DOI: 10.5066/p13wvrux
title: Rainfall, Video, and Geophone Data from the Hermit's Peak/ Calf Canyon Fire Burn Area, New Mexico, June 2022 to June 2024

description: Precipitation, volumetric soil-water content, videos, and geophone data characterizing postfire debris flows were collected at the 2022 Hermit’s Peak Calf-Canyon Fire in New Mexico. This dataset contains data from June 22, 2022, to June 26, 2024. The data were obtained from a station located at 35° 42’ 28.86” N, 105° 27’ 18.03” W (geographic coordinate system). Each data type is described below.

Raw Rainfall Data: Rainfall data, Rainfall.csv, are contained in a comma separated value (.csv) file. The data are continuous and sampled at 1-minute intervals. The columns in the csv file are TIMESTAMP(UTC), RainSlowInt (the depth of rain in each minute [mm]), CumRain (cumulative rainfall since the beginning of the record [mm]), and VWC# (volumetric water content [V/V]) at three depths (1 = 10 cm, 2=30 cm, and 3=50 cm). VWC values outside of the range of 0 to 0.5 represent sensor malfunctions and were replaced with -99999 .

Storm Record: We summarized the rainfall, volumetric soil-water content, and geophone data based on rainstorms. We defined a storm as rain for a duration >= 5 minutes or with an accumulation > 2.54 mm. Each storm was then assigned a storm ID starting at 0. The storm record data, StormRecord.csv, provides peak rainfall intensities and times and volumetric soil-water content information for each storm. The columns from left to right provide the information as follows: ID, StormStart [yyyy-mm-dd hh:mm:ss-tz] ([UTC], calculated as any time at least 0.2 mm of rain is detected), StormStop [yyyy-mm-dd hh:mm:ss-tz] ([UTC], timestamp of last rain gauge tip followed by at least 6 hours without precipitation), StormDepth [mm] (the total amount of rain that fell in the storm), StormDuration [h] (length of storm), I-5 [mm h-1] (peak 5-minute rainfall intensity), I-10 [mm h-1] (peak 10-minute rainfall intensity), I-15 [mm h-1] (peak 15-minute rainfall intensity), I-30 [mm h-1] (peak 30-minute rainfall intensity during the storm), I-60 [mm h-1] (peak 60-minute rainfall intensity), I-5 time [yyyy-mm-dd hh:mm:ss-tz] ([UTC], the time of the peak 5-minute rainfall intensity), I-10 time [yyyy-mm-dd hh:mm:ss-tz] ([UTC], the time of the peak 10-minute rainfall intensity), I-15 time yyyy-mm-dd hh:mm:ss-tz] ([UTC], the time of the peak 15-minute rainfall intensity), I-30 time yyyy-mm-dd hh:mm:ss-tz] ] ([UTC], the time of the peak 30-minute rainfall intensity), I-60 time [yyyy-mm-dd hh:mm:ss-tz] [UTC], (the time of the peak 60-minute rainfall intensity), VWC (volumetric water content [V/V] at three depths (1 = 10 cm, 2 = 30 cm, 3 = 50 cm) at the start of the storm, the time of the peak 15-minute rainfall intensity, and the end of the storm), Velocity [m s-1] of the flow, and Event (qualitative observation of type of flow from video footage). VWC values outside of the range of 0 to 0.5 represent sensor malfunctions and were replaced with -99999. Velocity was only calculated for flows with a noticeable surge as the rest of the signal is not sufficient for a cross-correlation, and Event was only filled for storms with quality video data. Values of -99999 were assigned for these columns for all other storms.

Geophone Data: Geophone data, GeophoneData.zip, are contained in comma separated value (.csv) files labeled by ‘storm’ and the corresponding storm ID in the storm record and labeled IDa and IDb if the geophone stopped recording for more than an hour during the storm. The data was recorded at two geophones sampled at 50 Hz, one 11.5 m upstream from the station and one 9.75 m downstream from the station. Geophones were triggered to record when 1.6 mm of rain was detected during a period of 10 minutes, and they continued to record for 30 minutes past the last timestamp when this criteria was met. The columns in each csv file are TIMESTAMP [UTC], GeophoneUp_mV (the upstream geophone [mV]), GeophoneDn_mV (the downstream geophone [mV]). Note that there are occasional missed samples when the data logger did not record due to geophone malfunction when data points are 0.04 s or more apart.

Videos: The videos stormID_mmdd.mp4 (or .mov) are organized by storm ID where one folder contains data for one storm. Within folders for each storm, videos are labeled by the timestamp in UTC of the end of the video as IMGPhhmm. Some videos in the early mornings or late evenings, or in very intense rainfall, have had brightness and contrast adjustments in Adobe Premiere Pro for better video quality and are in MP4 format. All raw videos are in MOV format. The camera triggered when a minimum of 1.6 mm of rain fell in a 10-minute interval and it recorded in 16-minute video clips until it was 30 minutes since the last trigger. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.