ABSTRACT:

This data is part of a project studying the effects of wildfire on the Illilouette Creek Basin, a watershed within Yosemite National Park. Three temporary weather stations were installed under distinct types of vegetation cover. Each station measures air temperature, relative humidity, rainfall (the rain gage is not heated, so only the portion of snowfall that melts within the gage is measured), wind speed and direction, solar radiation, and both soil moisture and temperature at three depths. These measurements are recorded every 10 minutes, beginning in the summer of 2015. Station B is located in a shrub field within an area that burned at high severity in 2004 and in 2017 (Empire Fire).. For descriptions of the data format and units, see the included WeatherStnMetadata.xlsx file.

ABSTRACT:

This data is part of a project studying the effects of wildfire on the Illilouette Creek Basin, a watershed within Yosemite National Park. Three temporary weather stations were installed under distinct types of vegetation cover. Each station measures air temperature, relative humidity, rainfall (the rain gage is not heated, so only the portion of snowfall that melts within the gage is measured), wind speed and direction, solar radiation, and both soil moisture and temperature at three depths. These measurements are recorded every 10 minutes, beginning in the summer of 2015. Station C is located in a wetland within an area that burned most recently in 2004 and in 2017 (Empire Fire).. For descriptions of the data format and units, see the included WeatherStnMetadata.xlsx file.

ABSTRACT:

This data is part of a project studying the effects of wildfire on the Illilouette Creek Basin, a watershed within Yosemite National Park. Three temporary weather stations were installed under distinct types of vegetation cover. Each station measures air temperature, relative humidity, rainfall (the rain gage is not heated, so only the portion of snowfall that melts within the gage is measured), wind speed and direction, solar radiation, and both soil moisture and temperature at three depths. These measurements are recorded every 10 minutes, beginning in the summer of 2015. Station A is located under a dense mixed conifer canopy in an area that burned at low severity in 2004. For descriptions of the data format and units, see the included WeatherStnMetadata.xlsx file.

ABSTRACT:

This dataset is part of a project assessing the impacts of wildfires on the water balance of the Illilouette Creek Basin in Yosemite National Park. Three weather stations were mounted on poles in an area that had burned under various severities in 2004 and in 2017 (Empire Fire). Each station is located in a distinct vegetation type: closed canopy mixed conifer, shrubfield (dominated by Ceanothus cordulatus), and a wetland. Each weather station has at least two time lapse cameras capturing images four times per day. These images were used to calculate the depth of snow by comparing the height of the snowpack against the weather station pole or a nearby tree to known heights along the pole or tree. Measurements from different cameras at the same station may differ slightly from each other if snow piles up against the side of a pole, or if snow melts preferentially near a pole, but these differences are small compared to the maximum depths of snow. The data shows that peak snowpack was deepest at the wetland site, and shallowest under the closed canopy. Spring snowmelt also finished earliest in the closed canopy site.

ABSTRACT:

These vegetation maps were created in order to assess the changes in land cover caused by 40 years of managed wildfire within the Illilouette Creek Basin of Yosemite National Park. Between 1980 and 1973, only 8ha are known to have burned within the watershed. Since 1973, over half of the watershed has burned at least once (including 75% of the vegetated area). Vegetation was divided into the following categories using eCognition software and the best available aerial imagery: conifer forest, shrubland, sparse vegetation, dense meadow, and aspen.

ABSTRACT:

This is a collection of three weather station time series data from September 2016 to September 2020. These weather stations were installed to study the long-term effects of fire on local hydrology by measuring microclimate in three nearby sites with different post-fire vegetation. Data is collected at 10 min interval. Variables include: wind speed and direction, air temperature, relative humidity precipitation, insolation, soil moisture and soil temperature at 3 different depths: 12cm, 60 cm, and 100 cm. The weather stations are located in Sugarloaf Creek Basin by Comanche Meadow. Forested, meadow, and shrub sites are represented.

ABSTRACT:

This data is part of a project studying the effects of wildfire on the Illilouette Creek Basin, a watershed within Yosemite National Park. Three temporary weather stations were installed under distinct types of vegetation cover. Each station measures air temperature, relative humidity, rainfall (the rain gage is not heated, so only the portion of snowfall that melts within the gage is measured), wind speed and direction, solar radiation, and both soil moisture and temperature at three depths. These measurements are recorded every 10 minutes, beginning in the summer of 2015. Station A is located under a dense mixed conifer canopy in an area that burned at low severity in 2004 and in 2017 (Empire Fire). For descriptions of the data format and units, see the included WeatherStnMetadata.xlsx file.

