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Data Publisher for Earth & Environmental Science

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: 2020-07-28DOI registered: 2021-04-02

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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: m * Maximum DEPTH, water: m
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
ProjectProjectTavora, Juliana
CampaignCampaignTavora, Juliana
Station labelStationTavora, Juliana
Year of publicationYear pubTavora, Juliana
MonthMonthTavora, Juliana
DayDayTavora, JulianaStart
DATE/TIMEDate/TimeTavora, JulianaGeocode
LATITUDELatitudeTavora, JulianaGeocode
LONGITUDELongitudeTavora, JulianaGeocode
10 DEPTH, waterDepth watermTavora, JulianaGeocode
11 Suspended particulate matterSPMg/m3Tavora, JulianaSuspended particulate matter
Size:
1148 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Project

Campaign

Station

Year pub

Month

Day

Date/Time

Latitude

Longitude
10 
Depth water [m]
11 
SPM [g/m3]
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