Citation:

essd-7-289-2015

Always quote citation above when using data! You can download the citation in several formats below.

RIS Citation BibTeX Citation Text Citation Facebook TwitterShow Map Google Earth

Abstract:

The quality of water level time series data strongly varies with periods of high and low quality sensor data. In this paper we are presenting the processing steps which were used to generate high quality water level data from water pressure measured at the Time Series Station (TSS) Spiekeroog. The TSS is positioned in a tidal inlet between the islands of Spiekeroog and Langeoog in the East Frisian Wadden Sea (southern North Sea). The processing steps will cover sensor drift, outlier identification, interpolation of data gaps and quality control. A central step is the removal of outliers. For this process an absolute threshold of 0.25m/10min was selected which still keeps the water level increase and decrease during extreme events as shown during the quality control process. A second important feature of data processing is the interpolation of gappy data which is accomplished with a high certainty of generating trustworthy data. Applying these methods a 10 years dataset (December 2002-December 2012) of water level information at the TSS was processed resulting in a seven year time series (2005-2011).

Coverage:

Latitude: 53.750278 * Longitude: 7.671194

Date/Time Start: 2005-01-01T00:00:00 * Date/Time End: 2011-12-31T23:50:00

Comment:

The Time Series Station (TSS) Spiekeroog is running by the Institute for Chemistry and Biology of the Marine Environment (ICBM) (University Oldenburg) and is located in a tidal inlet between the islands of Spiekeroog and Langeoog in the East Frisian Wadden Sea (southern North Sea). The time series station Spiekeroog was initiated by Rainer Reuter and set up as part of the DFG research group BioGeoChemistry of tidal flats. Here, hydrographic, atmospheric, biological and chemical parameters are measured since 2002. Here are water pressure data and the resulting processing data available. This processing includes trend removal, outlier identification, interpolation of data gaps and quality control. Therefore the data set is divided into four columns: 1) Water pressure data; 2) Water level data equal to NN with trend and outlier removal; 3) Final water level data with gap interpolation; 4) Bit coded Flag (001 (=1): Trend subtracted, 010 (=2): Outlier, 100 (=4): Interpolated).

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

7 datasets

Download Data

Download ZIP file containing all datasets as tab-delimited text — use the following character encoding:

Datasets listed in this publication series

Holinde, L; Badewien, TH; Freund, JA et al. (2015): Pressure and processed water levels from the Time Series Station Spiekeroog in 2005. https://doi.org/10.1594/PANGAEA.843733
Holinde, L; Badewien, TH; Freund, JA et al. (2015): Pressure and processed water levels from the Time Series Station Spiekeroog in 2006. https://doi.org/10.1594/PANGAEA.843734
Holinde, L; Badewien, TH; Freund, JA et al. (2015): Pressure and processed water levels from the Time Series Station Spiekeroog in 2007. https://doi.org/10.1594/PANGAEA.843735
Holinde, L; Badewien, TH; Freund, JA et al. (2015): Pressure and processed water levels from the Time Series Station Spiekeroog in 2008. https://doi.org/10.1594/PANGAEA.843736
Holinde, L; Badewien, TH; Freund, JA et al. (2015): Pressure and processed water levels from the Time Series Station Spiekeroog in 2009. https://doi.org/10.1594/PANGAEA.843737
Holinde, L; Badewien, TH; Freund, JA et al. (2015): Pressure and processed water levels from the Time Series Station Spiekeroog in 2010. https://doi.org/10.1594/PANGAEA.843738
Holinde, L; Badewien, TH; Freund, JA et al. (2015): Pressure and processed water levels from the Time Series Station Spiekeroog in 2011. https://doi.org/10.1594/PANGAEA.843739