1. Prepare field data sheets and print them onto waterproof paper.
2. Inventory bottles and order more from Colleen Sylvester if needed.
3. Check that there are enough of the various filters and pre-weighed TPM filters needed for sampling.
4. Print bottle labels and label bottles. Put labels on bottles, including S, V, A, N, DIC/DOC, pH, phytoplankton and zooplankton bottles. Remember to write the code on the SLOH bottles. See 'Southern Lakes LTER Bottle Codes'. Put bottles in plastic bags arranged by lake and depth.
6. Prepare filters:
- Chlorophyll: GFF (for integrated and discrete depths). See ‘Southern Lakes LTER Filters’
7. Check that there are no air bubbles in the dissolved oxygen probe and change the membrane if needed. Turn on the probe and make sure that adjustments will allow for calibration after it is properly warmed up.
8. Pack all necessary field gear. See 'SLTER Open Water and Winter Sampling List’
9. Fill the water and ethanol bottles used for zooplankton collection and preservation