ABSTRACT:

This data is part of a project studying the effects of wildfire on the Illilouette Creek Basin, a watershed within Yosemite National Park. Three temporary weather stations were installed under distinct types of vegetation cover. Each station measures air temperature, relative humidity, rainfall (the rain gage is not heated, so only the portion of snowfall that melts within the gage is measured), wind speed and direction, solar radiation, and both soil moisture and temperature at three depths. These measurements are recorded every 10 minutes, beginning in the summer of 2015. Empire Fire has burned through thestations at various severities in the fall of 2017. For descriptions of the data format and units, see the included WeatherStnMetadata.xlsx file.

ABSTRACT:

This dataset is part of an effort to sample soil moisture in Illilouette Creek Basin in Yosemite National Park. The effort spans 2014 through 2018 with over 9,000 collected soil moisture samples across different vegetation types and topographic locations. Soil moisture was measured to a depth of 12 cm using HydroSenseII soil moisture sensors. The basin has undergone multiple fires, with the most recent one in 2017 (Empire Fire). Data collected in 2018 includes both burned and unburned plots.

ABSTRACT:

These vegetation maps were created in order to assess the changes in land cover caused by 40 +years of managed wildfire within the Sugarloaf Creek Basin of Kings Canyon National Park. The study watershed is over 125 square km. Vegetation classification categories are: mixed conifer, shrub, granite, mixed meadow, water, and sparse meadow.

ABSTRACT:

This vegetation map was created in order to assess the changes in land cover caused by 40 +years of managed wildfire within the Sugarloaf Creek Basin of Kings Canyon National Park. This map represents fire-suppressed Sugarloaf Creek Basin. The study watershed is over 125 square km. Vegetation classification categories are: mixed conifer, shrub, granite, mixed meadow, water, and sparse meadow.

ABSTRACT:

This vegetation map was created in order to assess the changes in land cover caused by 40 +years of managed wildfire within the Sugarloaf Creek Basin of Kings Canyon National Park. The study watershed is over 125 square km. Vegetation classification categories are: mixed conifer, shrub, granite, mixed meadow, water, and sparse meadow.

ABSTRACT:

This data is part of a project studying the effects of wildfire on the Illilouette Creek Basin, a watershed within Yosemite National Park. Three temporary weather stations were installed under distinct types of vegetation cover. Each station measures air temperature, relative humidity, rainfall (the rain gage is not heated, so only the portion of snowfall that melts within the gage is measured), wind speed and direction, solar radiation, and both soil moisture and temperature at three depths. These measurements are recorded every 10 minutes, beginning in the summer of 2015. Station C is located in a wetland within an area that burned most recently in 2004 and in 2017 (Empire Fire).. For descriptions of the data format and units, see the included WeatherStnMetadata.xlsx file.

ABSTRACT:

This data is part of a project studying the effects of wildfire on the Illilouette Creek Basin, a watershed within Yosemite National Park. Three temporary weather stations were installed under distinct types of vegetation cover. Each station measures air temperature, relative humidity, rainfall (the rain gage is not heated, so only the portion of snowfall that melts within the gage is measured), wind speed and direction, solar radiation, and both soil moisture and temperature at three depths. These measurements are recorded every 10 minutes, beginning in the summer of 2015. Station A is located under a dense mixed conifer canopy in an area that burned at low severity in 2004 and in 2017 (Empire Fire). For descriptions of the data format and units, see the included WeatherStnMetadata.xlsx file.

ABSTRACT:

This data is part of a project studying the effects of wildfire on the Illilouette Creek Basin, a watershed within Yosemite National Park. Three temporary weather stations were installed under distinct types of vegetation cover. Each station measures air temperature, relative humidity, rainfall (the rain gage is not heated, so only the portion of snowfall that melts within the gage is measured), wind speed and direction, solar radiation, and both soil moisture and temperature at three depths. These measurements are recorded every 10 minutes, beginning in the summer of 2015. Station B is located in a shrub field within an area that burned at high severity in 2004 and in 2017 (Empire Fire).. For descriptions of the data format and units, see the included WeatherStnMetadata.xlsx file.

