Category Archives: Scientific Article
Wildfire extent and severity influences the streamwater chemistry, sediment and temperature of individual basins during five years following Colorado’s Hayman Fire
ABSTRACT The 2002 Hayman Fire was the largest fire in recent Colorado history. The extent of high severity combustion and its location in watersheds that deliver drinking water to metropolitan Denver focused public attention on the effects of wildfire on … Continue reading
Abstract (Atmosphere) Data from the NOAA BAO (Boulder Atmospheric Observatory) tower and the PROFS (Program for Regional Observing and Forecasting Services) surface mesonetwork have been used to detect the meso- and microscale flow patterns associated with the passage of a … Continue reading
Abstract (Water Management, Conservation of Natural Resources) Water resource management requires knowledge of the natural variability in streamﬂow over multiple time scales. Reconstructions of streamﬂow derived from moisture-sensitive trees extend, in both time and magnitude, the variability provided by relatively … Continue reading
ABSTRACT (Water Management, Conservation of Natural Resources) Water resource planning is based primarily on 20th century instrumental records of climate and streamflow. These records are limited in length to approximately 100 years, in the best cases, and can reflect only … Continue reading
Economics of Widespread Manure Application to Irrigated Crops: Raw and Composted Feedlot Manure in Eastern Colorado.
Abstract (Economic Redevelopment, Pollution – Humans) We used linear programming to simulate adoption of manure disposal technologies in eastern Colorado. Manure, either raw or composted, is assumed to be applied to irrigated cropland within 20 miles of feedlots in five … Continue reading
Abstract (Geology) Sandstone dikes occur along the northeastern contact zone of the Pikes Peak batholith in the South Platte area, Colorado. The dikes range in width from a few inches to more than 10 feet and in length from a … Continue reading
Abstract (Water Management) A comprehensive reference system for the Earth’s river basins is proposed as a support to river basin management, global change research, and the pursuit of sustainable development. A natural system for delineation and codification of basins is … Continue reading
The Life Cycles of Classenia sabulosa and Herperoperla pacifica (Plecoptera: Perlidae) in Two Colorado Streams.
Abstract (Forest Ecology, Community Education) We compared the life cycles of Claassenia sabulosa (Banks 1900) and Hesperoperla pacifica(Banks 1900) (Plecoptera: Perlidae) in allopatry and sympatry by studying 4 populations in 3 streams of the South Platte River Watershed, Colorado. We estimated 2-year … Continue reading
Abstract (Conservation of Natural Resources, Valuable Resources, Community Education) The Greater Platte River Basins (GPRB), located in the heartland of the United States, provides a collaborative opportunity for the U.S. Geological Survey (USGS) and its partners to understand the … Continue reading
Organochlorine Compounds in Bed Sediment and Fish Tissues in the South Platte River Basin, USA, 1992-1993.
Abstract (Aquatic Life, Pollution – Humans) Bed-sediment and fish-tissue samples were collected in the South Platte River Basin to determine the occurrence and distribution of organochlorine compounds in the basin. During August–November 1992 and August 1993, bed sediment (23 sites) … Continue reading