Tereshina, Mariya; Erina, Oxana; Chalov, Sergey R; Juhls, Bennet; Overduin, Pier Paul; Morgenstern, Anne; Eulenburg, Antje: Dissolved organic carbon and total dissolved nitrogen concentration of Lena River water from 26.08.2021 (#488) to 16.08.2022 (#612) [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.967437 (dataset in review), In: Juhls, Bennet; Morgenstern, Anne; Chetverova, Antonina; Eulenburg, Antje; Hölemann, Jens A; Povazhnyi, Vasily; Overduin, Pier Paul (2020): Lena River surface water monitoring near the Samoylov Island Research Station [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.913197
Abstract:
We collected water samples from the river surface in the center of the Olenekskaya Channel near Samoylov Island using a pre-rinsed HDPE 1 L bottle. During the open water period (June to October), water was sampled from a small boat, and during ice-covered period (November to May), through a hole drilled through the river ice. Some samples during the river ice break-up (between May and June) as well as some samples during the ice freeze-up in October were taken from the shore due to the inaccessibility of a more centered location on the river channel. For DOC and TDN, the sample was filtered through a 0.45 μm cellulose acetate filter which had been rinsed with 20 mL sample water. Samples were filled into a pre-rinsed 20 mL glass vial and acidified with 25 μL HCl Suprapur (10 M) and stored in the dark at 4°C. After transport, samples were analyzed at Lomonosov Moscow State University in Moscow, Russia (MSU). DOC and TDN concentrations were analyzed using a TOPAZ NC manufactured by Informanalitika LLC (Russia). For analysis, ISO 11905-2:1997 for nitrogen and ISO 8245:1999 for carbon was followed. Three replicate measurements of each sample were averaged and three standards (5,15, and 100 mg L-1) as well as blanks (Milli-Q water) were used to ensure high accuracy of the measurements.
Coverage:
Latitude: 72.367977 * Longitude: 126.459550
Date/Time Start: 2021-08-26T17:30:00 * Date/Time End: 2022-08-16T09:00:00
Minimum DEPTH, water: 0.2 m * Maximum DEPTH, water: 0.2 m
Event(s):
Olenekskaya_Ch * Latitude: 72.367977 * Longitude: 126.459550 * Method/Device: Sampling river (RIVER)
RU-Land_2021_Lena_Olenekskaya * Latitude: 72.367977 * Longitude: 126.459550 * Date/Time Start: 2021-05-04T00:00:00 * Date/Time End: 2021-09-23T00:00:00 * Campaign: RU-Land_2021_Lena (Lena 2021) * Basis: AWI Arctic Land Expedition * Method/Device: Sampling river (RIVER)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Identification | ID | Juhls, Bennet | |||
| 2 | DATE/TIME | Date/Time | Juhls, Bennet | Geocode | ||
| 3 | DEPTH, water | Depth water | m | Juhls, Bennet | Geocode | |
| 4 | Comment | Comment | Juhls, Bennet | |||
| 5 | Carbon, organic, dissolved | DOC | mg/l | Tereshina, Mariya | High temperature catalytic oxidation, Topaz, TOPAZ-NC | |
| 6 | Nitrogen, total dissolved | TDN | mg/l | Tereshina, Mariya | High temperature catalytic oxidation, Topaz, TOPAZ-NC |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
389 data points