This data release includes time-series data from two monitoring stations in a small drainage basin burned in the 2014 Silverado Fire, Orange County, California. One station (upper station) is located in the headwaters of the study area (33 45’39.10”N, 117 35’17.48”W, WGS84). The other station (lower station) is located at the outlet of the study area (33 45’04.61”N, 117 35’12.54”W). The data were collected between November 15, 2014 and January 14, 2016. The data include continuous 1-minute time series of rainfall and soil water content recorded at the both stations and intermittent (during rain storms) 50-Hz time series of flow-induced ground vibrations recorded by geophones at the lower station. The soil water content measurements were made at 2 depths below the ground surface (5 and 10 cm) between 2014-11-15 and 2015-04-24, and 4 depths below the ground surface (5, 10, 15, and 20 cm) between 2015-04-24 and 2016-01-14. The ground vibrations were measured by two 4.5 Hz vertical axis geophones (Geospace SNG 11D/PC902/OPEN-30m) located approximately 3 m from the channel bank and separated by 11.8 m in the streamwise direction. Details of this study are described in the journal article: McGuire, L.A., Rengers, F.K., Kean, J.W., Staley, D.M., and Mirus B.B., (2017), Incorporating spatially heterogeneous infiltration capacity into hydrologic models with applications for simulating post-wildfire debris flow initiation, Hydrologic Processes.

This data release includes time-series data from two monitoring stations in a small drainage basin burned in the 2014 Silverado Fire, Orange County, California. One station (upper station) is located in the headwaters of the study area (33 45’39.10”N, 117 35’17.48”W, WGS84). The other station (lower station) is located at the outlet of the study area (33 45’04.61”N, 117 35’12.54”W). The data were collected between November 15, 2014 and January 14, 2016. The data include continuous 1-minute time series of rainfall and soil water content recorded at the both stations and intermittent (during rain storms) 50-Hz time series of flow-induced ground vibrations recorded by geophones at the lower station. The soil water content measurements were made at 2 depths below the ground surface (5 and 10 cm) between 2014-11-15 and 2015-04-24, and 4 depths below the ground surface (5, 10, 15, and 20 cm) between 2015-04-24 and 2016-01-14. The ground vibrations were measured by two 4.5 Hz vertical axis geophones (Geospace SNG 11D/PC902/OPEN-30m) located approximately 3 m from the channel bank and separated by 11.8 m in the streamwise direction. Details of this study are described in the journal article: McGuire, L.A., Rengers, F.K., Kean, J.W., Staley, D.M., and Mirus B.B., (2017), Incorporating spatially heterogeneous infiltration capacity into hydrologic models with applications for simulating post-wildfire debris flow initiation, Hydrologic Processes.

This data release contains point clouds obtained from three terrestrial laser scanner (TLS) surveys of a hillslope (NAD 83/11 N/ 412828E/ 3780128N) burned by the 2016 Fish Fire in the San Gabriel Mountains, CA, USA. The TLS surveys were completed with a Leica ScanStation C10. The first survey was made on 19 November 2016 prior to the first post-wildfire rainstorm. The second survey was performed on 5 January 2017. Two runoff-generating rainstorms occurred between the first and second surveys. The two rainstorms had peak fifteen-minute average rainfall intensities of 27 mm/h and 10 mm/h, respectively. The third survey was performed on 22 February 2017, following five additional runoff-generating post-wildfire rainstorms. Peak fifteen-minute average rainfall intensities for the five rainstorms were 8 mm/h, 11 mm/h, 16 mm/h, 25 mm/h, and 38 mm/h, respectively. Maps of hillslope erosion derived from the TLS data can be used to document hillslope erosion resulting from these two sets of rainstorms, including the initiation and growth of a substantial rill network. Additional details and a description of the study site can be found in the journal article: Hui T, McGuire LA, Rengers FR, Kean JW, Staley DM, Smith JB. Evolution of debris flow initiation mechanisms and sediment sources during a sequence of post-wildfire rainstorms. Journal of Geophysical Research. 2018.

This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Fire. The data include parameters of fire history|tree ring with a geographic location of New Mexico, United States Of America. The time period coverage is from 710 to -49 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.

This dataset represents 25 parallel longitudinal profiles that were extracted from terrestrial lidar point clouds taken during six survey periods. The six lidar surveys were conducted between 7 October 2010 and 8 October 2013. Over that time a colluvial hollow eroded into a fluvial channel. The longitudinal profiles show the topography of the colluvial hollow for each survey period. The width of the original colluvial hollow was approximately 1.25 m, and a longitudinal profile was extracted every 5 cm for the entire length of the hollow, resulting in 25 parallel longitudinal profiles. These data can be used to observe the transition of the colluvial hollow to a fluvial channel and furthermore they show the development of alternating steps and plunge pools. Within each of the 25 files, the column header describes the point number of the longitudinal profile, the distance downstream (meters), and the date of data collection. In addition, the file numbers represent profiles from west (1) to east (25).

