Red Butte Canyon Weather Stations
This document describes the long-term weather stations located in Red Butte Canyon.
Originally, this info was taken from /RedButte/RBCWeatherStations.doc on the project Dropbox, last modified on 11/5/2007. It has been subsequently changed to reflect recent activity.
For a history of these stations, begin by reading:
Ehleringer et al. 1992. Red Butte Canyon Research Natural Area: History, Flora, Geology,Climate, and Ecology. Great Basin Naturalist 52(2), pp95-121.
The present weather stations have been running since 1982 but are positioned in the same locations as much older weather stations. At this time, the historical weather station data (prior to 1982) have not been aggregated, quality checked, and made available to the public.
Weather Station Site Metadata
\^ Station \^ Location description \^ Latitude \^ Longitude \^ Elevation \^ Historical data span \^ Current data span \^ | RB #1 | Biology Experimental Garden| 40° 46' | 110° 50' |1515 m | 1942 - 1964 | 1991 - present | | RB #2 | Head of RB Reservoir | 40° 47' | 111° 48' | 1653 m | 1942 - 1964 | 1982 - present | | RB #3 | Along RB Creek at Brush Basin | 40° 48' |111° 47' | 1865 m |1942 - 1952 | Retired | | RB #4 | Along RB Creek 100 m west of Beaver Cyn | 40° 48' | 111° 46' | 1890 m | 1942 - 1971 | 1982 - present| | RB #5 | Parleys Fork 100 m above inlet to RB Creek | 40° 47' | 111° 48' | 1753 m | 1942 - 1956 | Retired | | RB
6 | Top of Elk Fork | 40° 49' | 111° 46' | 2195 m | 1946 - 1971 | 1982
- present | More information on geology, hydrology, ecology, vegetation, and other aspects of the canyon can be found at the Red Butte Canyon Research Natural Area website.
Recent Status of the Stations
Weather stations 1,2,4, and 6 are currently running. All four collect daily data for temperature, relative humidity, wind speed, and rainfall. Weather station 1 also collects data every ten minutes for all above mentioned sensors as well as for wind direction and photosynthetically active radiation (PAR).
Log books are maintained for each weather station and, as of 11/5/2007, these were located in ASB room 510 in the eastern most cubicle. These, however, only extend back to 2000 despite efforts to locate any historical documentation of these stations. Each log book has a copy of a topo map with the approximate location marked.
Online maintenance log
There is an up-to-date maintenance log here.
Recent sensor history (>1982)
The begin date of sensors on the current weather stations is shown here. Data could be present up to present, except for occasional gaps in the record. Some of this info comes from the README.TXT file in the CurrentData folder of the RBWS Dropbox.
- Weather station 1:
- 02 Apr, 1992 - Begin air temp and precip sensors
- 30 Jun, 1995 - Begin wind sensor
- 08 Mar, 2000 - Begin RH and vapor pressure sensors
- Jun 2004 - Order of column headings changes, begin hourly data output
- 22 May, 2005 - Change hourly data output to 10 minute data output, add PAR sensor
- Weather station 2, 4, 6:
- 11 Aug, 1982 - Begin air temp, wind speed, PAR(?), and vapor pressure ( :!: see note above about problems with vp) sensors
- 01 Jun, 1991 - Light measurements seem to end around this time for all stations.
- 07 Apr & 14 May, 1992 - Begin WS2 & 4 precip sensor
- 26 Apr, 1993 - Begin WS6 precip sensor.
- June 2004 - Order of column headings change
- Oct 29, 2007 -> May 26, 2009 (all data, WS2, 4, 6) - :?: The last data collection prior to Fall 2011 appears to have been in late 2007. Is there a missing datafile between these dates? Was available memory on the storage module exceeded?
- Nov 10, 2012 -> May 31, 2013 (all data, WS4, 6) - The datalogger programs were erased, probably during a power outage. This is a hard lesson that programs need to be loaded on replacement storage modules (see the "preventing data loss" section here).
These data are made available to the general public at http://ecophys.utah.edu/download/Red_Butte_Weather/. Some summary data is viewable on the RBC website
Currently, the daily data for all weather stations for all years are
stored in a single file called
RBWSall_yymmdd.txt where the yymmdd is
the most recent data collected. This daily file is also saved as an
excel file that can be found online. Historically, the data were saved
by year. These data can be found in an archived folder online as excel
files in their original state
After compiling the data for all years and all stations into one file
and plotting all data, it was discovered that all relative humidity data
(or vapor pressure as it were) were logged incorrectly between 1992 and 2000. These data have been removed from the currently updated data file.
Quality Control of Web Files folder located in the project
Dropbox for more on this issue.
Equipment and maintenance procedures
Weather stations are visited twice yearly (spring and fall), or more often as necessary. As of 3/5/2012, a tool box containing all necessary storage modules, keypads, tools and manuals could be found in the Bowling Lab, fourth floor of ASB.
Each weather station consists of a tripod, enclosure, Campbell CR10 (or CR10x at WS1) datalogger, solar panel, battery/power supply, storage module, and a number of sensors (which vary slightly between sites).
Site Visit Protocol
- A tested, empty storage module for each station. Make sure it has the appropriate datalogger program loaded into location 8.
- CR10KD keypad
- Voltage/Multimeter for testing solar and battery voltages.
- Labeling tape and sharpie for labeling modules as they are swapped out.
- Screwdrivers, including a small standard (Campbell issue ones are easy to find)
- Electrical tape
- Any sensor hardware that needs to be replaced
- Extra serial cable (blue, three ended ones)
Upon visiting each site, one should write the date of visitation in the
log book along with the datalogger time, day of year, and year. With the
keypad plugged in, press
\*5 to view the time, then press
A to view
the day of year, then
A to view year. One should also write down all
currently measured values by pressing
\*6 and then
A to advance
through each value. Once the integrity of the station has been
established by visual inspection and datalogger inspection, remove the
existing storage module and replace it with one that has been erased and
tested in the lab.
IMPORTANT NOTE - Remember to load the weather station program into location 8 of the replacement storage module. This will keep the datalogger from forgetting its program after a power outage. See Preventing Data Loss.
Technical details on working with these dataloggers and storage modules can be found here.
The current programs running on each weather station can be found on the project Dropbox at: RedButte/CR10_Programs/Current Programs. One can also obtain the program straight from the datalogger by dumping it to the storage module using the appropriate keystrokes…see datalogger manual.
After all storage modules have been collected, they should be downloaded
using some version of Campbell Scientific software (currently
LoggerNet). All data should be plotted to check for integrity before
pasting into the
RBWSall_yymmdd file and uploading to the web.