Povazhnyi, Vasily; Juhls, Bennet; Overduin, Pier Paul; Morgenstern, Anne; Chetverova, Antonina; Hölemann, Jens A: Dissolved inorganic nutrient concentration of Lena River water from 20.04.2018 (#1) to 11.09.2019 (#201) [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.967432 (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. Samples for dissolved inorganic nutrient analysis (silicate, ammonium, phosphate, nitrite, and nitrate) were filtered through a 0.45 μm cellulose acetate filter, which had been rinsed with 20 mL sample water. Dissolved inorganic nutrients for samples #001 - #201 (20 Apr. 2018 to 11 Sept. 2019) were measured at the Otto Schmidt Laborator in St. Petersburg, Russia. Nutrient concentrations were analyzed on an automated continuous flow system (San+, SKALAR, Netherlands) with standard colorimetric techniques (Aminot et al. 2009).
Coverage:
Latitude: 72.367977 * Longitude: 126.459550
Date/Time Start: 2018-04-20T21:00:00 * Date/Time End: 2019-09-11T10:00:00
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_2018_Lena_Olenekskaya * Latitude: 72.367977 * Longitude: 126.459550 * Date/Time Start: 2018-04-05T00:00:00 * Date/Time End: 2018-09-15T00:00:00 * Campaign: RU-Land_2018_Lena (Lena 2018) * Basis: AWI Arctic Land Expedition * Method/Device: Sampling river (RIVER)
RU-Land_2019_Lena_Olenekskaya * Latitude: 72.367977 * Longitude: 126.459550 * Date/Time Start: 2019-03-24T00:00:00 * Date/Time End: 2019-09-17T00:00:00 * Campaign: RU-Land_2019_Lena (Lena 2019) * 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 | Silicate | Si(OH)4 | µmol/l | Povazhnyi, Vasily | ||
| 6 | Ammonium | [NH4]+ | µmol/l | Povazhnyi, Vasily | ||
| 7 | Phosphate | [PO4]3- | µmol/l | Povazhnyi, Vasily | ||
| 8 | Nitrate and Nitrite | [NO3]- + [NO2]- | µmol/l | Povazhnyi, Vasily |
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:
875 data points