This data release includes time-series data from a monitoring site located in a small (0.12 km2) drainage basin in the Las Lomas watershed in Los Angeles County, CA, USA. The site was established after the 2016 Fish Fire and recorded a series debris flows in the first winter after the fire. The station is located along the channel at the outlet of the study area (34 9’18.50”N, 117 56’41.33”W, WGS84). The data were collected between November 15, 2016 and February 23, 2017. The data include two types of time series: (1) continuous 1-minute time series of rainfall and flow stage recorded by a laser distance meter suspended over the channel (LasLomasContinuous.csv), and (2) 50-Hz time series of flow stage and flow-induced ground vibrations recorded by two geophones (LasLomasStorm.csv). The continuous file contains brief data gaps when the station was serviced, at which time the record of cumulative rainfall was reset to zero. The ground vibrations were measured by two 4.5 Hz vertical axis geophones (Geospace SNG 11D/PC902/OPEN-30m) located approximately 2 m from the channel bank. One geophone was located 6.4 m upstream from the laser distance meter. The second geophone was located 7.6 m downstream of the geophone. The geophone data is recorded in millivolts and the geophone constant is 32 Volts/(m/s). The equation for converting the laser distance measurements into flow stage above the bedrock in the channel is: Stage_laser (meters) = 4.320 meters – Distance_laser (millimeters) /1000. Time stamps are in Coordinated Universal Time (UTC). Details of this study are described in the journal article: Tang, H., McGuire, L.A., F.K. Rengers, Kean, J. W., Staley, D.M., and Smith, J.B. (2018), Evolution of debris flow initation mechanisms and sediment sources during a series of post-wildfire rainstorms, J. Geophys. Res., xxx, FYYYYY, doi:10.1029/2018JF004837.

This data release includes time-series data from a monitoring site located in a small drainage basin in the Arroyo Seco watershed in Los Angeles County, CA, USA (N3788964 E389956, UTM Zone 11, NAD83). The site was established after the 2009 Station Fire and recorded a series debris flows in the first winter after the fire. The data include three types of time-series: (1) 1-minute time series of rainfall, soil water content, channel bed pore pressure and temperature, and flow stage recorded by radar and laser distance meters (ArroyoSecoContinuous.csv); (2) 10-Hz time series of flow stage recorded by the laser distance meter during rain storms (ArroyoSecoStormLaser.csv), and (3) 2-second time series of rainfall and channel bed pore pressure and temperature during rain storms (ArroyoSecoStormPressureRain.csv). The laser and radar distance meters are suspended above the pore pressure sensor mounted in the bedrock of the channel. The equations for converting the distance measurements into flow stage above the pressure sensor (or stage of the stationary bed surface during times of no flow) are given by the equations Stage_laser (meters) = 2.107 meters – Distance_laser (meters), and Stage_radar (meters) = 2.156 meters – Distance_radar (feet)*0.3048 Details of this study are described in the journal article: Kean, J. W., D. M. Staley, and S. H. Cannon (2011), In situ measurements of post-fire debris flows in southern California: Comparisons of the timing and magnitude of 24 debris-flow events with rainfall and soil moisture conditions, J. Geophys. Res., 116, F04019, doi:10.1029/2011JF002005.

This data release includes time-series data from two monitoring stations in drainage basins burned in the 2009 Station Fire, Los Angeles County, California. Both stations are located near the upper boundary of their respective watershed and were installed to study the effects of vegetation recovery on hillslope hydrology and debris-flow occurrence. The coordinates of the Arroyo Seco site are 34°14'13.10"N, 118°11'44.72"W. The coordinates for the Dunsmore Canyon hillslope site are 34°15'54.27"N, 118°14'14.41"W. The data include 1-minute time series of rainfall, soil water content, soil temperature, and soil matric potential recorded at two locations at both stations: AS1, AS2, DC1, DC2. The two locations at each site have the primary distinction of being in a non-vegetated location (AS1, DC1) or under vegetated canopy (AS2, DC2). The soil water content measurements were made at 3 depths below the ground surface in each pit (10, 25, and 50 cm). Soil temperature measurements were made in each pit (10 cm). Soil matric potential was measured with a tensiometer at AS1 (50 cm) and DC2 (50 cm), and includes an integrated soil temperature reading from the same instrument. All available data from the time period is included, but occasional lapses exist in the time-series due to various system issues and/or maintenance. The tensiometer data includes erroneous values where in-situ matric potential is outside of the range of the instrument and a data quality flag has been added to aid in the interpretation of these. Details of this study are described in the journal article: Smith, J.B., and J.W. Kean. 2018. Long-term soil-water tension measurements in semiarid environments: a method for automated tensiometer refilling. Vadose Zone J. 17:180070. doi:10.2136/vzj2018.04.0070.

