Table 1.
Data sources of the ESRC Dataset.
| No. | Type | Source | n | River basin (region) | Period |
|---|---|---|---|---|---|
| 1 | Database | ArcticGRO20 | 151 | Lena/Kolyma | 2003–2006 |
| 2009–2019 | |||||
| 2 | Database | GLORICH21 | 8 | Lena/Yana/Indigirka | 1991 |
| 1995–1997 | |||||
| 3 | Literature | Georgiadi, et al.22 | 2 | Lena | 2010 |
| 2018 | |||||
| 4 | Literature | Huh, et al.24 | 63 | Lena/small rivers from eastern Siberia | 1991–1997 |
| 5 | Literature | Kuzmin, et al.23 | 3 | Angara | 1950–1955 |
| 1970–1984 | |||||
| 1997–2007 | |||||
| 6 | Literature | Huh and Edmond25 | 51 | Angara/Selenga-Baikal/Lena | 1991 |
| 1993–1994 | |||||
| 1996–1997 | |||||
| 7 | Literature | Huh, et al.26 | 80 | Lena/Yana/Indigirka/Kolyma/other small rivers from eastern Siberia | 1991–1992 |
| 1995–1997 | |||||
| 8 | Literature | Berkin, et al.27 | 6 | Angara/Selenga-Baikal | 2001 |
| 9 | Literature | Bochkarev17 | 391 | Angara/Selenga-Baikal/Lena | Before 1955 |
| 10 | Literature | Grebenshchikova, et al.28 | 22 | Angara | Before 1955 |
| 1957–1961 | |||||
| 1984–1995 | |||||
| 1997–2009 | |||||
| 11 | Literature | Sidorov29 | 7 | Lena | 1985–1990 |
| 12 | Literature | Shpakova18 | 303 | Lena | 1993 |
| 13 | Unpublished data | Gabysheva O.I. | 303 | Lena/Yana/Kolyma/Indigirka/other small rivers from eastern Siberia | 2006–2011 |
| 14 | Unpublished data | Wang P. | 44 | Angara/Selenga-Baikal | 2015–2018 |
Note: (1) ArcticGRO - Arctic Great Rivers Observatory water quality dataset (https://www.arcticgreatrivers.org/data)20; (2) GLORICH - GLObal RIver CHemistry database (10.1594/PANGAEA.902360)21; (3) the database eliminates duplicate data from different sources; (4) n represents the number of samples.