Rows: 150
Columns: 24
$ year <int> 2013, 2013, 2013, 2013, 2013, 2013…
$ month <int> 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7…
$ day <int> 26, 26, 26, 3, 3, 3, 10, 10, 10, 1…
$ julian_date <int> 13177, 13177, 13177, 13184, 13184,…
$ sampling_date <int> 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4…
$ lake <chr> "Murray", "Miramar", "Poway", "Mur…
$ h2o_temp_c <dbl> 26.11111, 24.44444, 25.55556, 25.8…
$ air_temp_c <dbl> 27.22222, 30.50000, 32.38889, 24.1…
$ wind_speed_kph <dbl> 6.437376, 9.656064, 6.437376, 10.4…
$ ph <dbl> 8.85, 8.35, 8.99, 8.78, 8.45, 9.10…
$ total_alkalinity_ppm <int> 196, 203, 172, 261, 271, 240, 91, …
$ chlorophyll_a_ugL <dbl> 4.30, 2.54, 1.03, 5.10, 2.29, 2.01…
$ salinity_ppt <dbl> 0.3796530, 0.3787916, 0.3497159, 0…
$ pco2_water_ppm <dbl> 173.438, 582.045, 106.694, 273.342…
$ bacteria_number_per_L <int> NA, 14204, 18078, 10330, 18078, 14…
$ total_nitrogen_mgL <dbl> 3.170, 2.530, 1.630, 3.620, 3.120,…
$ total_phosphorus._mgL <dbl> 0.01720, 0.00837, 0.00868, 0.02150…
$ dissolved_organic_carbon_mgL <dbl> 4.450445, 2.726669, 3.482022, 5.21…
$ particulate_organic_nitrogen_mgL <dbl> 0.06960000, NA, 0.02266667, 0.0696…
$ particulate_organic_carbon_mgL <dbl> 0.30894545, NA, 0.07393939, 0.3427…
$ co2_flux_mmol_m_day <dbl> -2.039, 3.738, -2.646, -2.987, 6.5…
$ pco2_atmosphere_ppm <dbl> 399.06, 399.06, 399.06, NA, NA, NA…
$ zooplankton_community_avg_legnth_mm <dbl> 0.2245817, 0.7466187, 0.8807347, 0…
$ zooplankton_community_biomass_mgL <dbl> 0.9987292, 4.9275362, 9.3057214, 3…