## 10 Bibliometric Analysis of Water-Related Research in Bangladesh
(2000), discussed arsenic contamination in Bangladesh and is the second most cited article, which was published in _Bulletin of the World Health Organization_, with 1429 citations and 64.96 citations per year [126]. Flooding is a major problem in Bangladesh, and an article on coastal flooding by [PERSON] et al. (2015) (included Bangladesh flooding) is listed sixth in terms of total citations; however, it has received the second-highest total citations per year [127]. The most local cited documents can be seen in Table S2. Local citations present citations within the 4177 documents whereas global citations show actual Scopus citations. Table 7 lists the top 15 authors with their affiliation, country, number of articles, H-index, g-index, total citations, and citations per paper in the water-related studies in Bangladesh. Twelve of these authors were from Bangladesh and the USA. The other three authors were from Sweden, Malaysia, and China. The most productive author was [PERSON] (University of Dhaka) from Bangladesh who has published 151 articles on Bangladesh water issues. [PERSON] from the USA has the highest total number of citations as an author: he has published 109 articles on water issues in Bangladesh (with 8637 total citations). [PERSON], who is from China, has the highest citations per paper; every paper on Bangladesh water research is cited nearly 100 times. Figure 4 illustrates the most frequently used keywords in water-related studies in Bangladesh. The bigger size of a keyword and a bold font emphasize the frequency and strength of the keyword on the water field in Bangladesh. The word cloud visually represents the most frequent words used in relevant studies and helps to identify the more (or less) important ones. The most dominant keywords in water-related research publications for Bangladesh were found to be Bangladesh (\(n\) = 5355), arsenic (\(n\) = 2372), drinking water (\(n\) = 1240), water supply (\(n\) = 1191), climate change (\(n\) = 1082), human (\(n\) = 997), female (\(n\) = 936), male (\(n\) = 795), humans (\(n\) = 785), and groundwater (\(n\) = 767). The most used keywords dynamics (based on annual occurrences and cumulative occurrences) show that 'climate change' has the steepest trend after 2010 (Figures S4 and S5). \begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline \multicolumn{4}{c}{**Corresponding Author’s Countries**} & \multicolumn{6}{c}{**Most Cited Countries**} \\ \hline
**R** & **Country** & **Articles** & **Freq (\%)** & **SCP** & **MCP** & **R** & **Country** & **TC** & **AAC** \\ \hline
1 & Bangladesh & 1085 & 31.00 & 619 & 466 & 1 & USA & 35,069 & 51.57 \\
2 & USA & 680 & 19.43 & 248 & 432 & 2 & Bangladesh & 16,808 & 15.49 \\
3 & UK & 287 & 8.20 & 111 & 176 & 3 & UK & 13,611 & 47.43 \\
4 & Australia & 245 & 7.00 & 79 & 166 & 4 & India & 7556 & 48.75 \\
5 & Japan & 243 & 6.94 & 105 & 138 & 5 & Japan & 6871 & 28.28 \\
6 & India & 155 & 4.43 & 110 & 45 & 6 & Australia & 6020 & 24.57 \\
7 & China & 95 & 2.71 & 27 & 68 & 7 & Sweden & 3900 & 56.52 \\
8 & The Netherlands & 89 & 2.54 & 23 & 66 & 8 & Switzerland & 2989 & 106.75 \\
9 & Germany & 84 & 2.40 & 32 & 52 & 9 & Canada & 2687 & 35.83 \\
10 & Canada & 75 & 2.14 & 33 & 42 & 10 & Germany & 2166 & 25.79 \\
11 & Sweden & 69 & 1.97 & 11 & 58 & 11 & The Netherlands & 1907 & 21.43 \\
12 & Malaysia & 62 & 1.77 & 25 & 37 & 12 & China & 1888 & 19.87 \\
13 & Belgium & 28 & 0.80 & 8 & 20 & 13 & Malaysia & 1244 & 20.06 \\
14 & Switzerland & 28 & 0.80 & 10 & 18 & 14 & Belgium & 370 & 13.21 \\
15 & Thailand & 25 & 0.71 & 8 & 17 & 15 & Thailand & 360 & 14.4 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Top 15 productive countries concerning Bangladesh water-research-related publications (R is the rank based on the number of articles. SCP and MCP refer to single- and multiple-country publications, respectively. AAC is the average article citation).