years at the University of British Columbia, Tobler transferred to the University of Washington in Seattle, from which he received his B.A. (1955), M.A. (1957), and Ph.D. (1961), all in geography.[1][21] Tobler returned for his Ph.D. only after receiving a National Science Foundation fellowship to fund his studies.[22]
At the
Career and academic organizations
Student jobs
While the GI Bill funded much of Tobler's undergraduate courses, he took on several jobs during this time. As an undergraduate student, Tobler was offered positions on research expeditions to the Arctic.[22] However, he turned down this position for a higher-paying job as a mucker in an underground gold mine in British Columbia. Tobler also worked parking cars part-time in Seatle and as a fire lookout in Seattle's Cedar River watershed. Tobler indicated that his choice to work in these positions rather than participate in research expeditions influenced his later specialization in geography. If he had taken the research position, he likely would have been a physical geographer.[22]
After graduating with his B.S. in geography, Tobler was offered a position as a cartographic assistant at the University of Washington, which enabled him to pursue his master's degree.[22]
System Development Corporation
In 1957, after obtaining his master's degree, Tobler began work for the System Development Corporation (SDC), a spinoff of the RAND Corporation, in Santa Monica, California.[22][17][32][33] Here, Tobler worked on developing the Semi-Automatic Ground Environment (SAGE) system, a system that combined both RADAR and computers to detect Soviet bomber aircraft, coordinate interceptor aircraft, and ultimately prevent a Soviet nuclear first strike.[22][33] Tobler's job entailed creating plastic overlay maps for Radar screens to train RADAR operators during exercises.[22][17] These maps were created manually but printed using computers such as the IBM 704.[33] With these, SDC experimented with duplication and generating maps using computers directly. Tobler's experience here influenced his later academic publications and research on computer and analytical cartography.[32][33]
In 1958, the American Association of Geographer's annual meeting was held in Los Angeles, California.[34][35] At this meeting, Tobler arranged a tour of the computer facilities that SDC operated.[22][Note 1] Tobler stated this was his first experience with the AAG.[22]
Pierce County planning commission
After the SDC, Tobler worked for two years for the Pierce County planning commission.[22][36] During this time, he worked to create land-use maps by manually shading with colored pencils.[22] He left this position when after getting an NSF fellowship and returned to school to get his Ph.D.
University of Michigan
After earning his Ph.D. in 1961, Tobler became an Assistant Professor at the University of Michigan.[1][15][37] While at the University of Michigan, Tobler was a member of the Michigan Inter-University Community of Mathematical Geographers (MICMOG), organized by geographer William Bunge, which brought together faculty from both the University of Michigan and Michigan State University.[1][38] These meetings sought to discuss topics related to quantitative geography, and organized joint seminars, which resulted in several discussion papers.[1][39] At the MICMOG meetings, Tobler was given the nickname "Ptobler," as he was "the greatest cartographer since Ptolemy."[38][25] The MICMOG seminars and publications eventually led to the creation of the journal Geographcial Analysis.[1] Tobler remained at the University of Michigan until 1977.[37]
University of California, Santa Barbara
In 1977, Tobler then moved to the University of California, Santa Barbara 1977, to be closer to the West Coast, where he grew up.
Other organizations
Tobler was one of the
Research and publications
While Tobler may have fewer publications than some contemporary geographers, his publications covered a broad range of topics and are considered of exceptional quality.[25] His career in geography profoundly impacted the discipline, and he is perhaps the most influential geographer of the past century.[5] The Library of Congress maintains some of Tobler's early work in "The Waldo Tobler Collection" within the broader"Geographic Information Systems (GIS) & Geospatial Resources," and the UC Santa Barbra Library maintains a collection of his work in "The Waldo Tobler Academic Archives."[5][41]
Cartography
Waldo Tobler described himself as a "geographical cartographer," and his research interests reflect this.[3] He published the first paper on using computers for making maps, established the discipline of analytical cartography, and contributed to the literature around thematic maps.[1] [42][3] His early work, including his dissertation, involved map projections, which he continued to work on throughout his life.[1] Tobler's time working at SDC on the SAGE system influenced his development of both computer and analytical cartography, and it is possible much of his work was kept confidential for some time due to military applications.[33][43]
Map projections
One of Tobler's largest interests, especially early in his career, was map projections, with much of his dissertation focusing on them.[1] He is the inventor of novel and unusual map projections, including the family of Tobler hyperelliptical projections and the first derivation of the partial differential equations for area cartograms.[1][44] He also invented a method for smooth two-dimensional mass-preserving areal data redistribution.
