Citation:

PANGAEA.973237

Name: Water chemistry and catchment parameters of streams located in three geographical areas in Greenland
Published: 2024-11-04
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Biofilms; epilithic biofilm; Greenland; stream

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Abstract:

The data contains epilithic biofilm, water chemistry, and catchment data for 28 streams in Greenland. 14 streams in Zackenberg (74°28'N, 20°34'W), between the 20th of August and 3rd of September 2017, six streams in Qeqertarsuaq (69°15'N, 53°31'W), between the 18th and 25th of September 2018, and eight streams in Narsaq (60°55'N, 46°52W), between the 4th and 6th of August 2022. We collected biofilm samples for measuring algal and total biomass, measured community composition in-situ using a bbe BenthoTorch, collected water samples for measuring water chemistry, and determined catchment parameters using GIS-based tools. Biofilm characteristics (i.e. chlorophyll-a, ash-free dry weight, and community composition), water chemistry (i.e. ammonium, phosphate, nitrate, and silica), and catchment characteristics (i.e. NDVI, area, and slope) was measured for all streams. Biofilm and water chemistry samples were collected and analysed using standard methods, and catchment characteristics were determined using GIS resources. The data was collected in order to study relationships between epilithic biofilm characteristics and water chemistry and catchment properties

Keyword(s):

Biofilms; epilithic biofilm; Greenland; stream

Coverage:

Median Latitude: 69.504419 * Median Longitude: -34.885741 * South-bound Latitude: 60.939556 * West-bound Longitude: -53.569194 * North-bound Latitude: 74.539194 * East-bound Longitude: -20.482722

Date/Time Start: 2017-08-20T00:00:00 * Date/Time End: 2022-08-06T00:00:00

Minimum ELEVATION: 18 m a.s.l. * Maximum ELEVATION: 263 m a.s.l.

Event(s):

Narsaq_NR01 (Narsaq_River_1) * Latitude: 60.980694 * Longitude: -45.950139 * Date/Time: 2022-08-06T00:00:00

Narsaq_NR02 (Narsaq_River_2) * Latitude: 60.966306 * Longitude: -45.985472 * Date/Time: 2022-08-06T00:00:00

Narsaq_NR03 (Narsaq_River_3) * Latitude: 60.955639 * Longitude: -46.008500 * Date/Time: 2022-08-04T00:00:00

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Moedt, Sanne M
2	Region, genetic	Region		Moedt, Sanne M
3	Site	Site		Moedt, Sanne M
4	Code	Code		Moedt, Sanne M
5	Year of sampling	Year sampl		Moedt, Sanne M
6	DATE/TIME	Date/Time		Moedt, Sanne M		Geocode
7	LATITUDE	Latitude		Moedt, Sanne M		Geocode
8	LONGITUDE	Longitude		Moedt, Sanne M		Geocode
9	Replicate	Repl		Moedt, Sanne M
10	Chlorophyll a	Chl a	µg/cm²	Moedt, Sanne M
11	Biofilm, ash free dry mass per area	Biofilm afdm	mg/cm²	Moedt, Sanne M
12	Autotrophic index	AI		Moedt, Sanne M
13	Latitude description	Latitude descr		Moedt, Sanne M		degree only
14	ELEVATION	Elevation	m a.s.l.	Moedt, Sanne M		Geocode
15	Flow velocity, water	Vel water	m/s	Moedt, Sanne M	Flowmeter, Höntzsch
16	Stream bed, width	Stream bed w	m	Moedt, Sanne M
17	Stream flow, depth	Stream flow d	m	Moedt, Sanne M
18	Temperature, water	Temp	°C	Moedt, Sanne M	YSI Multiparameter system	10 cm below water surface
19	Oxygen, dissolved	DO	%	Moedt, Sanne M
20	Conductivity, electrical	Cond electr	µS/cm	Moedt, Sanne M
21	Nitrogen in ammonium	N-[NH4]+	µg/l	Moedt, Sanne M	Lachat QuickChem 8500 flow injection autoanalyser
22	Phosphorus in orthophosphate	P-[PO4]3-	µg/l	Moedt, Sanne M	Lachat QuickChem 8500 flow injection autoanalyser
23	Nitrogen in nitrate	N-[NO3]-	µg/l	Moedt, Sanne M	Lachat QuickChem 8500 flow injection autoanalyser
24	Silicon	Si	mg/l	Moedt, Sanne M
25	Normalized Differenced Vegetation Index, mean	NDVI mean		Moedt, Sanne M
26	Catchment area	Catch area	km²	Moedt, Sanne M
27	Slope angle	Slope angle	deg	Moedt, Sanne M		mean

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

1586 data points

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