NWDTW 2024

This information is intended for a presentation, rather than a training course.
Multiple techniques are being used in two Colorado reservoir systems (the Three Lakes System near Granby, Colorado, and Blue Mesa Reservoir near Gunnison, Colorado) to monitor Harmful Algal Blooms (HABs). The techniques are continuous monitoring of fluorescence of total chlorophyll and phycocyanin, discrete sampling for chlorophyll-a and algal taxonomy, and construction of satellite (Sentinel 2) models mapping chlorophyll-a concentrations. In the presentation we will compare the results of the different monitoring techniques with the timing of HABs in the reservoirs. The different techniques have different utility in each of the reservoirs and used in combination help track the occurrence of HABs throughout the ice-free season.