Publications by Trent Biggs
Boca Rio Manta recalibration 2021-11 to 2022-04
Read in Boca Rio Manta time series, 2021-11-03 to 2022-04-28, calibration logs, back-calibrate RV values, and recalculate TRYP and CDOM values from the RV values and a “stable” calibration based on long-term mean RV-TYRP values for the Boca Rio sonde (SN 4105). Read in Boca Rio Manta data ## Date.time Temperature pH ORP Depth...
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Exercise 5 Water balance
In this exercise, you will: - read USGS streamflow data into R - calculate monthly discharge - calculate runoff coefficients 0. Load the libraries you’ll need. The USGS has a website dedicated to R: https://owi.usgs.gov/R/ There are packages for streamflow and water quality data retrieval and analysis. Here, we install and use the dataRetr...
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Calibration logs analysis
This document analyses the calibration logs for 3 manta sondes, calibration dates 2019-2022. TRYP 100ppb TRYP Sonde 4105 seems quite stable. Sonde 3594 less stable. ## [1] "Mean TRYP RV for 100ppb, sonde 3594, pre-2021: 0.017" ## [1] "Mean TRYP RV for 100ppb, sonde 3594, post-2021, exclude values > 0.03 RV: 0.012" ## [1] "Mean TRYP RV for 100...
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Water quality monitoring report, IBWC gage 2022-11-14 download
Sonde at IBWC gage Serial number 12215259 1. Table of QAQC notes. Table created using field notes and visual interpretation of time series. Notes file is Visual examination performed on wqdatalive and using plot_ly in 2_interactive_qaqc_each_parm.R. X = parameter invalid (sensor dry, sedimentation, malfunction) CAL = calibration problem; fix...
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Water quality monitoring report, 2022-11-14 download v2
Sonde at IBWC gage Serial number 12215259 1. Table of QAQC notes. Table created using field notes and visual interpretation of time series on wqdatalive and using plot_ly in 2_interactive_qaqc_each_parm.R (see interactive plot of Turbidity.side.scatter below). X = parameter invalid (sensor dry, sedimentation, malfunction) CAL = calibration p...
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GEOG576 Exercise 4 Rainfall Analysis
I. Introductory commands Some important commands are listed below. The . indicate blanks where you would fill in missing info. ?... # Loads help files for a specific command ?getwd # Loads help files for "getwd" ??getwd # Searches for the word "getwd" in all the help files setwd(.) ...
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GEOG 576 Water Quality and Q-C plots
In this Exercise you will Load water quality data Plot Q-C relationships Use power functions to quantify the Q-C relationships Plot discharge data on the plot to determine hydrological conditions at time of sampling 0. Water quality data The water quality data have been downloaded and formatted for you. Water quality data can be downloaded fro...
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GEOG576 Rainfall Runoff Analysis Los Penasquitos
In this exercise, you will: - read USGS streamflow data into R - calculate monthly discharge - calculate runoff coefficients 0. Load the libraries you’ll need. The USGS has a website dedicated to R: https://owi.usgs.gov/R/ There are packages for streamflow and water quality data retrieval and analysis. Here, we install and use the dataRetrie...
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Exercise 4: Rainfall analysis in R, with normal probability plot
I. Introductory commands Some important commands are listed below. The . indicate blanks where you would fill in missing info. ?... # Loads help files for a specific command ?getwd # Loads help files for "getwd" ??getwd # Searches for the word "getwd" in all the help files setwd(.) ...
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GEOG 576 Flow duration curves and stormflow
In this exercise you will: Calculate flow-duration curves for different periods in Los Penasquitos. Plot storm-total rainfall vs runoff for Los Penasquitos. 0. Load libraries. library(dataRetrieval) library(hydroTSM) I. Flow duration curves A. Load USGS daily streamflow data for Los Penasquitos See Exercise 5 (I’m not showing the code). Do...
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