Graßl, Sandra; Ritter, Christoph (2021): Sun Photometer Data (AOD) from Ny-Ålesund, Svalbard (AWIPEV) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.937554
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Abstract:
Aerosol optical depth (AOD) is measured by a sun photometer, type SP1a by Dr. Schulz & Partner GmbH in 17 wavelengths between λ = 369nm to 1023nm with a field of view of 1° × 1° and a time resolution of 1 minute. In winter 2012/13 a new sun photometer was installed and just 10 of 17 wavelengths remained in the same wavelength range. With the nine out of ten wavelengths optical parameters like the AOD are computed. The one, which is devoted to water vapor is omitted. The instrument is calibrated regularly in pristine conditions at Izaña, Tenerife, via Langley method. A cloud screening based on short scale fluctuations of the AOD is used. The uncertainty for the AOD is generally said to be around 0.01. However, this is the maximum error of the instrument because the fluctuations are much smaller by comparing data minute by minute under low or constant aerosol conditions.
The number of individual measurements differs between a few hundreds, especially in March and September, to up to 12,000 in early summer. No trend in each month can be seen comparing the amount of cloud-free measurements over the years. Only an annual cycle due to polar day and night is included in the data. Due to the instrument data is only available in clear sky conditions. In this regard the data should represent the real aerosol conditions. Only aerosols that are advected and processed within clouds or hygroscopic growth cannot be measured by this instrument.
Keyword(s):
Related to:
Graßl, Sandra (2019): Properties of Arctic Aerosols based on Photometer Long-Term Measurements in Ny-Ålesund (Master thesis). hdl:10013/epic.6594e5f6-6041-4a2b-b730-361720c0d722
Graßl, Sandra; Ritter, Christoph (2019): Properties of Arctic Aerosol Based on Sun Photometer Long-Term Measurements in Ny-Ålesund, Svalbard. Remote Sensing, 11(11), 1362, https://doi.org/10.3390/rs11111362
Other version:
Graßl, Sandra; Ritter, Christoph (2022): Sun Photometer Data (RAW) from Ny-Ålesund, Svalbard (AWIPEV). PANGAEA, https://doi.org/10.1594/PANGAEA.940018
Coverage:
Latitude: 78.920000 * Longitude: 11.930000
Date/Time Start: 2012-03-19T00:00:00 * Date/Time End: 2020-09-30T00:00:00
Event(s):
AWIPEV (Koldewey) * Latitude: 78.920000 * Longitude: 11.930000 * Elevation: 11.0 m * Location: Spitsbergen, Svalbard * Campaign: AWIPEV_based * Basis: AWIPEV * Method/Device: Research station (RS)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
9 datasets
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Datasets listed in this publication series
- Graßl, S; Ritter, C (2021): Sun Photometer Data (AOD) 2012 from Ny-Ålesund, Svalbard (AWIPEV). https://doi.org/10.1594/PANGAEA.937356
- Graßl, S; Ritter, C (2021): Sun Photometer Data (AOD) 2013 from Ny-Ålesund, Svalbard (AWIPEV). https://doi.org/10.1594/PANGAEA.937413
- Graßl, S; Ritter, C (2021): Sun Photometer Data (AOD) 2014 from Ny-Ålesund, Svalbard (AWIPEV). https://doi.org/10.1594/PANGAEA.937535
- Graßl, S; Ritter, C (2021): Sun Photometer Data (AOD) 2015 from Ny-Ålesund, Svalbard (AWIPEV). https://doi.org/10.1594/PANGAEA.937545
- Graßl, S; Ritter, C (2021): Sun Photometer Data (AOD) 2016 from Ny-Ålesund, Svalbard (AWIPEV). https://doi.org/10.1594/PANGAEA.937546
- Graßl, S; Ritter, C (2021): Sun Photometer Data (AOD) 2017 from Ny-Ålesund, Svalbard (AWIPEV). https://doi.org/10.1594/PANGAEA.937596
- Graßl, S; Ritter, C (2021): Sun Photometer Data (AOD) 2018 from Ny-Ålesund, Svalbard (AWIPEV). https://doi.org/10.1594/PANGAEA.937619
- Graßl, S; Ritter, C (2021): Sun Photometer Data (AOD) 2019 from Ny-Ålesund, Svalbard (AWIPEV). https://doi.org/10.1594/PANGAEA.937629
- Graßl, S; Ritter, C (2021): Sun Photometer Data (AOD) 2020 from Ny-Ålesund, Svalbard (AWIPEV). https://doi.org/10.1594/PANGAEA.937630