Mars reconnaissance orbiter's high resolution imaging science experiment (HiRISE)
Alfred S. McEwen, Eric M. Eliason, James W. Bergstrom, Nathan T. Bridges, Candice J. Hansen, W. Alan Delamere, John A. Grant, Virginia C. Gulick, Kenneth E. Herkenhoff, Laszlo P. Keszthelyi, Randolph L. Kirk, Michael T. Mellon, Steven W. Squyres, Nicolas Thomas, Catherine M. Weitz
2007, Journal of Geophysical Research E: Planets (112)
The HiRISE camera features a 0.5 m diameter primary mirror, 12 m effective focal length, and a focal plane system that can acquire images containing up to 28 Gb (gigabits) of data in as little as 6 seconds. HiRISE will provide detailed images (0.25 to 1.3 m/pixel) covering ∼1% of...
Striving for collaborative science and communication through the Consortium for Research and Education on Emerging Contaminants (CREEC)
Juliane B. Brown, William A. Battaglin
2007, Water Resources Impact (May 2007) 22-24
Current analytical capabilities are allowing scientists to identify possible contaminants in the environment that were previously unmonitored or were present at concentrations too low for detection. New scientific evidence about the exposure pathways and potential impacts of some of these compounds on human or environmental health is regularly being published...
The oxygen-18 isotope approach for measuring aquatic metabolism in high-productivity waters
Craig R. Tobias, John Karl Bohlke, Judson W. Harvey
2007, Limnology and Oceanography (52) 1439-1453
We examined the utility of δ18O2 measurements in estimating gross primary production (P), community respiration (R), and net metabolism (P : R) through diel cycles in a productive agricultural stream located in the midwestern U.S.A. Large diel swings in O2(±200 µmol L−1) were accompanied by large diel variation in δ18O2 (±10‰). Simultaneous...
Characterization of post-fire surface cover, soils, and burn severity at the Cerro Grande Fire, New Mexico, using hyperspectral and multispectral remote sensing
R.F. Kokaly, B.W. Rockwell, S.L. Haire, T. V. V. King
2007, Remote Sensing of Environment (106) 305-325
Forest fires leave behind a changed ecosystem with a patchwork of surface cover that includes ash, charred organic matter, soils and soil minerals, and dead, damaged, and living vegetation. The distributions of these materials affect post-fire processes of erosion, nutrient cycling, and vegetation regrowth. We analyzed high spatial resolution (2.4??m...
Aquifer-scale controls on the distribution of nitrate and ammonium in ground water near La Pine, Oregon, USA
Stephen R. Hinkle, John Karl Bohlke, John H. Duff, David S. Morgan, Rodney J. Weick
2007, Journal of Hydrology (333) 486-503
Geochemical and isotopic tools were applied at aquifer, transect, and subtransect scales to provide a framework for understanding sources, transport, and fate of dissolved inorganic N in a sandy aquifer near La Pine, Oregon. NO3 is a common contaminant in shallow ground water in this area, whereas high concentrations of...
Grids of Agricultural Pesticide Use in the Conterminous United States, 1992
Naomi Nakagaki
2007, Report
This spatial dataset consists of 199 1-kilometer (km) resolution grids depicting estimated agricultural use of 199 pesticides in 1992 for the conterminous United States. Each grid cell value in the national grids of this dataset is the estimated total kilograms (kg) of a pesticide applied to row crops, small grain...
Anza-Terwilliger study wells in Riverside County, California
Andrew Morita, Dennis A. Clark, Peter Martin
2007, Report
This digital data set contains the locations, water-level altitude, and water-level differences of 70 wells selected to document water-level changes between fall 2004 and spring 2005 in the Anza-Terwilliger area of Riverside County, California. The winter of 2005 was one of the wettest periods on record. Links to...
Grids of agricultural pesticide use in the conterminous United States, 1997
Naomi Nakagaki
2007, Report
This spatial dataset consists of 219 1-kilometer (km) resolution grids depicting estimated agricultural use of 219 pesticides in 1997 for the conterminous United States. Each grid cell value in the national grids of this dataset is the estimated total kilograms (kg) of a pesticide applied to row crops, small grain...
Oxygen and chlorine isotopic fractionation during perchlorate biodegradation: Laboratory results and implications for forensics and natural attenuation studies
Neil C. Sturchio, John Karl Bohlke, Abelardo D. Beloso Jr., S.H. Streger, Linnea J. Heraty, Paul B. Hatzinger
2007, Environmental Science & Technology (41) 2796-2802
Perchlorate is a widespread environmental contaminant having both anthropogenic and natural sources. Stable isotope ratios of O and Cl in a given sample of perchlorate may be used to distinguish its source(s). Isotopic ratios may also be useful for identifying the extent of biodegradation of perchlorate, which is critical for...
