Results 21 to 30 of about 15,452 (136)

Geologic map of the New Braunfels, Texas, 30 x 60 minute quadrangle : geologic framework of an urban-growth corridor along the Edwards Aquifer, south-central Texas [PDF]

open access: yes, 2000
Process Steps: 1. Either: a) a Portable Document Format (PDF) version of the map provided the Bureau of Economic Geology, University of Texas at Austin was converted from pdf to Tagged Image File Format (TIFF) or b) a paper map was scanned and saved in ...
Collins, Edward W.
core   +1 more source

Radial Anisotropy in East Asia From Multimode Surface Wave Tomography

open access: yesJournal of Geophysical Research: Solid Earth, Volume 126, Issue 7, July 2021., 2021
Abstract We present a model of radial anisotropy in the crust and upper mantle of East Asia from a combination of new group velocity measurements and previously published surface wave dispersion data sets. Our combined data set ranges 5–375 s period and contains dispersion data up to the fifth overtone.
M. Witek   +4 more
wiley   +1 more source

Miscellaneous map no. 43 [PDF]

open access: yes, 2005
Process Steps: 1. Either: a) a Portable Document Format (PDF) version of the map provided the Bureau of Economic Geology, University of Texas at Austin was converted from pdf to Tagged Image File Format (TIFF) or b) a paper map was scanned and saved in ...
Collins, Edward W.
core   +1 more source

Ten Years of Experience in Converting Canadian Hydrographic Service Charts to a World-Based Geodetic Datum [PDF]

open access: yes, 2015
As long ago as 1975, North Americans realized that the North American Datum of 1927 (NAD 27) was becoming out-dated and that it would eventually have to be replaced by a geocentric datum.
Gray, David H.
core   +1 more source

Potential vectors of Leishmaniases in the Environmental Protection Area and Tinguá Federal Biological Reserve, Municipality of Nova Iguaçu, Rio de Janeiro, Brazil

open access: yesMedical and Veterinary Entomology, EarlyView.
This study was to describe the composition of sand fly fauna, detect potential vectors of Leishmania spp. in the Tinguá district, an ATL endemic, Rio de Janeiro, Brazil. Seven species of vectorial importance in the epidemiological cycle of leishmaniasis was observed: Nyssomyia intermedia, Migonemyia migonei, Pintomyia fischeri, Psychodopygus hirsutus ...
Antônio L. F. Santana   +9 more
wiley   +1 more source

Recovery of Daily Water Levels in the Sacramento‐San Joaquin Delta, 1915–2023

open access: yesGeoscience Data Journal, Volume 12, Issue 4, October 2025.
Newly digitized records of daily maximum and minimum water levels have been recovered from 25 distinct locations across the Sacramento/San Joaquin Delta region, extending the period of record by several decades. Analysing longer records will improve understanding of the processes influencing water levels in this dynamic region. ABSTRACT This manuscript
Serena B. Lee   +7 more
wiley   +1 more source

Relative sea‐level trends in southern Norway during the last millennium

open access: yesBoreas, Volume 54, Issue 3, Page 414-430, July 2025.
Relative sea level in southern Norway has been falling since c. 7000 cal. yr BP, but modern tide gauge data show rising relative sea level since at least 1960 CE. In this study, peat cores from a shallow coastal basin were analysed, using a multiproxy approach, to reconstruct relative sea level trends over the last millennium and to identify the onset ...
Max Holthuis   +10 more
wiley   +1 more source

Marcescence and prostrate growth in tree ferns are adaptations to cold tolerance

open access: yesEcography, Volume 2025, Issue 6, June 2025.
Cold tolerance strategies in plants vary from structural to biochemical permitting many plants to survive and grow on sites that experience freezing conditions intermittently. Although tree ferns occur predominantly across the tropics, they also occur in temperate zones and occasionally in areas that experience sub‐zero temperatures, and how these ...
James M. R. Brock   +2 more
wiley   +1 more source

Detection of Landslide‐Generated Tsunami by Shipborne GNSS Precise Point Positioning

open access: yesGeophysical Research Letters, Volume 52, Issue 8, 28 April 2025.
Abstract Precise point positioning (PPP) of ships using Global Navigation Satellite System (GNSS) data reveals the precise movements of marine vessels. This method may quantify anomalies in sea surface height with implications for oceanographic monitoring, exploration, and tsunami warning. The GNSS PPP data from the R/V Sikuliaq, a research ship of the
Adam E. Manaster   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy