Request for NALMS Student Video Series: "Lake Mixing and Stratification" NALMS is seeking videos of "Lake Mixing and Stratification" for inclusion in the video series hosted on the NALMS YouTube channel and website. In addition to the basic requirements (which can be found in the Video Evaluation Rubric), this video must also cover: Lake stratification: laboratory or animated visual example encouraged Explanation of the thermocline, epilimnion, and hypolimnion Lake mixing: Audio-visual explanation of fall overturn and spring stratification Seiche: Audio-visual explanation of wind-induced seiche movement Brief ...

Request for NALMS Student Video Series: "Measuring Secchi Depth" NALMS is seeking videos of "Measuring Secchi Depth" for inclusion in the video series hosted on the NALMS YouTube channel and website. In addition to the basic requirements (which can be found in the Video Evaluation Rubric), this video must also cover: Preparation steps - marking the rope to which the Secchi disk is attached at appropriate intervals Safety precautions and procedures, including boating safety if applicable Appropriate location of sampling in relation to the sun Notes on sunglasses and time of day when Secchi depth can be collected Detailed, step-b...