Mastodawn

Fiona Gregory Sep 4, 2025

Our paper demonstrates a simple method for monitoring harmful #algal_blooms / #cyanobacteria in a #lake over space and time, using #ChlorophyllA as a proxy and open source satellite imagery. You just need a few well-timed chl-a samples from your lake to calibrate an #aquatic chlorophyll index https://cdnsciencepub.com/doi/10.1139/cjfas-2024-0374 #earthobservation #SatelliteRemoteSensing #PigeonLake #lake_ecology

Fiona Gregory Aug 19, 2024

50 years of ocean algal blooms data visualization from NASA #algal_blooms
1973 - 2023 harmful algal bloom throughout the world, depicted on a Robinson projection map.
https://svs.gsfc.nasa.gov/14648/#media_group_375294

NASA Scientific Visualization Studio | An Ocean in Bloom

Music: "Maelstrom Dream," "Skipping Stones On The Lake," "Breaking Through The Clouds," "Awaking Wonder," "Floating Emotions," "Fire in the Chill of Dawn," "Closed Fractures," "Battle For Our Future," "Final Climb," "In Nature," Universal Production Music.Complete transcript available.This video can be freely shared and downloaded. While the video in its entirety can be shared without permission, some individual imagery provided by external sources (see list below) is obtained through permission and may not be excised or remixed in other products. For more information on NASA’s media guidelines, visit https://www.nasa.gov/multimedia/guidelines/index.htmlFootage Courtesy Of: FOX 13 News, New World of Communications of Tampa, INC. TM and Copyright 2021, 2022, 2023. All Rights Reserved, Pexels, Pond5, Ralph Arwood, Joseph Rohrs, Dale Danelle, NOAA Fisheries, NASA/SpaceX.You can also find "An Ocean in Bloom" on NASA+. || NHQ_2024_0801_AnOceanInBloom_FINALCUT.02846_print.jpg (1024x576) [214.4 KB] || NHQ_2024_0801_AnOceanInBloom_FINALCUT.02846_searchweb.png (320x180) [102.3 KB] || NHQ_2024_0801_AnOceanInBloom_FINALCUT.02846_web.png (320x180) [102.3 KB] || NHQ_2024_0801_AnOceanInBloom_FINALCUT.02846_thm.png (80x40) [6.5 KB] || NHQ_2024_0801_AnOceanInBloom_FINALCUT_EN_US.en_US.vtt [20.8 KB] || NHQ_2024_0801_AnOceanInBloom_FINALCUT_EN_US.en_US.srt [21.9 KB] || NHQ_2024_0801_AnOceanInBloom_FinalCut_HD.mp4 (1920x1080) [3.2 GB] || NHQ_2024_0801_AnOceanInBloom_FINALCUT.mp4 (3840x2160) [5.6 GB] || NHQ_2024_0801_AnOceanInBloom_FINALCUT.webm (3840x2160) [412.0 MB] ||

NASA Scientific Visualization Studio

Fiona Gregory Jun 19, 2024

Giving a presentation on #algal_blooms monitoring by satellite at the Canadian Symposium on Remote Sensing in Halifax, Nova Scotia last week. The #CSRS is an excellent conference; everyone is so engaged and supportive. High quality of presentations; punches above its weight at only ~300 attendees #earthobservation

Fiona Gregory Jun 18, 2024

A short interview with the principal investigator of the algal bloom monitoring project I am working on. Dr. Rolf has a way with words. #algal_blooms #cyanobacteria #lakes #earthobservation
https://www.cbc.ca/player/play/video/9.6425175

How to stay safe on Alberta lakes when there's blue-green algae

Freshwater ecologist Rolf Vinebrooke talks with Nancy Carlson about how not all algae blooms are toxic and how researchers are using satellites to learn more about the bacteria.

CBC

CellBioNews Mar 6, 2024

#Microalgae with unusual #cell biology could lead to improved understanding of harmful #algal_blooms.

#Prorocentrum #dinoflagellates #proteomics #nucleus #chloroplast #photosystems

https://phys.org/news/2024-03-microalgae-unusual-cell-biology-algal.html

Microalgae with unusual cell biology could lead to improved understanding of harmful algal blooms

What are the molecular processes in a unicellular marine algae species that can cause harmful algal blooms? A research team led by microbiologist Prof. Dr. Ralf Rabus from the University of Oldenburg (Germany) has conducted the first detailed analyses of the unusual cell biology of Prorocentrum cordatum, a globally widespread species of the dinoflagellates group, using both advanced microscopic and proteomics approaches.

Phys.org

Fiona Gregory Dec 14, 2023

Satellites detect reason for fish kills in Oder River, Germany #algal_blooms
https://www.planet.com/pulse/early-warning-systems-monitoring-the-oder-river-with-eomap