Ensemble habitat mapping of invasive plant species
T.J. Stohlgren, P. Ma, S. Kumar, M. Rocca, J.T. Morisette, C. S. Jarnevich, N. Benson
2010, Risk Analysis (30) 224-235
Ensemble species distribution models combine the strengths of several species environmental matching models, while minimizing the weakness of any one model. Ensemble models may be particularly useful in risk analysis of recently arrived, harmful invasive species because species may not yet have spread to all suitable habitats, leaving species-environment relationships...
Identifying regions of strong scattering at the core-mantle boundary from analysis of PKKP precursor energy
S. Rost, P.S. Earle
2010, Earth and Planetary Science Letters (297) 616-626
We detect seismic scattering from the core-mantle boundary related to the phase PKKP (PK. KP) in data from small aperture seismic arrays in India and Canada. The detection of these scattered waves in data from small aperture arrays is new and allows a better characterization of the fine-scale structure of...
Land-use pressure and a transition to forest-cover loss in the Eastern United States
Mark A. Drummond, Thomas R. Loveland
2010, BioScience (60) 286-298
Contemporary land-use pressures have a significant impact on the extent and condition of forests in the eastern United States, causing a regional-scale decline in forest cover. Earlier in the 20th century, land cover was on a trajectory of forest expansion that followed agricultural abandonment. However, the potential for forest regeneration...
Teaching citizen science skills online: Implications for invasive species training programs
G. Newman, A. Crall, M. Laituri, J. Graham, T. Stohlgren, J.C. Moore, K. Kodrich, K.A. Holfelder
2010, Applied Environmental Education and Communication (9) 276-286
Citizen science programs are emerging as an efficient way to increase data collection and help monitor invasive species. Effective invasive species monitoring requires rigid data quality assurances if expensive control efforts are to be guided by volunteer data. To achieve data quality, effective online training is needed to improve field...
Emplacement of the youngest flood lava on Mars: A short, turbulent story
Windy L. Jaeger, Laszlo P. Keszthelyi, James A. Skinner, Moses P. Milazzo, Alfred S. McEwen, Timothy N. Titus, Mark R. Rosiek, Donna M. Galuszka, Elpitha Howington-Kraus, Randolph L. Kirk, the HiRISE TEam
2010, Icarus (205) 230-243
Recently acquired data from the High Resolution Imaging Science Experiment (HiRISE), Context (CTX) imager, and Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) onboard the Mars Reconnaissance Orbiter (MRO) spacecraft were used to investigate the emplacement of the youngest flood-lava flow on Mars. Careful mapping finds that...
Evolution of a natural debris flow: In situ measurements of flow dynamics, video imagery, and terrestrial laser scanning
S.W. McCoy, J. W. Kean, J. A. Coe, D.M. Staley, T.A. Wasklewicz, G.E. Tucker
2010, Geology (38) 735-738
Many theoretical and laboratory studies have been undertaken to understand debris-flow processes and their associated hazards. However, complete and quantitative data sets from natural debris flows needed for confirmation of these results are limited. We used a novel combination of in situ measurements of debris-flow dynamics, video imagery, and pre-...
Time-dependent seismic tomography
B.R. Julian, G.R. Foulger
2010, Geophysical Journal International (182) 1327-1338
Of methods for measuring temporal changes in seismic-wave speeds in the Earth, seismic tomography is among those that offer the highest spatial resolution. 3-D tomographic methods are commonly applied in this context by inverting seismic wave arrival time data sets from different epochs independently and assuming that differences in the...
Monitoring on-orbit calibration stability of the Terra MODIS and Landsat 7 ETM+ sensors using pseudo-invariant test sites
G. Chander, X. Xiong, T. Choi, A. Angal
2010, Remote Sensing of Environment (114) 925-939
The ability to detect and quantify changes in the Earth's environment depends on sensors that can provide calibrated, consistent measurements of the Earth's surface features through time. A critical step in this process is to put image data from different sensors onto a common radiometric scale. This work focuses on...
