Emeritus
Email:
damartin@usgs.gov
Office Phone:
303-541-3058
ORCID:
0000-0001-8237-0838
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The objectives of my current research are to 1. Understand the water quality effects of fire, 2. Measure the effects of fire on the carbon cycle and other biogeochemical cycles, 3. Characterize the combustion products of wildfire, mainly ash and charcoal, and 4. Link post-fire responses and the composition, physical characteristics, and reactivity of ash and charcoal to measures of burn severity detected on the ground or using remotely-sensed data. The overarching objective of my research is to understand runoff, erosion, deposition, and water quality effects after wildfire.
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This is a multi-disciplinary community of scientists who study the effects of wildfire disturbance on the built and natural environment. The mission is to understand natural processes such as infiltration, rainfall-runoff, erosion, sediment and chemical transport, and water quality effects. The focus is on obtaining field-based measurements that can be used to improve or develop models for use by emergency, land and water supply managers as tools for decision making.
Tags: ash,
contaminants,
deposition,
erosion,
floods, All tags...
runoff,
sediment transport,
suspended sediment,
turbidity,
water quality, Fewer tags
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The consequence of the 1996 Buffalo Creek wildfire disturbance and a subsequent high-intensity summer convective rain storm (~100 mm h-1) was the deposition of a sediment superslug in the Spring Creek basin (26.8 km2) of the Front Range Mountains in Colorado. Changes in the superslug near the confluence of Spring Creek with the South Platte River were monitored by cross-section surveys at 18 nearly equally-spaced cross sections along a 1500 m study reach for 18 years (1996-2014) to understand the evolution and internal stratigraphy of this type of disturbance in response to different geomorphic processes. These data consist of 18 Excel files (one for each cross section) containing worksheets corresponding to each...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Colorado,
Front Range,
Geomorphology,
Jefferson County,
Spring Creek, All tags...
USGS Science Data Catalog (SDC),
deposition,
erosion,
floods,
geomorphology,
hydrology,
sediment transport, Fewer tags
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In response to the 2010 Fourmile Canyon fire near Boulder, Colorado, the U.S. Geological Survey collected data to support investigations into the magnitude and critical drivers of water-quality impairment after wildfire. We analyzed chemistry of stream water, sediment, wildfire ash, soil, dust, and mine waste for metals and other parameters in order to evaluate the effects of legacy mining and wildfire on stream chemistry in the Colorado Front Range, USA. This data release includes data that were published earlier (McCleskey et al., 2012; Murphy et al., 2018).
Categories: Data;
Tags: Environmental Health,
Forestry,
Fourmile Creek, Boulder Colorado,
Hydrology,
Land Use Change, All tags...
Mineral Resources,
USGS Science Data Catalog (SDC),
Water Quality,
Water Resources,
Wildfire,
arsenic,
chemical contaminants,
disturbance,
mining,
water quality, Fewer tags
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Wildfire can impact soil-physical and soil-hydraulic properties, with major implications for hydrologic and ecologic response. The durations of these soil impacts are poorly characterized for some forested environments. This dataset sheds light on the first four years of recovery of soil-physical properties of bulk density, loss on ignition (measure of soil organic matter), ground cover, and soil particle size distribution and of soil-hydraulic properties of sorptivity and field-saturated hydraulic conductivity. The dataset also includes a simple infiltration model used to examine infiltration as the sites recover from fire.This is a revision of an existing USGS Data Release to add ground cover data and a model...
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