Tavora, Juliana; Fernandes, Elisa Helena L; Möller Jr, Osmar O (2020): SPM in situ data concurrent with Landsat 8/OLI overpass for Guaíba River - UFRGS (2015 - 2017) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.920923, In: Tavora, J et al. (2020): Patos Lagoon Suspended Particulate Matter (SPM) data compendium [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.920924
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Published: 2020-07-28 • DOI registered: 2021-04-02
Abstract:
Two years of field sampling concurrent with Landsat8/OLI overpass was acquired by Scotta (2018; http://hdl.handle.net/10183/184882). 9 field campaigns were carried out onboard a vessel to sample in situ SPM data from November 2015 to March 2017 on the days Landsat8/OLI overpass, when the cloudiness was low or nonexistent. 144 in situ water samples were collected on the surface and later filtered by the gravimetric method in the laboratory to determine SPM following the method described in Baumgarten et al. (Baumgarten, M., Wallner-Kersanach, M., and Niencheski, L.: Manual de Análises em Oceanografia Química, FURG, Rio Grande, Brazil, 2010). Samples were collected at a 2-hour interval before and after the satellite overpass. In the 3 final campaigns, the samplings were conducted throughout the day and the acquisition time exceeded the 2-hour interval due to the larger number of samples. Surface reflectance was extracted from the central pixel correspondent to the samples and from the adjacent pixels so that the results could be compared. Regression analyzes were performed among the SPM data and for the visible, near-infrared (NIR), and two medium infrared bands (SWIR1 and SWIR2). The best-fit model corresponded to the red band (667 nm) in an exponential relationship.
Related to:
Tavora, Juliana; Fernandes, Elisa Helena L; Möller Jr, Osmar O: Suspended Particulate Matter (SPM) data compendium.
Coverage:
Median Latitude: -30.123049 * Median Longitude: -51.266341 * South-bound Latitude: -30.280000 * West-bound Longitude: -51.310000 * North-bound Latitude: -29.930000 * East-bound Longitude: -51.020000
Date/Time Start: 2015-11-08T00:00:00 * Date/Time End: 2017-03-02T00:00:00
Minimum DEPTH, water: 0 m * Maximum DEPTH, water: 0 m
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Project | Project | Tavora, Juliana | |||
| 2 | Campaign | Campaign | Tavora, Juliana | |||
| 3 | Station label | Station | Tavora, Juliana | |||
| 4 | Year of publication | Year pub | Tavora, Juliana | |||
| 5 | Month | Month | Tavora, Juliana | |||
| 6 | Day | Day | Tavora, Juliana | Start | ||
| 7 | DATE/TIME | Date/Time | Tavora, Juliana | Geocode | ||
| 8 | LATITUDE | Latitude | Tavora, Juliana | Geocode | ||
| 9 | LONGITUDE | Longitude | Tavora, Juliana | Geocode | ||
| 10 | DEPTH, water | Depth water | m | Tavora, Juliana | Geocode | |
| 11 | Suspended particulate matter | SPM | g/m3 | Tavora, Juliana | Suspended particulate matter |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
1148 data points