This online version of FLake allows calculation of the approximate temperature and mixing pattern in any shallow freshwater lake around the world. Everything you need to know are the geographical coordinates, average depth of the lake and some estimate of lake water clarity. Apart from providing with the outlook of the FLake functionality, the online version of the model can help answering many frequently asked questions about lakes:
External forcing of the model is adopted from the "Global Data Assimilation System (GDAS) Archive. It consists of 3-hourly, global, 0.5 degree latitude longitude datasets of main meteorological parameters as provided by the GDAS model output of National Centers for Environmental Prediction (NCEP). The model is run for several years applying repeatedly the same meteorological data unless the model output arrives at the steady-state year cycle.
Initial state of the model run is the fully mixed vertically temperature distribution. The initial temperature guess is drawn from the annual mean air temperature at the lake location. The validity of this approximation is supported by the fact that the model usually needs less than 5 iterations to arrive at the "perpetual year" solution.
Provide following input by filling the form at top of this page:
We are highly interested in your feedback. Please send us any bug reports, questions, recommendations, requests.
We take no responsability for the model results. Please remember: this online version relies on extremely simplified configuration and aimed at providing only rough overview of the real processes in lakes. Do not make any important decisions based on the model results.
The model is free for non-commercial use. Contact us if you apply the model in your research, education, hobby etc.
Here is a list of the 5 closest lakes found in the Global Lake Database. Click on your lake to insert the depth automatically