Moedt, Sanne M; Riis, Tenna; Jacobsen, Dean; Geertz-Hansen, Ole; Martinsen, Kenneth T; Christoffersen, Kirsten Seestern: Chlorophyll a and epilithic biofilm characteristics in samples collected from lakes and streams in South Greenland in August 2022 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.974505 (dataset in review), In: Moedt, SM et al.: Epilithic biofilm, water chemistry and catchment data collected from lakes and streams in South Greenland in August 2022 [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.974506 (dataset in review)
Abstract:
This dataset contains measurements of physico-chemical parameters, biofilm, and watershed characteristics from subarctic lakes and streams in the Narsaq area, Greenland, collected in August 2022. Water samples were collected and analyzed for temperature, conductivity, alkalinity, and nutrient concentrations. Biofilm samples were collected from stones, with chlorophyll a (Chl a), ash-free dry weight (AFDW), and carbon-to-nitrogen (C:N) ratios measured. Algal pigments were analyzed using HPLC for taxonomic composition. Watershed delineation was performed using a digital elevation model (DEM), and vegetation greenness was quantified via the normalized difference vegetation index (NDVI) using Sentinel-2 satellite imagery. This dataset contributes to understanding the environmental drivers of biofilm biomass and community composition in Arctic freshwater ecosystems.
Related to:
Moedt, Sanne M; Christoffersen, Kirsten Seestern; Westergaard-Nielsen, Andreas; Martinsen, Kenneth T; Pastor, Ada; Jákup Korsgaard, Niels; Riis, Tenna (2024): Water chemistry and catchment parameters of streams located in three geographical areas in Greenland [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.973238
Funding:
Carlsberg Foundation, grant/award no. CF19-0436: Back to the future for lakes and streams at "Erik den Rødes land" (West Greenland)
H2020 Marie Skłodowska-Curie Actions (MSCA), grant/award no. 801199: RECORD: An anthropogenic archive of plastic pollution in Greenland
Coverage:
Median Latitude: 60.940082 * Median Longitude: -45.999818 * South-bound Latitude: 60.867460 * West-bound Longitude: -46.083300 * North-bound Latitude: 60.980690 * East-bound Longitude: -45.930770
Date/Time Start: 2022-08-04T00:00:00 * Date/Time End: 2022-08-14T00:00:00
Event(s):
Narsaq_L003 (Lake) * Latitude: 60.867460 * Longitude: -45.947300 * Date/Time: 2022-08-10T00:00:00 * Location: Greenland * Campaign: Narsag_GL_2208 * Basis: Sampling on land * Method/Device: Water sample (WS)
Narsaq_L010 (Lake) * Latitude: 60.869700 * Longitude: -45.954360 * Date/Time: 2022-08-10T00:00:00 * Location: Greenland * Campaign: Narsag_GL_2208 * Basis: Sampling on land * Method/Device: Water sample (WS)
Narsaq_L080 (Lake) * Latitude: 60.940850 * Longitude: -46.083300 * Date/Time: 2022-08-12T00:00:00 * Location: Greenland * Campaign: Narsag_GL_2208 * Basis: Sampling on land * Method/Device: Water sample (WS)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Christoffersen, Kirsten Seestern | |||
| 2 | DATE/TIME | Date/Time | Christoffersen, Kirsten Seestern | Geocode | ||
| 3 | LATITUDE | Latitude | Christoffersen, Kirsten Seestern | Geocode | ||
| 4 | LONGITUDE | Longitude | Christoffersen, Kirsten Seestern | Geocode | ||
| 5 | Location type | Loc type | Christoffersen, Kirsten Seestern | |||
| 6 | Chlorophyll a | Chl a | µg/cm2 | Christoffersen, Kirsten Seestern | ||
| 7 | Biofilm, ash free dry mass per area | Biofilm afdm | mg/cm2 | Christoffersen, Kirsten Seestern | ||
| 8 | Autotrophic index | AI | Christoffersen, Kirsten Seestern | |||
| 9 | Carbon/Nitrogen ratio | C/N | Christoffersen, Kirsten Seestern |
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:
247 data points