Future GEO AquaWatch Webinars

Title: Arctic COLORS

Presenters: Dr. Peter Hernes, University of California-Davis

Date: May 8, 2020, 2pm UTC

Abstract and Speaker Bio – coming soon!

GEO AquaWatch Secretariat is inviting you to a scheduled Zoom meeting.

Topic: GEOAquaWatch Webinar – Arctic COLORS Peter Hernes
Time: May 8, 2020 02:00 PM Universal Time UTC

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Meeting ID: 393 363 2078
Password: aquawatch

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Title: GLIMR

Presenter: Dr. Joe Salisbury, University of New Hampshire

Date: May 21, 2020, 2pm UTC

Abstract and Speaker Bio – Coming soon!

GEO AquaWatch Secretariat is inviting you to a scheduled Zoom meeting.

Topic: GEOAquaWatch Webinar – Ocean Color Joe Salisbury UNH
Time: May 21, 2020 02:00 PM Universal Time UTC

Join Zoom Meeting
Meeting ID: 393 363 2078
Password: aquawatch

US Callers may use One tap mobile
+16465588656,,3933632078# US (New York)
+16699006833,,3933632078# US (San Jose)

Or Dial by your location
+1 646 558 8656 US (New York)
+1 669 900 6833 US (San Jose)

International Callers Find your local number: https://zoom.us/u/aAqehl6Et


Title: Spectral enhancements with contra-bands: A case study of the OLI/Landsat 8 orange contra-band and its application for inland water remote sensing.

Presenter: Alexander Castagna, Department of Biology, Ghent University

Date: June 18, 2020, 2pm UTC

Abstract: Recently, a new method was developed to extract additional spectral information from a set of overlapping wavebands (Castagna et al. 201820192020). This spectral enhancement technique was termed contra-band, and is based on the extraction of information that was measured, but is mixed with information from a broader spectral region. Therefore, it has potential to add independent information to the band set of specific sensors. The method is generic and can be analytical if waveband properties are optimal, or semi-analytical otherwise. We will explore this concept in view of available sensors, with focus on the semi-analytical contra-band possible for OLI/Landsat 8, that can provide independent information in the orange spectral region (590-635 nm) over turbid inland waters. The OLI orange contra-band represents the first global open dataset of high spatial resolution information in the orange spectral region. We will discuss performance analysis, new validation data from in situ hyperspectral networks, and applications related to detection cyanobacterial blooms and quantification of phycocyanin concentration at high spatial resolution.
Bio: Alexandre Castagna is a PhD candidate at the Biology Department of Gent University, Belgium, working both with multi and hyperspectral data for water quality estimation in small inland water bodies. He obtained his MSc. degree in a multidisciplinary context, linking land and atmospheric processes (dust emission and transport) to ocean biogeochemistry in the Southern Ocean. He also worked with coastal ecosystem dynamics, specifically the effect of wind driven water masses intrusion on primary production and tidal impact on phytoplankton diversity in small bays. He has an interest both in the physical and biological components of hydrology optics, including in situ spectroscopy methods, Monte Carlo simulation, IOP inversion and HAB detection/quantification.

GEO AquaWatch Secretariat is inviting you to a scheduled Zoom meeting.

Topic: GEOAquaWatch Webinar – Spectral enhancements
Time: Jun 18, 2020 02:00 PM Universal Time UTC

Join Zoom Meeting
https://zoom.us/j/3933632078

Meeting ID: 393 363 2078

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Meeting ID: 393 363 2078
Find your local number: https://zoom.us/u/aAqehl6Et

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