This data release includes time-series data from two monitoring stations in drainage basins burned in the 2009 Station Fire, Los Angeles County, California. Both stations are located near the upper boundary of their respective watershed and were installed to study the effects of vegetation recovery on hillslope hydrology and debris-flow occurrence. The coordinates of the Arroyo Seco site are 34°14'13.10"N, 118°11'44.72"W. The coordinates for the Dunsmore Canyon hillslope site are 34°15'54.27"N, 118°14'14.41"W. The data include 1-minute time series of rainfall, soil water content, soil temperature, and soil matric potential recorded at two locations at both stations: AS1, AS2, DC1, DC2. The two locations at each site have the primary distinction of being in a non-vegetated location (AS1, DC1) or under vegetated canopy (AS2, DC2). The soil water content measurements were made at 3 depths below the ground surface in each pit (10, 25, and 50 cm). Soil temperature measurements were made in each pit (10 cm). Soil matric potential was measured with a tensiometer at AS1 (50 cm) and DC2 (50 cm), and includes an integrated soil temperature reading from the same instrument. All available data from the time period is included, but occasional lapses exist in the time-series due to various system issues and/or maintenance. The tensiometer data includes erroneous values where in-situ matric potential is outside of the range of the instrument and a data quality flag has been added to aid in the interpretation of these. Details of this study are described in the journal article: Smith, J.B., and J.W. Kean. 2018. Long-term soil-water tension measurements in semiarid environments: a method for automated tensiometer refilling. Vadose Zone J. 17:180070. doi:10.2136/vzj2018.04.0070.

Rainfall, volumetric soil-water content, video, and geophone data characterizing postfire rainfall and runoff were collected at two stations in the 2020 Calwood Fire Burn Area in Colorado. This release contains data from stations at two sites named Heil Ranch (40° 8' 43.47" N, 105° 20' 26.352" W) and Calwood (40° 9' 4.76" N, 105° 21' 20.79" W). The data presented here were collected from April 8, 2021, to November 7, 2023 at the Heil Ranch station, and from May 7, 2021, to October 3, 2022 at the Calwood station. Station names (Heil and Calwood) were used as a prefix for the data files. Each data type is described below. Raw Cumulative Data: Cumulative rainfall data, xxxxCumulativeRainfall.csv are contained in a comma separated value (CSV) file (here xxxx is replaced with either Heil or Calwood, depending on the station). 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]), CumulativeRainfall (cumulative rainfall since the beginning of the record [mm]), and VWC (volumetric water content [V/V]) at three depths below ground surface (1 = 10 cm, 2 = 30 cm, 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 greater than or equal to 5 minutes or with an accumulation greater than or equal to 2.54 mm until the last rain gauge tip followed by at least 8 hours without precipitation. Each storm was then assigned a storm ID starting at 0. The storm record data, xxxxStormRecord.csv (where xxxx is replaced with either Heil or Calwood, depending on the station), 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], timestamp when at least 0.2mm of rain is detected), StormStop [yyyy-mm-dd hh:mm:ss-tz] ([UTC], timestamp of last rain gauge tip followed by at least 8 hours without precipitation), StormDepth [mm] (the 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] (the time of the peak 5-minute rainfall intensity), I-10 time yyyy-mm-dd hh:mm:ss-tz] (the time of the peak 10-minute rainfall intensity), I-15 time [yyyy-mm-dd hh:mm:ss-tz] (the time of the peak 15-minute rainfall intensity), I-30 time [yyyy-mm-dd hh:mm:ss-tz] ] (the time of the peak 30-minute rainfall intensity), I-60 time [yyyy-mm-dd hh:mm:ss-tz] (the time of the peak 60-minute rainfall intensity), VWC (volumetric water content at three depths below ground surface (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 [V/V]). Geophone Data: Geophone data, xxxxGeophoneData.zip, are contained in comma separated value (CSV) files (here xxxx is replaced with either Heil or Calwood, depending on the station). The geophone data are labeled by 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 two geophones sampled at 50 Hz, one upstream and one downstream, and were placed 16 m apart at the Heil station and 14.9 m apart at the Calwood 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