A5054244725- Landslides and related hazards
- Fire effects on ecosystems
- Hydrology and Watershed Management Studies
- Soil erosion and sediment transport
- Flood Risk Assessment and Management
- Aeolian processes and effects
- Planetary Science and Exploration
- Hydrology and Sediment Transport Processes
- Land Use and Ecosystem Services
- Rangeland and Wildlife Management
- Geology and Paleoclimatology Research
- Archaeology and Natural History
- Biocrusts and Microbial Ecology
- Economic and Environmental Valuation
- Fire Detection and Safety Systems
- Urban Agriculture and Sustainability
- Plant Ecology and Soil Science
- International Maritime Law Issues
- Geophysical Methods and Applications
- Environmental Conservation and Management
- Urban Green Space and Health
- Water Quality and Resources Studies
- Astro and Planetary Science
- Cryospheric studies and observations
- Tree Root and Stability Studies
Northern Arizona University
2020-2023
University of Idaho
2013
Astrogeology Science Center
2003
United States Geological Survey
2003
Geologic mapping of the northern plains Mars, based on Mars Orbiter Laser Altimeter topography and Viking Camera images, reveals new insights into geologic processes events in this region during Hesperian Amazonian Periods. We propose four successive stages lowland resurfacing likely related to activity near‐surface volatiles commencing at highland‐lowland boundary (HLB) progressing lower topographic levels as follows (highest elevations indicated): Stage 1, upper plains, Early Hesperian,...
Ecosystem-service production is strongly influenced by the landscape configuration of natural and human systems. Ecosystem services are not only produced consumed locally but can be transferred within among ecosystems. The time distance between producer consumer ecosystem considered lags in ecosystem-service provisioning. Incorporation heterogeneity lag effects into conservation incentives helps identify appropriate governance systems incentive mechanisms for effective management. These...
DATA REPORT article Front. Earth Sci., 13 April 2021 | https://doi.org/10.3389/feart.2021.649938
Abstract The 2019 Museum Fire burned in a mountainous region near the city of Flagstaff, AZ, USA. Due to high risk post‐fire debris flows and flooding entering city, we deployed network seismometers within burn area downstream drainages examine efficacy seismic monitoring for flows. Seismic instruments were during 2019, 2020, 2021 monsoon seasons following fire recorded several flow flood events, as well signals associated with rainfall, lightning wind. Signal power, frequency content, wave...
Dams are socio‐ecological structures fundamentally serving human population growth and economic development. Yet, dams have significantly reduced landscape connectivity, altered hydrologic geomorphic dynamics, a leading cause of freshwater biodiversity decline. As age no longer used for their original intended purpose, they increasingly threaten both humans ecosystems. Consequently, dam removal is an accepted strategy to restore river systems across the United States; since 1970s, more than...
The 2019 Museum Fire burned in a mountainous region near the city of Flagstaff, AZ, USA. Due to high risk post-wildfire debris flows and flooding entering city, we deployed network seismometers within burn area downstream drainages examine efficacy seismic monitoring for post-fire flows. Seismic instruments were during 2019, 2020, 2021 monsoon seasons following fire recorded several flow flood events, as well signals associated with rainfall, lighting wind. Signal power, frequency content,...
In the humid tropics, forest conversion and climate change threaten hydrological function stationarity of watersheds, particularly in steep terrain. As intensifies, shifting precipitation patterns expanding agricultural pastoral land use may effectively reduce resilience headwater catchments. Compounding this problem is limited long-term monitoring developing countries for planning an uncertain future. study, we asked which change, or use, more greatly affects stream discharge tropical...
In the Pinaleño Mountains in southeastern Arizona, fire severity has increased substantially while high recurrence intervals have decreased, leading to a change landscape response precipitation events. This altered led an increase surface runoff and debris flow activity. general, initiation processes been thoroughly investigated; however, longer-term acting on between events are poorly understood. These imperative study because they influence how quickly flow-scoured channels refill with...
Within the Coronado National Forest of southeastern Arizona, fire severity has increased substantially, and high recurrence intervals have decreased, particularly in our research area on Pinalen͂o Mountains. The increase can be attributed to historic suppression changes climate. also altered landscape response precipitation; decrease soil cohesion infiltration capacity following high-severity wildfires leads surface runoff, which initiate debris flows through erosion. As a result, study...
In the humid tropics, forest conversion and climate change threaten hydrological function stationarity of watersheds, particularly in steep terrain. As intensifies, shifting precipitation patterns expanding agricultural pastoral land use may effectively reduce resilience headwater catchments. Compounding this problem is limited long-term monitoring developing countries for planning an uncertain future. paper, we asked which change, or use, more greatly affects stream discharge tropical...