Comparison of larval, age-0 juvenile and age-2 recruit abundance indices of walleye pollock,Theragra chalcogramma, in the western Gulf of Alaska     

Bailey  Kevin M.; Spring  Stella M. 《ICES Journal of Marine Science》1992,49(3):297-304

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Atmospheric forcing, larval drift, and recruitment of capelin (Mallotus villosus)     

Dalley  Edgar L.; Anderson  John T.; deYoung  Brad 《ICES Journal of Marine Science》2002,59(5):929-941

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The Hawaii-2 Observatory   总被引：2，自引：0，他引：2  

Petitt  R.A.  Jr. Harris  D.W. Wooding  B. Bailey  J. Jolly  J. Hobart  E. Chave  A.D. Duennebier  F. Butler  R. Bowen  A. Yoerger  D. 《Oceanic Engineering, IEEE Journal of》2002,27(2):245-253

A permanent deep ocean scientific research facility-the Hawaii-2 Observatory (H2O)-was installed on the retired HAW-2 commercial submarine telephone cable in September 1998. H2O consists of a seafloor submarine cable termination and junction box in 5000 m of water located halfway between Hawaii and California. The H2O infrastructure was installed from a large research vessel using the Jason ROV and standard over-the-side gear. The junction box provides two-way digital communication at variable data rates of up to 80 kbit/s using the RS-422 protocol and a total of 400 W of power for both junction box systems and user equipment. Instruments may be connected by an ROV to the junction box at 8 wet-mateable connectors. The H2O junction box is a "smart" design, which incorporates redundancy to protect against failure and allows full control of instrument functionality from shore. Initial instrumentation at the H2O site includes broad-band seismometer and hydrophone packages  相似文献   

Layers and gaps: the nature of the stratigraphical record          下载免费PDF全文

Robin Bailey 《Geology Today》2017,33(1):24-31

The fundamentals of stratigraphy have been well understood for more than three centuries and there is now a detailed stratigraphical record reaching back more than one billion years. But this sedimentary rock record is everywhere unpredictably incomplete and yet everywhere similar in its layered character. Computer analyses now reveal the fundamental nature of these two aspects of the record: gaps and layers are governed by simple, seemingly universal, laws that operate regardless of age and sediment type.  相似文献   

Lateral water flux in the unsaturated zone: A mechanism for the formation of spatial soil heterogeneity in a headwater catchment          下载免费PDF全文

John P. Gannon  Kevin J. McGuire  Scott W. Bailey  Rebecca R. Bourgault  Donald S. Ross 《水文研究》2017,31(20):3568-3579

Measurements of soil water potential and water table fluctuations suggest that morphologically distinct soils in a headwater catchment at the Hubbard Brook Experimental Forest in New Hampshire formed as a result of variations in saturated and unsaturated hydrologic fluxes in the mineral soil. Previous work showed that each group of these soils had distinct water table fluctuations in response to precipitation; however, observed variations in soil morphology also occurred above the maximum height of observed saturation. Variations in unsaturated fluxes have been hypothesized to explain differences in soil horizon thickness and presence/absence of specific horizons but have not been explicitly investigated. We examined tensiometer and shallow groundwater well records to identify differences in unsaturated water fluxes among podzols that show distinct morphological and chemical differences. The lack of vertical hydraulic gradients at the study sites suggests that lateral unsaturated flow occurs in several of the soil units. We propose that the variations in soil horizon thickness and presence/absence observed at the site are due in part to slope‐parallel water flux in the unsaturated portion of the solum. In addition, unsaturated flow may be involved in the translocation of spodic material that primes those areas to contribute water with distinct chemistry to the stream network and represents a potential source/sink of organometallic compounds in the landscape.  相似文献   

Geochemistry and origin of hornblende‐bearing xenoliths in the I‐type Petford Granite,North‐East Queensland     

J. C. Bailey 《Australian Journal of Earth Sciences》2013,60(1):7-23

Hornblende‐bearing xenoliths in the I‐type Petford Granite, north‐east Queensland, show an abundance pattern suggesting redistribution in a convecting magma system and were probably carried up with the host magma. The Petford Granite and xenoliths are chemically cognate, but quartz monzodiorite‐granodiorite bodies (a potential source for the xenoliths) in the adjacent country rocks belong to an independent magma suite. The xenoliths are chemically similar to andesite lavas and dykes 90 km to the NW. They represent fragments of the parental andesite (diorite) of a calcalkaline suite, which fractionated to yield the Petford Granite. They are not source rocks for the granite melt, melt residua, or early cumulates. The fractionated granite melt broke through the earlier envelope of diorite and rose into the upper crust, carrying dioritic fragments with it. Interaction between magma and xenoliths was generally minimal.  相似文献   

The Landsat Global Archive: a valuable global resource     

Kamlesh Lulla  M. Duane Nellis  Brad Rundquist 《国际地球制图》2013,28(4)

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China-Brazil Earth Resources Satellite Collaboration is a success     

Kamlesh Lulla  M. Duane Nellis  Brad Rundquist 《国际地球制图》2013,28(5)

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Celebrating fifty years of NASA and Earth observations from space. Part IV: Global water cycle and water resources research     

Kamlesh Lulla  M. Duane Nellis  Brad Rundquist 《国际地球制图》2013,28(4)

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Review: Stratigraphy, meta-stratigraphy and chaos     

R.J. Bailey 《地学学报》1998,10(4):222-230

An alternative approach to stratigraphic analysis is proposed. It takes as its starting point the simple general characteristics of the stratigraphic record and the complex, chaotic behaviours of the systems that combine to generate this record. In this context, Smith’s Stratigraphy Machine (SM) concept is developed. The SM is a chaotic global system, combining the operations of the atmosphere, hydrosphere, lithosphere and asthenosphere, which everywhere tends to self-organize towards a critical state in which continuous loading of the system with rock waste, over time, is balanced by the unloading that creates the record. The outputs of the SM are simple and nonscale dependent in character, with residence times in the record ranging from a second, or less, to 1 billion years. However, only those long-lived in the human time-frame are judged to be of stratigraphic significance; and the range of residence times entails that the stratigraphic record embraces a similar range of hiatuses, or gaps. The value of the SM, as developed here, is that it can be regarded as a meta-stratigraphic concept that transcends the usual frameworks of stratigraphic classification and interpretation and thus allows a reappraisal of significant features of the record such as its perceived cycles and sequences. There are three outcomes of this meta-stratigraphic analysis. First, the geometric units employed in sequence stratigraphy are components of a self-similar series of essentially lenticular bodies, with no fundamental characteristics to distinguish them from larger and smaller bodies in the generally self-similar series. Secondly, the interactions and feedbacks within the SM are so complex, and its outputs so repetitive in general character, that it is dangerous to assume that any perceived cyclicity provides an unambiguous chronicle of process cyclicity, whether eustatic, climatic or tectonic. The classic coarsening upward cyclicity of shallow marine facies can, for example, be viewed solely as the outcome of the lack of phasing between the chaotic behaviours tending to unload the SM and those creating accommodation space. Finally, the meta-stratigraphic approach reinforces the view that, in the absence of demonstrable stratal continuity, chronostratigraphic correlation must continue to rely on sample-based, mainly biostratigraphical, methods, rather than sequence stratigraphy.  相似文献