![]() ![]() Five HOBO Data Logging Rain Gauges (RG3-M) were purchased and will operate concurrently with the Belfort RGs. They were not calibrated (normally done every other year) due to their precarious condition. We are in looking into replacing all units.Īpril 2022: The five remaining Belfort RGs were opened on April 1st. R01A is the only seven-day clock, all others are 24-hour clocks. Functioning Belfort RGs remain at 020B, N01B, N04D-lowland, K01B, and R01A. Three units failed calibration and will not be opened this season 004B, 002C, and N4D upland.Īpril 2021: N02B Belfort stopped working after less than one month and can not be calibrated. March 2020: all nine Belfort RGs calibrated. : converted apt011 data structure to long format, then merged with apt012 data cleaned up blank cells, updated old rain gauge code to the current rain gauge code (watershed code) : shut off the ‘HQ2’ and old ‘HQ’ rain gauge (current: total of 10 rain gauges – 020B, 002C, 004B, HQ, K01B, N01B, N02B, N4DF, N4DU, R01A) For the period of ‘’ – ‘’ added comments ‘old rain gauge’ in the comment column : use new rain gauge ‘Ott Pluvio2.’ We have the new measures from this new rain gauge. : added K01B, N01B, N02B, N4DF, N4DU, R01A (total of 10 rain gauges – : operating four rain gauges (HQ, 20B, 2C, 4B) ![]() Note: Missing data are signified with the ‘.’, and all data missing for the station of 4b, 2c, n4du, n2b in 2022. The HOBOs will be calibrated every year before they are deployed in the spring. They will follow the same operation schedule of April 1 to Oct 31 as the Belfort RGs. SAS formats data and generates daily date and 15-minute data from the Ott Pluvio2 rain gauge.ĭata is downloaded from the HOBO units every 1-2 weeks. In the fall, antifreeze is added to the collection bucket, see Ott Pluvio2 manual for details. The Ott Pluvio2 rain gauge processing program sends an e-mail to the weather station technician when the bucket is 3” below capacity and needs to be emptied. Strip charts are read and hand entered into APT011. The antifreeze/water system should be discarded and refilled if dilution of the antifreeze past levels of protection occurs. Following significant precipitation events, the level of the antifreeze/water mixture in the buckets should be checked to avoid overflow. The prairie rain gauges are sealed with plastic in the winter. Clock mechanisms require rewinding each week and pens must be refilled with ink. Catch buckets in the rain gauges are emptied at the time of chart changing except when the headquarters rain gauge is winterized with antifreeze (see Belfort manual for details). Both Belforts and HOBOs will run concurrently for the remaining life of the Belfort RGs.Ĭharts on all Belfort weighing rain gauges require changing each week. HOBO Data Logging Rain Gauges (RG3-M) were installed in April 2022 (004B, N04d-upland, 002C, N01B, and N04D-lowland) and April 2023 (R01A(formerly 020A), 020B, and K01B (formerly K04B). The prairie rain gauges are not operated during the winter months (November-March). Gauges in 020A and 002C have seven-day clocks. Gauges in R01A, 004B, N02B, N04D (upland and lowland), K04B, and N01B have 24-hour clocks for finer resolution of storm events. Additionally, nine other Belfort weighing rain gauges are installed on the Konza Prairie. Prior to the Pluvio, Belfort weighing rain gauges, one with a seven-day clock HQ1 and one with a 24-hour clock HQ2 (equipped with a wind screen) were used to record HQ precipitation. Data is collected and processed by a Campbell Scientific (CR800) data logger and downloaded via wireless internet every 15 minutes. It was installed in March 2010 at the Konza HQ site. Methods: Precipitation is measured at headquarters by an Ott Pluvio² rain gauge (continuous remotely monitored). Variable Measured: Daily amounts of precipitation (mm) Continuous from April 1 to October 31 for rain gauges on prairie. HOBO Data Logging Rain Gauges: R01A (C-30) 002C (M-31) N04D (J-27)-upland 020B (O-28) K01B (T-23) 004B (G-26) N01B (P-23) N04D (L-23)-lowlandįrequency of Sampling: Continuous sampling at headquarters weather station. Headquarters weather station (grid C-16): Ott Pluvio². Location of Sampling Stations: For the APT Experiment Ma p, please check APT map ![]()
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