Physical Habitat Characteristics on the North and South Forks of the Shenandoah River, VA in 2002-2007
Jennifer L. Krstolic, Donald C. Hayes
2010, Report
Data collected with the GeoXT Trimble GPS unit using ArcPad 6.1. (summer 2006-2007). Files were created within a geodatabase to create a data dictionary for use in ArcPad during data collection. Drop down lists for habitat type, substrate, depth, width, length, and descriptions were included. Data files...
Analysis of elevation changes detected from multi-temporal LiDAR surveys in forested landslide terrain in western Oregon
W.J. Burns, J. A. Coe, B.S. Kaya, Liwang Ma
2010, Environmental & Engineering Geoscience (16) 315-341
We examined elevation changes detected from two successive sets of Light Detection and Ranging (LiDAR) data in the northern Coast Range of Oregon. The first set of LiDAR data was acquired during leafon conditions and the second set during leaf-off conditions. We were able to successfully identify and map active...
National Land Cover Database 2001 (NLCD01) Imperviousness Layer Tile 4, Southeast United States: IMPV01_4
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 587-D
This 30-meter resolution data set represents the imperviousness layer for the conterminous United States for the 2001 time period. The data have been arranged into four tiles to facilitate timely display and manipulation within a Geographic Information System, browse graphic: nlcd01-partition. The National Land Cover Data Set for 2001 was...
National Land Cover Database 2001 (NLCD01) Tree Canopy Layer Tile 4, Southeast United States: CNPY01_4
Andrew E. LaMotte, Michael Wieczorek
2010, Report
This 30-meter resolution data set represents the tree canopy layer for the conterminous United States for the 2001 time period. The data have been arranged into four tiles to facilitate timely display and manipulation within a Geographic Information System, browse graphic: nlcd01-partition.jpg The National Land Cover Data Set for 2001...
Groundwater site identification indexes for Washington, D.C., Baltimore City, and the counties of Maryland
Andrew E. LaMotte
2010, Data Series 576
These datasets represent 23 geographic 5-minute indexes for the counties of Maryland, one 2 1/2-minute index for Washington D.C., and 1-mile square index for Baltimore City. There are 25 vector polygon datasets covered by this metadata report....
Chemical and nanometer-scale structure of kerogen and its change during thermal maturation investigated by advanced solid-state 13C NMR spectroscopy
J. Mao, X. Fang, Y. Lan, A. Schimmelmann, Maria Mastalerz, L. Xu, K. Schmidt-Rohr
2010, Geochimica et Cosmochimica Acta (74) 2110-2127
We have used advanced and quantitative solid-state nuclear magnetic resonance (NMR) techniques to investigate structural changes in a series of type II kerogen samples from the New Albany Shale across a range of maturity (vitrinite reflectance R0 from 0.29% to 1.27%). Specific functional groups such as CH3, CH2, alkyl CH,...
Integrated use of surface geophysical methods for site characterization — A case study in North Kingstown, Rhode Island
Carole D. Johnson, John W. Lane Jr., William C. Brandon, Christine A.P. Williams, Eric A. White
2010, Conference Paper, Symposium on the Application of Geophysics to Engineering and Environmental Problems 2010
A suite of complementary, non‐invasive surface geophysical methods was used to assess their utility for site characterization in a pilot investigation at a former defense site in North Kingstown, Rhode Island. The methods included frequency‐domain electromagnetics (FDEM), ground‐penetrating radar (GPR), electrical resistivity tomography (ERT), and multi‐channel analysis of surface‐wave (MASW)...
National Land Cover Database 2001 (NLCD01) Imperviousness Layer Tile 2, Northeast United States: IMPV01_2
Andrew E. LaMotte, Michael Wieczorek
2010, Data Series 587-B
This 30-meter resolution data set represents the imperviousness layer for the conterminous United States for the 2001 time period. The data have been arranged into four tiles to facilitate timely display and manipulation within a Geographic Information System, browse graphic: nlcd01-partition. The National Land Cover Data Set for 2001 was...
