Skip to main content
North Temperate Lakes
US Long-Term Ecological Research Network
Toggle navigation
Search form
Search
About
Data
Research
Publications
People
Outreach
Links
Please select what columns you would like to include from High Resolution Water Temperature Dissolved Oxygen Chlorophyll pH - Crystal Lake
Column
Definition
Unit
sampledate
sample date
year4
Sampling year
nominalYear
daynum
Day of year
nominalDay
sample_time
time of day when sampled
depth_calculated
Water depth calculated based on sonde measurement. The sonde moves through the water column and measures depth which was corrected to actual measurement depths
meter
wtaer_temp
water temperature at a given depth
celsius
flag_water_temp
flag for water temperature value
pH
pH
pH
flag_ph
flag for data value of pH
chlorophylla
Chlorophyll a concentration
milligramsPerLiter
flag_chlorophylla
flag for chlorophyll a measurement
opt_do2
dissolved oxygen D-OPTO
milligramsPerLiter
flag_do2
flag for dissolved oxygen value
opt_dosat_raw
oxygen concentration in percent of saturation
percent
flag_opt_dosat_raw
flag for oxygen concentration as percent of saturation
Please choose any filters you would like to add.
Choose a minimum sampledate:
Choose a maximum sampledate
Choose a minimum year4:
Choose a maximum year4:
Choose a minimum depth_calculated:
Choose a maximum depth_calculated: