Webinar 1: Nov. 30 – Dec. 2, 2021 (Mapping Seagrass by Optical Sensors
Webinar 2: Dec. 14 – 16, 2021 (Monitoring and Assessment of Water Quality by Ocean Color Remote Sensing)

Introduction
CEARAC organized the 5th NOWPAP remote sensing training, our first webinar of remote sensing data analysis training: Webinar 1 (mapping seagrass by optical sensors) from November 30 and December 2; and Webinar 2 (monitoring and assessment of water quality by ocean color remote sensing) from December 14 to 16, 2021.
For Webinar 1, participants learned key factors for accurate mapping of seagrass habitats and got familiar with the Seagrass Trainer and the Seagrass Mapper, both of which were developed by CEARAC for mapping seagrass grounds in the NOWPAP region, while for Webinar 2, participants were introduced to several tools developed by CEARAC to help protect the coastal marine environment. One of the tools is the Global Eutrophication Watch running on Google Earth Engine. It is used for rapid screening of coastal eutrophication with satellite-derived chlorophyll data. The other is the online match-up tool that will help improve satellite data product algorithms through collection of ground truth data.

Objectives
To contribute to capacity building, targeting at postgraduate students, young professional researchers and coastal managers (including local government officers) working in the fields of marine sciences and coastal-zone management in the Northwest Pacific Region and adjacent area while introducing useful tools of CEARAC to monitor and asses the status of the coastal environment by processing and analyzing satellite imagery. 

Date:   Webinar 1 (November 30 – December 2, 2021); Webinar 2 (December 14-16, 2021)

Venue:  Meeting Room in Tower 111, Toyama, Japan

Organization Structure
Organizer:
              Special Monitoring & Coastal Environment Assessment Regional Activity Centre (CEARAC)
Supporters:
               IOC/Sub-Commission for the Western Pacific (WESTPAC)
               North Pacific Marine Science Organization (PICES)

Course Fee
Training course was provided for free of charge.  

Trainees
18 people from 5 countries completed Webinar 1, and 21 people from 9 countries completed Webinar 2.

Country Number of of Trainees who completed Webinar 1 Number of of Trainees who completed Webinar 2
China   2
Japan   1
Korea   3
Russia 4 3
UK   1
India 1 1
Indonesia 7 3
Thailand 3 4
Viet Nam 3 3


Lecturers

Country Name Title / Organization Webinar 1 and/or 2
Japan Dr. Joji ISHIZAKA Director, Professor / Hydrospheric Atmospheric Research Center, Nagoya University Webinar 2
Japan Dr. Teruhisa KOMATSU Expert advisor / Japan Fisheries Resource Conservation Association Webinar 1
Japan Dr. Akira KOZUKA Researcher / Northwest Pacific Region Environmental Cooperation Center (NPEC) Webinar 1
Japan Dr. Tatsuyuki SAGAWA Senior Researcher / Remote Sensing Technology Center of Japan (RESTEC) Webinar 1
Japan Dr. Genki TERAUCHI Senior Researcher / NOWPAP CEARAC Webinar 1 and 2
Japan Dr. Eligio MAÚRE Researcher / NOWPAP CEARAC Webinar 2
Korea Dr. Wonkook KIM Assistant Professor / Department of Civil Engineering, Pusan National University Webinar 2


Course Program

Webinar 1: Mapping seagrass by optical sensors

Date Time(JST) Program Lecturers
Nov 30 14:00-14:10 Introduction and housekeeping Mr. Makoto HAYASHI (CEARAC Director) and Dr. Genki TERAUCHI
14:10-14:50 Seagrass beds and its ground truthing (L)  Dr. Teruhisa KOMATSU
14:50-15:20 Case study in Nanao Bay (L)  Dr. Akira KOZUKA and Dr. Genki TERAUCHI
15:30-17:00 Preparation of training data sets from ground truth data (H) Dr. Genki TERAUCHI
Dec 1 14:00-14:40 Theory of detecting seagrass by remote sensing and basics of image classifications and accuracy assessment (L)  Dr. Tatsuyuki SAGAWA
14:40-15:10 Introduction to Seagrass Mapper and Seagrass Trainer (L) Dr. Genki TERAUCHI
15:30-17:00 Classification of satellite images and accuracy assessment (H) Dr. Genki TERAUCHI
Dec 2 14:00-15:30 Hands-on for preparing training data and classification (H) All lecturers
15:40-16:30 Wrap up and Q&A Dr. Genki TERAUCHI and Dr. Tatsuyuki SAGAWA

(L) = Lecture
(H) = Hands-on exercises

Webinar 2: Monitoring and assessment of water quality by ocean color remote sensing

Date Time(JST) Program Lecturers
Dec 14 14:00-14:10 Introduction and housekeeping Mr. Makoto HAYASHI and Dr. Genki TERAUCHI
14:10-14:50 Introduction to satellite biological oceanography and ocean color remote sensing (L) Dr. Joji ISHIZAKA
15:00-15:50 Application of ocean color products (H)
Introduction to the global eutrophication watch
Dr. Eligio MAÚRE
16:00-17:00 Working with satellite swath imagery (H) 
Introduction to the online match-up tool
Dr. Eligio MAÚRE
Dec 15 14:00-14:40

Application of ocean color products (L) 
Introduction to eutrophication and Harmful algal blooms (HABs)

Dr. Wonkook KIM
15:00-17:20 Time-series analysis (H) 
i) Browse and download NOWPAP-Marine Environmental Watch data
ii) Generate monthly composites from daily images
iii) Create animations from monthly images
Dr. Eligio MAÚRE
Dec 16 14:00-15:40 Time-series analysis (H)
i) Extract annual max from monthly images
ii) Extract point/region of interest
iii) Perform trend detection
Dr. Eligio MAÚRE
15:50-16:50 Wrap up and Q&A Dr. Eligio MAÚRE and Dr. Genki TERAUCHI

(L) = Lecture
(H) = Hands-on exercises

 

Webinar 1

 

Webinar 2