GIS for the Gulf: A reference database for hurricane-affected areas
Dave Greenlee
2007, Circular 1306-4C
A week after Hurricane Katrina made landfall in Louisiana, a collaboration among multiple organizations began building a database called the Geographic Information System for the Gulf, shortened to "GIS for the Gulf," to support the geospatial data needs of people in the hurricane-affected area. Data were gathered from diverse sources...
Local search for optimal global map generation using mid-decadal landsat images
L. Khatib, J. Gasch, Robert Morris, S. Covington
2007, Conference Paper, AAAI Workshop - Technical Report
NASA and the US Geological Survey (USGS) are seeking to generate a map of the entire globe using Landsat 5 Thematic Mapper (TM) and Landsat 7 Enhanced Thematic Mapper Plus (ETM+) sensor data from the "mid-decadal" period of 2004 through 2006. The global map is comprised of thousands of scene...
Human influence on California fire regimes
A.D. Syphard, V. C. Radeloff, Jon E. Keeley, T. J. Hawbaker, M.K. Clayton, S. I. Stewart, R. B. Hammer
2007, Ecological Applications (17) 1388-1402
Periodic wildfire maintains the integrity and species composition of many ecosystems, including the mediterranean-climate shrublands of California. However, human activities alter natural fire regimes, which can lead to cascading ecological effects. Increased human ignitions at the wildland-urban interface (WUI) have recently gained attention, but fire activity and risk are typically...
CO2 storage capacity estimation: Issues and development of standards
J. Bradshaw, S. Bachu, D. Bonijoly, R. Burruss, S. Holloway, N.P. Christensen, O.M. Mathiassen
2007, International Journal of Greenhouse Gas Control (1) 62-68
Associated with the endeavours of geoscientists to pursue the promise that geological storage of CO2 has of potentially making deep cuts into greenhouse gas emissions, Governments around the world are dependent on reliable estimates of CO2 storage capacity and insightful indications of the viability of geological storage in their respective...
A rapid method to characterize seabed habitats and associated macro-organisms
T.J. Anderson, G.R. Cochrane, D.A. Roberts, H. Chezar, G. Hatcher
Todd B.J.Greene H.G., editor(s)
2007, Special Paper - Geological Association of Canada 71-79
This study presents a method for rapidly collecting, processing, and interrogating real-time abiotic and biotic seabed data to determine seabed habitat classifications. This is done from data collected over a large area of an acoustically derived seabed map, along multidirectional transects, using a towed small camera-sled. The seabed, within the...
Long-term limnological research and monitoring at Crater Lake, Oregon
G.L. Larson, R. Collier, M. Buktenica
2007, Hydrobiologia (574) 1-11
Crater Lake is located in the caldera of Mount Mazama in Crater Lake National Park, Oregon. The lake has a surface area of about 53 km2at an elevation of 1882 m and a maximum depth of 594 m. Limited studies of this ultraoligotrophic lake conducted between 1896 and 1981, lead...
Postfire soil burn severity mapping with hyperspectral image unmixing
P.R. Robichaud, S.A. Lewis, D.Y.M. Laes, A.T. Hudak, R.F. Kokaly, J.A. Zamudio
2007, Remote Sensing of Environment (108) 467-480
Burn severity is mapped after wildfires to evaluate immediate and long-term fire effects on the landscape. Remotely sensed hyperspectral imagery has the potential to provide important information about fine-scale ground cover components that are indicative of burn severity after large wildland fires. Airborne hyperspectral imagery and ground data were collected...
Attenuation of ground-motion spectral amplitudes in southeastern Australia
T.I. Allen, P.R. Cummins, T. Dhu, J.F. Schneider
2007, Bulletin of the Seismological Society of America (97) 1279-1292
A dataset comprising some 1200 weak- and strong-motion records from 84 earthquakes is compiled to develop a regional ground-motion model for southeastern Australia (SEA). Events were recorded from 1993 to 2004 and range in size from moment magnitude 2.0 ??? M ??? 4.7. The decay of vertical-component Fourier spectral amplitudes...
