Bifrost: Flooding in Earth and Related Environmental Sciences

The following query was used:

hsv:(Earth and Related Environmental Sciences) AND ((flooding) OR (flood) OR (översvämning))

In the dataset, we have an earliest publication from year 1935: Studies of the morphological activity of rivers as illustrated by the River Fyris by Hjulström, Filip. Since then up to year 2025, 5070 different researchers have authored 1117 publications.

Subject categories

Explore which subject categories are represented in the dataset. Note that publications usually have several categories. Therefore, it is the rule, not the exception, that the percentages together constitute more than 100%. If x is 100% and y is 15%, it means that all publications have been categorized as x, and of them, 15% have also been categorized as y.

Level 1

Level 2

Level 3

During 1935–2025, 18.8% (210 of 1 117) category assignments lack classification at this level.

Publication types

Number of scientific publications per type over years

Scientific and other publications over years

Scientific includes all publication types from the table above. Peer reviewed is marked out (red dots) if it is in the data. Other is popular science, debate articles, and the like.

Journals: peer reviewed and other scientific

Journals: popular science, debate etc

Researchers

There are a total of 5070 researchers in the dataset. They are listed below, sorted by “scientific productivity”.

Co-authorship

Summary

Modularity: 0.789

Modularity is a measure of how well the network can be divided into groups. Values close to 1 indicate strong groupings, while values close to 0 suggest that the network is more cohesive without clear groups.

Mean degree: 4.9

Mean betweenness: 131.9

Individual network statistics

‘Co-authored texts’ indicates the number of texts the author has written together with one or more co-authors.

Network statistics show central nodes in the collaboration network. Degree is the number of direct collaborations, while betweenness shows which authors act as bridges between different groups.

Note: Degree shows the number of unique collaboration partners with SwePub-ID. This may differ from ‘Co-authors, tot.’ which includes all co-authors regardless of whether they have an ID. Authors whose co-authors lack SwePub-ID have no network values.

Most common co-authorships

The first co-author listed is the one the author has written with the most times. ‘Number’ indicates the number of co-authored texts with the author. Up to four additional co-authors are listed, in descending order of co-authorship.

Network of co-authors

Below is a visualization of the 53 different groupings in the dataset. The colors indicate different groups.

Group membership

Author names to the right; group ID to the left. You can see the size of the groups and the most common keywords of the groups in the tables that follow. A combination of search and sorting can be used to further explore group membership.

Group size

Group keywords

The table is limited to a) groups with more than 3 members; b) groups with at least one keyword in any publication; c) the ten most used keywords per group.

Higher education institutions

Keywords

Colors indicate frequency quantiles within this dataset.

Red: Highest frequency (6.8-5.46%); Blue: High frequency (5.46-4.12%); Green: Medium frequency (4.12-2.77%); Orange: Low frequency (2.77-1.43%); Gray: Lowest frequency (1.43-0.09%)

Top 10 keywords

Word frequency

The frequency of individual words in the dataset as a whole. Words have been taken from title, abstract, and keywords. “Frequency” is total uses, including the number of mentions in the same text, while “publications” is the number of unique texts where the word appears.

## Notice: The dataset contains 20240 rows. For best performance, only the 8000 with the highest frequency are displayed in the table.

If you want to examine the frequency of some specific words more closely, enter them in the variable ‘to_stem’.

Theses

The first doctoral thesis in the dataset is from 1935, Studies of the morphological activity of rivers as illustrated by the River Fyris by Hjulström, Filip. Between that and 2025, a total of 81 theses have been registered. Of these, 68 are doctoral theses and 13 are licentiate theses.

Supervisors

Opponents

Publications

A complete list of the search results. Initially sorted by year (descending) and author (ascending). Change the order at the column header. Search can be done over all displayed fields.