In 1972, Tobler translated and published Johann Heinrich Lambert's 1772 "Notes and comments on the Composition of Terrestrial and Celestial Maps."[1][17] Tobler served as the third author of a book by Qihe Yang and John P. Snyder titled "Map Projection Transformation: Principles and Applications." This book was based on substantial translations by first author Qihe Yang from his work originally published in Chinese, and Tobler stepped in to help revise and assemble the book after Snyder died.[45]
Computer cartography
Using his time and experience on the SAGE system, Tobler built upon the concepts and published his work in academic journals.
Analytical cartography
Tobler's research emphasized mathematical modeling and graphic interpretations in geography through cartography. In 1976, he published a paper titled "Analytical Cartography," which pioneered the discipline of analytical cartography.
Animated mapping
Tobler was among the first to create a true animated map, using animation to show change over time, in his famous 1970 paper, "A Computer Movie Simulating Urban Growth in the Detroit Region."[3][15] While this paper is most often cited as the first time the first law of geography was invoked, the focus of the paper was on animation to show change over time, with the first law an "aside" to this.[3]
Choropleth
Tobler formally introduced the unclassified color scheme for choropleth maps in 1973.[53][54][55] Tobler argued that these maps would increase data density, and avoided many of the issues with Data binning and Statistical classification. There has been significant debate around the best approach to solve this issue with choropleth maps, and most choropleth maps today continue to make use of class breaks.[54][53][55][56] Other approaches to creating classes in choropleth maps include using the Jenks natural breaks optimization, quantile, or equal class intervals.[57][58][59]
Cartograms
Tobler's interest in cartograms stemmed from his interest in map projections.[1][17][4] A chapter of his dissertation was developed for their creation, later adapted and published in the Geographical Review.[1][60] Tobler was among the first to use computers to create cartogram maps, with the rubber sheet method being the first method he proposed for their creation.[4] This method uses rubbersheeting to transform the map coordinates based on the values of interest.[4] He later proposed the "Pseudo-Cartogram" method, which approximates the pycnomirastic solution.[61] Tobler's methods for creating cartograms are still employed, however they have some practical problems in implementation that can sometimes ruin topology.[62] Tobler's methods serve as the basis for many other methods to create them.[1]
Flow maps
Tobler was also concerned with representing flow (due to its involvement with movement as a mechanism of geographic change), and considered them critical to understanding geography.[1] Combining this interest in movement with his knowledge of cartography, Tobler worked on incorporating flow maps to the problem.[63] While crude, the result of this research was that Tobler was the first to develop a software approach to creating flow maps in 1987.[64][63][65] The first demonstration of this technology by Tobler involved mapping the flow of money through the US Federal Reserve to the various US states.[63] In 2003, Tobler released a freeware, Microsoft Windows-based version of his flow representation software Flow Mapper.[66] Tobler's flow mapper software, and similar programs, continue to be built upon and applied to new topics.[63][65]
Spatial interpolation and isorhythmic mapping
Spatial interpolation, which involves estimating values for a spatial surface from sample locations, is a major research focus and application in spatial analysis.[16] Tobler published several studies on different approaches to spatial interpolation, including an extension of bilinear weighted interpolation and other models.[16]
Tobler's pycnophylactic approach to interpolation had early applications to interpolation of surfaces used in isarithmic mapping on computers.[56] Tobler's approach was more straightforward then other methods of the time, and is more appropriate for samples collected at enumeration units like census tracts.[56]
Laws of Geography