Total petroleum system assessment of undiscovered resources in the giant Barnett Shale continuous (unconventional) gas accumulation, Fort Worth Basin, Texas
R. M. Pollastro
2007, American Association of Petroleum Geologists Bulletin (91) 551-578
Undiscovered natural gas having potential for additions to reserves in the Mississippian Barnett Shale of the Fort Worth Basin, north-central Texas, was assessed using the total petroleum system assessment unit concept and a cell-based methodology for continuous-type (Unconventional) resources. The Barnett-Paleozoic total petroleum system is defined in the Bend arch-Fort...
A project for monitoring trends in burn severity
Jeffery C. Eidenshink, Brian Schwind, Ken Brewer, Zhu-Liang Zhu, Brad Quayle, Stephen M. Howard
2007, Fire Ecology (3) 3-21
Jeff Eidenshink, Brian Schwind, Ken Brewer, Zhi-Liang Zhu, Brad Quayle, and Elected officials and leaders of environmental agencies need information about the effects of large wildfires in order to set policy and make management decisions. Recently, the Wildland Fire Leadership Council (WFLC), which implements and coordinates the National Fire Plan...
U/Th series radionuclides as coastal groundwater tracers
P.W. Swarzenski
2007, Chemical Reviews (107) 663-674
The study of coastal groundwater has recently surfaced as an active interdisciplinary area of research, driven foremost by its importance as a poorly quantified pathway for subsurface material transport into coastal ecosystems. Key issue in coastal groundwater research include a complete geochemical characterization of the groundwater(s); quantification of the kinetics...
A land-cover map for South and Southeast Asia derived from SPOT-VEGETATION data
H.-J. Stibig, A.S. Belward, P.S. Roy, U. Rosalina-Wasrin, S. Agrawal, P.K. Joshi, Hildanus, R. Beuchle, S. Fritz, S. Mubareka, S. Giri
2007, Journal of Biogeography (34) 625-637
Aim Our aim was to produce a uniform ‘regional’ land-cover map of South and Southeast Asia based on ‘sub-regional’ mapping results generated in the context of the Global Land Cover 2000 project.Location The ‘region’ of tropical and sub-tropical South and Southeast Asia stretches from the Himalayas and the southern border...
Canadian and U.S. Cooperation for the development of standards and specifications for emerging mapping technologies
A. Habib, A. Jarvis, M. M. Al-Durgham, J. Lay, P. Quackenbush, G. Stensaas, D. Moe
2007, Conference Paper, 28th Canadian Symposium on Remote Sensing and ASPRS Fall Specialty Conference 2007
The mapping community is witnessing significant advances in available sensors, such as medium format digital cameras (MFDC) and Light Detection and Ranging (LiDAR) systems. In this regard, the Digital Photogrammetry Research Group (DPRG) of the Department of Geomatics Engineering at the University of Calgary has been actively involved in the...
Mapping an invasive plant, Phragmites australis, in coastal wetlands using the EO-1 Hyperion hyperspectral sensor
Bruce Pengra, C.A. Johnston, Thomas R. Loveland
2007, Remote Sensing of Environment (108) 74-81
Mapping tools are needed to document the location and extent of Phragmites australis, a tall grass that invades coastal marshes throughout North America, displacing native plant species and degrading wetland habitat. Mapping Phragmites is particularly challenging in the freshwater Great Lakes coastal wetlands due to dynamic lake levels and vegetation...
Peptidomic analysis of skin secretions supports separate species status for the tailed frogs, Ascaphus truei and Ascaphus montanus
J.M. Conlon, C.R. Bevier, L. Coquet, J. Leprince, T. Jouenne, H. Vaudry, B. R. Hossack
2007, Comparative Biochemistry and Physiology, Part D: Genomics and Proteomics (2) 121-125
The tailed frog Ascaphus truei Stejneger, 1899 is the most primitive extant anuran and the sister taxon to the clade of all other living frogs. The species occupies two disjunct ranges in the Northwest region of North America: the Cascade Mountains and coastal area from British Columbia to Northern California,...
Migration behavior and dispersal of adult spring Chinook salmon released into Lake Scanewa on the upper Cowlitz River during 2005
R.W. Perry, Tobias J. Kock, M.A Kritter, Dennis W. Rondorf
2007, Report
During 2005, we conducted a radio-telemetry study to answer a number of basic questions about the migration behavior of adult Spring Chinook salmon (Oncorhynchus tshawytscha) released into the upper Cowlitz River watershed. We also conducted a pilot study of adult Coho salmon (Oncorhynchus kisutch) using radio-tags recovered from adult spring...