National Land Cover Database 2001 (NLCD01) Imperviousness Layer Tile 3, Southwest United States: IMPV01_3
Andrew E. LaMotte, Michael Wieczorek
2010, Data Series 587-C
This 30-meter resolution data set represents the imperviousness layer for the conterminous United States for the 2001 time period. The data have been arranged into four tiles to facilitate timely display and manipulation within a Geographic Information System, browse graphic: nlcd01-partition. The National Land Cover Data Set for 2001 was...
Landslide inventory for the Little North Santiam River Basin, Oregon
Steven Sobieszczyk
2010, Report
This geodatabase is an inventory of existing landslides in the Little North Santiam River Basin, Oregon (2009). Each landslide feature shown has been classified according to a number of specific characteristics identified at the time recorded in the GIS database. The classification scheme was developed by the Oregon Department of...
Landslide deposit boundaries for the Little North Santiam River Basin, Oregon
Steven Sobieszczyk
2010, Report
This layer is an inventory of existing landslides deposits in the Little North Santiam River Basin, Oregon (2009). Each landslide deposit shown on this map has been classified according to a number of specific characteristics identified at the time recorded in the GIS database. The classification scheme was developed by...
Location of photographs showing landslide features in the Little North Santiam River Basin, Oregon
Steven Sobieszczyk
2010, Report
Data points represent locations of photographs taken of landslides in the Little North Santiam River Basin, Oregon. Photos were taken in spring of 2010 during field verification of landslide locations (deposits previously mapped using LiDAR-derived imagery). The photographs depict various landslide features, such as scarps, pistol-butt trees, or colluvium deposits....
Top of head scarp and internal scarps for landslide deposits in the Little North Santiam River Basin, Oregon
Steven Sobieszczyk
2010, Report
Data points represent head scarps, flank scarps, and minor internal scarps (linear) associated with landslide deposits in the Little North Santiam River Basin, Oregon. This work was completed as part of the Master's thesis "Turbidity Monitoring and LiDAR Imagery Indicate Landslides are Primary Source of Suspended-Sediment Load in the Little...
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Average Atmospheric (Wet) Deposition of Inorganic Nitrogen, 2002
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 491-02
This tabular data set represents the average atmospheric (wet) deposition, in kilograms per square kilometer, of inorganic nitrogen for the year 2002 compiled for every catchment for MRB_E2RF1 of Major River Basins (MRBs, Crawford and others, 2006). The source data set for wet deposition was from the USGS's raster data...
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Basin Characteristics, 2002 Geospatial_Data_Presentation_Form: tabular digital data
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 491-03
This tabular data set represents basin characteristics for the year 2002 compiled for every MRB_E2RF1 catchment of selected Major River Basins (MRBs, Crawford and others, 2006). These characteristics are reach catchment shape index, stream density, sinuosity, mean elevation, mean slope and number of road-stream crossings. The source data...
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Bedrock Geology
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 491-05
This tabular data set represents the area of bedrock geology types in square meters compiled for every catchment of MRB_E2RF1 catchments for Major River Basins (MRBs, Crawford and others, 2006). The source data set is the "Geology of the Conterminous United States at 1:2,500,000 Scale--A Digital Representation of the...
Attributes for MRB_E2RF1 Catchments in Selected Major River Basins of the Conterminous United States: Contact Time, 2002
Michael Wieczorek, Andrew E. LaMotte
2010, Data Series 491-07
This tabular data set represents the average contact time, in units of days, compiled for every MRB_E2RF1 catchment of Major River Basins (MRBs, Crawford and others, 2006). Contact time, as described in Vitvar and others (2002), is defined as the baseflow residence time in the subsurface. The source data set...
