geomorphologist
Geomorphology (from Ancient Greek: , ', "earth"; , ', "form"; and , ', "study") is the scientific study of the origin and evolution of topographic and bathymetric features created by physical, chemical or biological processes operating at or n ...
and
geographer
A geographer is a physical scientist, social scientist or humanist whose area of study is geography, the study of Earth's natural environment and human society, including how society and nature interacts. The Greek prefix "geo" means "earth" a ...
who pioneered quantitative geomorphological approach on mass movements and erosion. He was the first to make a comprehensive study on
avalanche boulder tongue An avalanche boulder tongue is an accumulation of debris produced by snow avalanches. Well-developed avalanche boulder tongues usually develop below avalanche gullies due to successive avalanches over a long time span. The avalanche boulder tongues ...
s. Most of Rapp's works were made in the
Scandinavian mountains
The Scandinavian Mountains or the Scandes is a mountain range that runs through the Scandinavian Peninsula. The western sides of the mountains drop precipitously into the North Sea and Norwegian Sea, forming the fjords of Norway, whereas to the ...
and
Spitsbergen
Spitsbergen (; formerly known as West Spitsbergen; Norwegian: ''Vest Spitsbergen'' or ''Vestspitsbergen'' , also sometimes spelled Spitzbergen) is the largest and the only permanently populated island of the Svalbard archipelago in northern Norw ...
Abisko
Abisko (; se, Ábeskovvu) is a village in Sápmi (Lapland (Sweden), Lapland), in northern Sweden, roughly 250 km within the Arctic Circle, and near Abisko National Park, located 4 km west of the village. It had 85 inhabitants as of 20 ...
and
Kebnekaise
Kebnekaise (; from Sami or , "Cauldron Crest") is the highest mountain in Sweden. The Kebnekaise massif, which is part of the Scandinavian mountain range, has two main peaks. The glaciated southern peak used to be the highest at above sea leve ...
.
Studying under
Filip Hjulström
Henning Filip Hjulström (6 October 1902 – 26 March 1982) was a Swedish geographer. Hjulström was professor of geography at Uppsala University from 1944, and in 1949, when the subject of geography was split, he became professor of Physical ...
, Rapp got his
Ph.D.
A Doctor of Philosophy (PhD, Ph.D., or DPhil; Latin: or ') is the most common degree at the highest academic level awarded following a course of study. PhDs are awarded for programs across the whole breadth of academic fields. Because it is a ...
at
Uppsala University
Uppsala University ( sv, Uppsala universitet) is a public university, public research university in Uppsala, Sweden. Founded in 1477, it is the List of universities in Sweden, oldest university in Sweden and the Nordic countries still in opera ...
in 1961, and was appointed professor of
physical geography
Physical geography (also known as physiography) is one of the three main branches of geography. Physical geography is the branch of natural science which deals with the processes and patterns in the natural environment such as the atmosphere, h ...
at
Lund University
, motto = Ad utrumque
, mottoeng = Prepared for both
, established =
, type = Public research university
, budget = SEK 9 billion LUM - Lunds universitet meddelar - nr 11 1997: Geografin 100-årsjubilerar i Lund "Geography celebrates 100 years in Lund" In 1980, he was elected a member of the
Royal Swedish Academy of Sciences
The Royal Swedish Academy of Sciences ( sv, Kungliga Vetenskapsakademien) is one of the Swedish Royal Academies, royal academies of Sweden. Founded on 2 June 1739, it is an independent, non-governmental scientific organization that takes special ...