Fiskeriundersøkelser ved Bjørnøya, Spitsbergen og i Barentshavet 1. - 27. juni 1971

Distribution and abundance of the commercial important species in the investigated area were observed. Special attention was paid to the prerecruits of cod, haddock and redfish. Polar cod and capelin were also studied. The acoustic instruments were continuously used. Trawling with bottom and pelagic trawls was carried out for fish sampling and identification of echo recordings. A low abundance of the 1970 year-class of cod was observed and the abundance was lower than that observed for the 1969 year-class. These findings disagree with observations made during the International 0-group fish surveys in August—September 1969 and 1970 and during a Norwegian survey in November 1970. Three factors are considered responsible for these unexpected observations. I: A part of the 1970 year-class might in June 1971 have been living together with capelin in the upper 100 to 150 m, and the abundance might therefore have been underestimated. 2: Some part of the year-class might during the autumn and early winter 1970 — 1971 have been transported outside the investigated area. 3: The abundance of the year-class might during the winter 1970—1971 have been reduced by an unusual high natural mortality. Prerecruits of cod and haddock and the youngest prerecruits of redfish were in June recorded both near the bottom and pelagic. It could not be classified if this distribution reflects a vertical diurnal migration, but this type of migrations is established during late autumn and late winter for prerecruits. June might therefore not be a very suitable time to observe the abundance of prerecruits

The NuMI Neutrino Beam and Potential for an Off-Axis Experiment

The Neutrinos at the Main Injector (NuMI) facility at Fermilab is under construction and due to begin operations in late 2004. NuMI will deliver an intense $\nu_{\mu}$ beam of variable energy 2-20 GeV directed into the Earth at 58 mrad. Several aspects of the design are reviewed, and potential limitations to the ultimate neutrino flux are described. In addition, potential measurements of neutrino mixing properties are described.Comment: talk given at NuFact '02, Imperial College London, proceedings to appear in J. Phys. G, revised to add a referenc

Acoustic abundance estimation of cod and haddock in the Barents Sea in February 1976

From l to 20 February observations of cod and haddock were carried out by R.V. "G.O. Sars" in the centra1 and eastern part of the Barents Sea. The survey was part of a program with the aim of estimating the abundance of young cod and haddock by an acoustic method. The results from the survey is presented in this report together with a brief description of the method used to establish abundance estimates of young cod and haddock

Fisheries investigations in the waters off Bear Island, Spitsbergen and in the Barents Sea 1 - 27 June 1971

Distribution and abundance of the commercial important species in the investigated area were observed. Special attention was paid to the prerecruits of cod, haddock and redfish. Polar cod and capelin were also studied. The acoustic instruments were continuously used. Trawling with bottom and pelagic trawls was carried out for fish sampling and identification of echo recordings. A low abundance of the 1970 year-class of cod was observed and the abundance was lower than that observed for the 1969 year-class. These findings disagree with observations made during the International 0-group fish surveys in August—September 1969 and 1970 and during a Norwegian survey in November 1970. Three factors are considered responsible for these unexpected observations. I: A part of the 1970 year-class might in June 1971 have been living together with capelin in the upper 100 to 150 m, and the abundance might therefore have been underestimated. 2: Some part of the year-class might during the autumn and early winter 1970 — 1971 have been transported outside the investigated area. 3: The abundance of the year-class might during the winter 1970—1971 have been reduced by an unusual high natural mortality. Prerecruits of cod and haddock and the youngest prerecruits of redfish were in June recorded both near the bottom and pelagic. It could not be classified if this distribution reflects a vertical diurnal migration, but this type of migrations is established during late autumn and late winter for prerecruits. June might therefore not be a very suitable time to observe the abundance of prerecruits

Beam-Based Alignment of the NuMI Target Station Components at FNAL

The Neutrinos at the Main Injector (NuMI) facility is a conventional horn-focused neutrino beam which produces muon neutrinos from a beam of mesons directed into a long evacuated decay volume. The relative alignment of the primary proton beam, target, and focusing horns affects the neutrino energy spectrum delivered to experiments. This paper describes a check of the alignment of these components using the proton beam.Comment: higher resolution figures available on Fermilab Preprint Server (see SPIRES entry), accepted for publication in Nucl. Instr. and Meth.

Experiment Simulation Configurations Used in DUNE CDR

The LBNF/DUNE CDR describes the proposed physics program and experimental design at the conceptual design phase. Volume 2, entitled The Physics Program for DUNE at LBNF, outlines the scientific objectives and describes the physics studies that the DUNE collaboration will perform to address these objectives. The long-baseline physics sensitivity calculations presented in the DUNE CDR rely upon simulation of the neutrino beam line, simulation of neutrino interactions in the far detector, and a parameterized analysis of detector performance and systematic uncertainty. The purpose of this posting is to provide the results of these simulations to the community to facilitate phenomenological studies of long-baseline oscillation at LBNF/DUNE. Additionally, this posting includes GDML of the DUNE single-phase far detector for use in simulations. DUNE welcomes those interested in performing this work as members of the collaboration, but also recognizes the benefit of making these configurations readily available to the wider community.Comment: 9 pages, 4 figures, configurations in ancillary file