Results 141 to 150 of about 82,682 (308)

Inventory of available data elements for the San Bernardino, California region [PDF]

open access: yes
Elements of data sets that are available to be integrated for the San Bernardino vertical data integration project are given. Each of the data sets has specified for it the ownership, validity, accuracy and technical requirements for ...
Christenson, J., Michel, R.
core   +1 more source

Thorncliffe Formation: A proglacial to subglacial lacustrine basin sequence, Greater Toronto Region, Canada

open access: yesBoreas, EarlyView.
Map of Lower sediment (LS) thickness is a surrogate for the distribution of Thorncliffe Formation (TF) and ~75% of TF thickness from the slope of Niagara Escarpment east to Brighton. Inset images show the LS sequence at the Don Valleys brickyards (DVBY) and undeformed TF sand and gravel (~15 m) below Newmarket Till (NT) at sites L and Co.
David R. Sharpe   +3 more
wiley   +1 more source

Assessment of ecosystem status in Mozambique and implications for environmental planning

open access: yesConservation Science and Practice, EarlyView.
We assess Mozambique's terrestrial ecosystems using the IUCN Red List of Ecosystems framework, showing that more than half of Mozambique's ecosystems are threatened, with impacts primarily concentrated in temperate subhumid grasslands and pyric tussock savannas.
Kendall R. Jones   +12 more
wiley   +1 more source

Symbolic landforms created by ancient earthworks near Lake Titicaca [PDF]

open access: yes, 2010
Interesting landforms created by an ancient network of earthworks are shown, using Google satellite imagery enhanced by an image processing. This network covers a large part of the land near the Titicaca Lake.
Sparavigna, Amelia Carolina
core   +1 more source

Integrating ecological feedbacks across scales and levels of organization

open access: yesEcography, EarlyView.
In ecosystems, species interact in various ways with other species, and with their local environment. In addition, ecosystems are coupled in space by diverse types of flows. From these links connecting different ecological entities can emerge circular pathways of indirect effects: feedback loops.
Benoît Pichon   +4 more
wiley   +1 more source

A new species of jewel‐babbler (Cinclosomatidae: Ptilorrhoa) from the Southern Fold Mountains of Papua New Guinea

open access: yesIbis, EarlyView.
Based on distinctive morphological and vocal characters we describe a new species of jewel‐babbler (genus Ptilorrhoa) from the forested karst of the Southern Fold Mountains in Papua New Guinea. The description is based on camera trap data and is presented in accordance with ICZN Declaration 45.
Iain A. Woxvold   +5 more
wiley   +1 more source

Geomorphic classification of Icelandic and Martian volcanoes: Limitations of comparative planetology research from LANDSAT and Viking orbiter images [PDF]

open access: yes
Some limitations in using orbital images of planetary surfaces for comparative landform analyses are discussed. The principal orbital images used were LANDSAT MSS images of Earth and nominal Viking Orbiter images of Mars.
Williams, R. S., Jr.
core   +1 more source

Practice Without Theory? The Wonder of Bethpage Black

open access: yesPublic Administration Review, EarlyView.
ABSTRACT Bethpage State Park's Black Course offers a rare historical case of administrative capacity emerging under conditions of uncertainty, fiscal constraint, and urgent public purpose during the Great Depression. Built with relief labor and without the benefit of fully developed public administration or budgeting doctrines, the project required ...
Odd J. Stalebrink
wiley   +1 more source

Use of ERTS-1 data to access and monitor change in the west side of the San Joaquin Valley and central coastal zone of California [PDF]

open access: yes
There are no author-identified significant results in this ...
Brunelle, D.   +9 more
core   +1 more source

The M. W. Burks Site (41WD52): A Late Caddo Hamlet in Wood County, Texas [PDF]

open access: yes, 2005
While attempting to locate and evaluate prehistoric Caddo archaeological sites in the Dry Creek watershed, Wood County, Texas, that had been originally recorded by A. T. Jackson and M. M. Reese in 1930, the M. W.
Perttula, Timothy K.   +2 more
core   +1 more source

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