ABSTRACT:

This data is part of a project studying the effects of wildfire on the Illilouette Creek Basin, a watershed within Yosemite National Park. Three temporary weather stations were installed under distinct types of vegetation cover. Each station measures air temperature, relative humidity, rainfall (the rain gage is not heated, so only the portion of snowfall that melts within the gage is measured), wind speed and direction, solar radiation, and both soil moisture and temperature at three depths. These measurements are recorded every 10 minutes, beginning in the summer of 2015. Empire Fire has burned through thestations at various severities in the fall of 2017. For descriptions of the data format and units, see the included WeatherStnMetadata.xlsx file.

ABSTRACT:

This repository includes data used within manuscript titled "Freeze-Thaw Processes Degrade Post-fire Water Repellency in Wet Soils" submitted to the Hydrological Processess Journal.

Wildfires can cause heightened soil water repellency (hydrophobicity), which reduces infiltration while increasing erosion and flooding from post-fire rainfall. Post-fire soil water repellency degrades over time, often in response to repeated wetting and drying of the soil.

This study characterized the changes in hydrophobicity of Sierra Nevada mountain soils exposed to different combinations of wet-dry and freeze-thaw cycling. There are five treatments total consisted of 11 cycles and replicated 6 times. These treatments are:
1) WD -> wet/dry.
2) WDFT -> wet/dry/freeze/thaw
3) WFTD -> wet/freeze/thaw/dry
4) WFT -> wet/freeze/thaw (soil is wetted once but never dried)
5) DFT -> dry/freeze/thaw (soil is never wetted)

After each, cycle molarity of ethanol test (MED) was used to assess soil hydrophobicity. MED results are recorded in "MED.xlsx"

Soil Organic Matter (SOM) is often associated with soil hydrophobicity, thus we also measured SOM content of each cycle and treatment with 3 replicas for each using Walkley-Black test. SOM results are recorded in "SOM.xlsx"

ABSTRACT:

This resource includes code and data used within manuscript titled "Freeze-Thaw Processes Degrade Post-fire Water Repellency in Wet Soils" submitted to the Hydrological Processes Journal.

Wildfires can cause heightened soil water repellency (hydrophobicity), which reduces infiltration while increasing erosion and flooding from post-fire rainfall. Post-fire soil water repellency degrades over time, often in response to repeated wetting and drying of the soil.

This study characterized the changes in hydrophobicity of Sierra Nevada mountain soils exposed to different combinations of wet-dry and freeze-thaw cycling. There are five treatments total consisted of 11 cycles and replicated 6 times. These treatments are:
1) WD -> wet/dry.
2) WDFT -> wet/dry/freeze/thaw
3) WFTD -> wet/freeze/thaw/dry
4) WFT -> wet/freeze/thaw (soil is wetted once but never dried)
5) DFT -> dry/freeze/thaw (soil is never wetted)

After each, cycle molarity of ethanol test (MED) was used to assess soil hydrophobicity. MED results are recorded in "MED.xlsx" under "MED and SOM Data" collection.

Soil Organic Matter (SOM) is often associated with soil hydrophobicity, thus we also measured SOM content of each cycle and treatment with 3 replicas for each using Walkley-Black test. SOM results are recorded in "SOM.xlsx" under "MED and SOM Data" collection.

Furthermore, soils of different hydrophobicities and one opportunistic sample of the 7th cycle of wet/dry/freeze/thaw treatment were imaged using scanning electron microscopy (SEM) in a BSE mode at 100 times resolution. Sizes of each individual aggregate were measured using ImageJ software and their area was recorded. SEM images along with recorded grain sizes can be found in the "SEM" collection.

ABSTRACT:

This repository includes data used within manuscript titled "Freeze-Thaw Processes Degrade Post-fire Water Repellency in Wet Soils" submitted to the Hydrological Processes Journal.

Soils of different hydrophobicities and one opportunistic sample of the 7th cycle of wet/dry/freeze/thaw treatment were imaged using scanning electron microscopy (SEM) in a BSE mode at 100 times resolution. Sizes of each individual aggregate were measured using ImageJ software and their area was recorded.

File abbreviation notation:
NB=not burned soil sample with MED value of 6.5%
VB=very burned sample with MED value of 0%
B="optimally" burned sample with MED value of 16.5%
1_3_6=opportunistic sample of the 7th cycle of wet/dry/freeze/thaw treatment