Retrieval of chlorophyll-a concentration based on Sentinel-2 images in inland lakes

Xuming Shi; Lingjia Gu; Tao Jiang; Mingda Jiang

doi:10.1117/12.2631480

30 September 2022 Retrieval of chlorophyll-a concentration based on Sentinel-2 images in inland lakes

Xuming Shi, Lingjia Gu, Tao Jiang, Mingda Jiang

Proceedings Volume 12232, Earth Observing Systems XXVII; 122321H (2022) https://doi.org/10.1117/12.2631480
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

Eutrophication of water is becoming more and more serious, especially Case 2 waters in inland lakes. Chlorophyll-a (Chla) concentration is an important characterized parameter of inland lakes. Its monitoring can effectively reflect the eutrophication degree and changes of inland lakes. This study takes Chagan Lake as the research area, which is located in Jilin Province, Northeast China. Using Sentinel-2 images combined with the in-situ measurements at the same day to establish the inversion model of Chl-a concentration through single-band and band-ratio methods. In the process, models with these two methods using in-situ hyperspectral data which is corresponding to bands on Sentinel-2 are also developed. The experimental results show that the band-ratio method has a better effect on inhibiting the effects of total suspended sediments (TSS) and colored dissolved organic matter (CDOM) compared with single band method. In-situ model (R² = 0.69) and model for Sentinel-2 (R² = 0.69) have RMSE at 2.54 ug L^-1 and 2.51 ug L^-1, respectively. Thus, it is feasible to retrieve Chl-a in inland lakes from northeast China by remote sensing using the band-ratio method, which is of great significance for monitoring and early warning of water eutrophication.

Citation Download Citation

Xuming Shi, Lingjia Gu, Tao Jiang, and Mingda Jiang "Retrieval of chlorophyll-a concentration based on Sentinel-2 images in inland lakes", Proc. SPIE 12232, Earth Observing Systems XXVII, 122321H (30 September 2022); https://doi.org/10.1117/12.2631480

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Reflectivity

Data modeling

Satellites

Performance modeling

Remote sensing

Sensors

Algorithm development

Show All Keywords

Keywords/Phrases

Search In:

Publication Years