Results 121 to 130 of about 35,939 (297)

Report of the panel on international programs [PDF]

The panel recommends that NASA participate and take an active role in the continuous monitoring of existing regional networks, the realization of high resolution geopotential and topographic missions, the establishment of interconnection of the reference
Anderson, Allen Joel, Fuchs, Karl W., Ganeka, Yasuhiro, Gaur, Vinod, Green, Andrew A., Lambert, Anthony, Rais, Jacub, Reighber, Christopher, Seeger, Herman, Siegfried, W.   +9 more
core   +1 more source

Crime Prevention Through Private Actors: Evidence From a Policy Change at a Large UK Supermarket Chain

Oxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT This paper investigates the effectiveness of private actors in contributing to crime prevention. We leverage well‐publicised increases in security measures, including additional security guards and tagging of goods, by Tesco, a large UK supermarket chain.
Nils Braakmann, Wednesday Croft
wiley   +1 more source

Virocell Necromass Provides Limited Plant Nitrogen and Elicits Rhizosphere Metabolites That Affect Phage Dynamics

Plant, Cell &Environment, EarlyView.
ABSTRACT Bacteriophages impact soil bacteria through lysis, altering the availability of organic carbon and plant nutrients. However, the magnitude of nutrient uptake by plants from lysed bacteria remains unknown, partly because this process is challenging to investigate in the field.
Vlastimil Novak, Michelle C. M. van Winden, Thomas V. Harwood, Rachel Neurath, Suzanne M. Kosina, Katherine B. Louie, Matthew B. Sullivan, Simon Roux, Karsten Zengler, Vivek K. Mutalik, Trent R. Northen   +10 more
wiley   +1 more source

A likely role for stratification in long-term changes of the global ocean tides

Communications Earth & Environment
Stratification—that is, the vertical change in seawater density—exerts a subtle control on the energetics and thus the surface elevation of barotropic (depth independent) flows in the ocean. Changes in stratification therefore provide a plausible pathway
Lana Opel, Michael Schindelegger, Richard D. Ray   +2 more
doaj   +1 more source

Modernizing and Expanding the NASA Space Geodesy Network to Meet Future Geodetic Requirements. [PDF]

J Geod, 2019
Merkowitz SM, Bolotin S, Elosegui P, Esper J, Gipson J, Hilliard L, Himwich E, Hoffman ED, Lakins DD, Lamb RC, Lemoine FG, Long JL, McGarry JF, MacMillan DS, Michael BP, Noll C, Pavlis EC, Pearlman MR, Ruszczyk C, Shappirio MD, Stowers DA.   +20 more
europepmc   +1 more source

Consideration of permanent tidal deformation in the orbit determination and data analysis for the Topex/Poseidon mission [PDF]

The effects of the permanent tidal effects of the Sun and Moon with specific applications to satellite altimeter data reduction are reviewed in the context of a consistent definition of geoid undulations.
Klosko, Steven M., Nerem, R. Steven, Rapp, Richard H., Shum, C. K., Williamson, Ronald G.   +4 more
core   +1 more source

A matter of timing: sagebrush steppe restoration seeding outcomes altered by species responses to warmer spring temperatures and interannual weather variation

Restoration Ecology, EarlyView.
Abstract Introduction Restoration outcomes in cold desert ecosystems like sagebrush steppe are affected by weather variability, particularly during the spring, a critical time period for seedling establishment. Seedling emergence phenology is also highly variable among species in these ecosystems.
Stella M. Copeland, Jonathan D. Bates, Kirk W. Davies, Matthew J. Germino   +3 more
wiley   +1 more source

Research program of the Geodynamics Branch [PDF]

This report is the Fourth Annual Summary of the Research Program of the Geodynamics Branch. The branch is located within the Laboratory for Terrestrial Physics of the Space and Earth Sciences Directorate of the Goddard Space Flight Center.
Boccucci, B. S., Cohen, S. C., Kahn, W. D.   +2 more
core   +1 more source

Formation process of the gravel‐dominated deposit from the 2011 Tohoku‐oki tsunami in Ofunato, northeastern Japan, inferred by integrating sedimentology and tsunami modelling

Sedimentology, EarlyView.
ABSTRACT Tsunami deposits serve as geological records of past events and are essential for understanding the occurrence and dynamics of tsunamis. However, conventional research has largely focused on sandy and boulder deposits, leaving gravel‐dominated tsunami deposits comparatively underexplored; furthermore, their characteristics and formation ...
Hidetoshi Masuda, Haruki Imura, Koki Nakata, Takashi Ishizawa, Daisuke Sugawara, Kazuhisa Goto   +5 more
wiley   +1 more source

Long‐Term Variability of Mars' Exosphere Density Based on Precise Orbital Analysis of Mars Reconnaissance Orbiter and Mars Odyssey

Geophysical Research Letters
The variability of Mars exosphere over monthly to solar‐cycle scales at 251 and 412 km altitude is quantified by analysis of 41‐Ls mean densities derived from precise orbit determination of the Mars Reconnaissance Orbiter (MRO) and Mars Odyssey (MO ...
J. M. Forbes, S. L. Bruinsma, X. Zhang, J.‐C. Marty, S. Laurens   +4 more
doaj   +1 more source