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chalgrove_lake_general_metadata.md

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General Metadata for Chalgrove Lake YSI Data

Files

Specific metadata for each deployment can be found as text files with the file format of:

chalgrove_lake_DDMonthYYYY_metadata.txt

Where DDMonthYYY is the date that the deployment ended.

File Created

  • 2019-04-12 by KF

File Modified

  • 2019-10-31 by KF - added the descriptions of the total algae variables

Description

These data are from a YSI EXO2 multiparameter sonde deployed at approximatly 0.7 m in Chalgrove Lake (37.242983 N, -78.464116 W) in approximately 4 m of water.

Sonde Specifics

The specific sensors and SNs deployed are on the metadata specific to each deployment but generally the sonde has:

  • Temperature
  • Conductivity
  • pH
  • ODO
  • Total Algae

Measurement Parameters, units, and Variable Names

  • date.time = the combined date and time of the measurement (YYYY-MM-DD HH:MM:SS)
  • date = the sampling date reported by the YSI (M/D/YYYY)
  • time = the sampling time reported by the YSI (HH:MM:SS)
  • fract_sec = the smapling fractions of a second reported by the YSI
  • site_name = the site name on the YSI deployment (left blank)
  • chl_RFU = the chlorophyll concentration (RFU)
  • chl_conc = the chlorophyll concentration (ug/L)
  • cond = the conductivity (uS/cm)
  • nLF_cond = the nLF conductivity (uS/cm)
  • perc_ODO = the percent oxygen saturation
  • perc_local_ODO = the percent local oxygen saturation
  • ODO_conc = the dissolved oxygen concentration (mg/L)
  • sal = the salinity (psu)
  • sp_cond = the specific conductivity (uS/cm)
  • BGA_PC_RFU = the Blue-green algae Phycocyanin concentration (RFU)
  • BGA_PC_conc = the Blue-green algae Phycocyanin concentration (ug/L)
  • TDS = the total dissolved solids (mg/L)
  • pH = the pH
  • pH mV = the millivolts of the pH sensor
  • temp = the temperature (dC)
  • battery = the battery voltage
  • cable_pwr = the cable power