In a 1970 paper in the journal Economic Geography where he discussed creating a computer movie of Detroit, Tobler stated, "I invoke the first law of geography: everything is related to everything else, but near things are more related than distant things".[69][18] This text following the colon in his statment, which was not the main focus of the paper, is now known as "Tobler's First Law of Geography," and is probably what Tobler is most famous for.[7][8][9][10] The first law of geography is widely cited and is relevant today, particularly within the sub-discipline of geographic information science.[70][71][72][73] The Geographic Information Science and Technology Body of Knowledge "Model Curricula" in particular emphasizes the importance of the first law in the section on "Metrical relationships: distance and direction."[64] It is considered the theoretical basis of many statistics in spatial analysis, including those involved in cluster analysis and spatial autocorrelation (such as Moran's I).[67][68][74][75] Spatial autocorrelation, and Tobler's 1970 paper, are considered central to modern approaches in technical geography.[76] Tobler's first law is included in the children's book "ABCs of Geography" under the letter "T" for "Tobler."[77] [78]
In a 1999 paper titled "Linear pycnophylactic reallocation comment on a paper by D. Martin," Tobler stated "Philosophically, the phenomenon external to an area of interest affects what goes on in the inside; a sufficiently common occurrence as to warrant being called the second law of geography."[12] In his 2004 paper "On the First law of Geography: A reply," he discussed this concept again.[11][13][14] This has come to be known as Tobler's second law of geography.[13][14] In Tobler's 2004 paper, he discussed other potential candidates for laws of geography, including one proposed by Giuseppe Arbia, R. Benedetti, and G. Espa in a 1996 paper that stated "Everything is related to everything else, but things observed at a coarse spatial resolution are more related than things observed at a finer resolution."[11][79] This has come to be known as Arbia's law of geography.[80]
The laws of geography, particularly Tobler's first law of geography, have been debated heavily in literature, with their status as scientific laws questioned, changes and amendments proposed, exceptions noted, and corresponding defenses by proponents of the laws.[10][81][82][83][84] Tobler weighed in on this debate surrounding his law, and others, in a 2004 article titled "On the First law of Geography: A reply."[11]
The Global Demography Project
The Global Demography Project was conducted by the National Center for Geographic Information and Analysis to map the human population in a series of 5 by 5 minute, or roughly one-kilometer, grids for most of the Earth.[3][85] While this project had serious limitations, largely due to data limitations, it was the finest scale population set produced to that point. The project was later supported by the Columbia University’s Center for International Earth Science Information Network.[3]
Tobler's hiking function
Tobler was an avid hiker, and combined this with his interest flow and movement to generate "Tobler's hiking function," also known as "Tobler’s walking rule."[4][86][87] In this research, Tobler used himself as a subject, and was published the results in a 1993 paper.[86] With this function, he sought to model and predict an average hiker walking speed on various slopes.[86] Researchers have suggested this function has applications in various fields, including self-driving cars, route decisions, and wayfinding apps.[86]
Archeological modeling
While at UC Santa Barbra in 1971, Tobler published models to predict the location of archaeological sites.[15][88] Using the frequency of locations being noted in Cuneiform tablets discussing commercial transactions, he estimated the distance between the towns in Babylonia using a reverse gravity model.[15][88] Many of these predictions were for unknown locations and were proven accurate for at least three known towns; however, more excavation is needed to confirm the remainder of his predictions.[15][88] These ideas serve as the basis for numerous similar computer simulations to model ancient human migration, such as the settlement of Polynesia.[88]
Awards and honors
The University of Zurich, Switzerland, awarded him an honorary doctorate in 1988.[1][6]
The Austrian Academy of Sciences created the Waldo Tobler Awards, which include the Waldo Tobler GIScience Prize and the Young Researcher Award in Geographic Information Science, to recognize Tobler's contributions to geographic research.[5][89] The awards seek to "encourage scientific advancement in the disciplines of Geoinformatics and/or Geographic Information Science."[90] The Waldo Tobler GIScience Prize is issued to individuals who have "exhibited outstanding and sustained contributions to the discipline worthy of inspiring young scientists in Geoinformatics or Geographic Information Science, and has accomplished significant advances in these fields."[90] It has been issued since to David Mark (2016), Thomas Poiker (2017), Helena Mitasova (2018), Michael Batty (2019), Luc Anselin (2022), and Sara Irina Fabrikant (2023).[91] The Young Researcher Award in Geographic Information Science is awarded to "individuals, typically under the age of 35, acknowledging publications enhancing the body of Geoinformatics or GIScience literature."[92] It has since been issued to Filip Biljecki (2015), Xingjian Liu (2016), Song Gao (2016), Chen Min (2017), Pablo Cabrera Barona (2017), Auriol Degbelo (2018), Wei Luo (2018), Franz-Benjamin Mocnik (2019), Yingjie Hu (2019), Laura Knoth (2020),Yuhao Kang (2023 ), and Weiming Huang (2022).[91]
The American Association of Geographers Geographic Information Science and Systems Specialty Group (AAG GISS) and the publication Transactions in GIS hosts an annual session at the AAG conference titled "The Waldo Tobler Distinguished Lecture in GIScience."[42][93] This session honors the legacy of Waldo Tobler by featuring a leading researcher in GIScience.[42] The selected speakers are given the Tobler Lecture Award.[42]
Mark Monmonier noted that Tobler "is one of a small handful of then-living persons accorded one of the 52 biographical entries in the twentieth-century volume of the History of Cartography."[36]
Other awards and honors Tobler received throughout his life include:
- Member of the National Academy of Sciences of the United States
- Honorary Fellow, American Geographical Society (1965)[94]
- Osborn Maitland Miller Medal, American Geographical Society 1989[94][95]
- Meritorious Contributor Medallion, Association of American Geographers, 1971[96]
- Andrew McNally Award, 1986[5]
- ESRI Lifetime Achievement Award, 1999.[5][97]
- AAG Microcomputer Specialty Award, 1993.[5]
- UCGIS Honorary Fellow, 2012[6]
- Archaeological Institute of America Pomerance Award for Scientific Contributions to Archaeology, 2014[48]
- GIS Hall of Fame Inductee, URISA (Urban and Regional Information Systems Association), 2016.[98]
Memorials
Rachel Tobler (Waldo Tobler's widow) and the Geography department at UC Santa Barbra established the "Waldo Tobler Memorial Lecture Fund" in honor of Waldo Tobler.[5][99] The fund helps "to support open lectures in the fields of demography, mapping and cartography, and geographic information science." Rachel Tobler donated Waldo Tobler's collection of papers and research materials to the UCSB Library, which now hosts them as "The Waldo Tobler Academic Archives".[5] On March 6, 2018, UCSB lowered their flag to honor Tobler after his death.[27]
The journal
See also
- Cynthia Brewer – American geographer
- Duane Marble – American geographer
- Geographers on Film – Archival series of interviews with geographers
- George F. Jenks – American geographer and cartographer
- Mei-Po Kwan – Geographer
- Michael Dacey – American geographer and spatial statistician
- Roger Tomlinson – English-Canadian geographer
- Stewart Fotheringham – British-American geographer
- Qualitative geography – Subfield of geographic methods
- Tobler (name) – family name
Notes
- ^ In Tobler's Autobiography, he indicates that the AAG annual meeting occurred in the Spring. However, the schedule published in The Professional Geographer has the 1958 conference in the week of August 17. The 1958 conference schedule does not mention a trip to SDC facilities but does mention a field trip to the "Los Angeles Urban-Industrial Area."
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