Now showing items 1398-1417 of 2043

    • Parameterization of vertical chlorophyll a in the Arctic Ocean: impact of the subsurface chlorophyll maximum on regional, seasonal, and annual primary production estimates. 

      Ardyna, M.; Babin, M.; Gosselin, M.; Devred, E.; Belanger, S.; Matsuoka, A.; Tremblay, J. E. (2013)
      Predicting water-column phytoplankton biomass from near-surface measurements is a common approach in biological oceanography, particularly since the advent of satellite remote sensing of ocean color (OC). In the Arctic ...
    • Parametrization of Eddy Mass Transport in the Arctic Seas Based on the Sensitivity Analysis of Large-Scale Flows. 

      Platov, Gennady; Iakshina, Dina; Golubeva, Elena (2023)
      The characteristics of eddy mass transport are estimated depending on the values of the parameters of a large-scale flow that forms under the conditions of the shelf seas in the Arctic. For this, the results of numerical ...
    • Particle motion: the missing link in underwater acoustic ecology. 

      Nedelec, Sophie L.; Campbell, James; Radford, Andrew N.; Simpson, Stephen D.; Merchant, Nathan D. (2016)
      1. Sound waves in water have both a pressure and a particle-motion component, yet few studies of underwater acoustic ecology have measured the particle-motion component of sound. While mammal hearing is based on detection ...
    • Partition of the Ocean into Ecological Provinces: Role of Ocean-Colour Radiometry. 

      Dowell, Mark; Platt, Trevor; IOCCG (International Ocean Colour Coordinating Group (IOCCG), Dartmouth, NS, Canada, 2009)
      Ocean colour remote sensing can be used to the partition the ocean ecosystem into biogeochemical provinces to reveal its underlying functional structure. This report outlines the state of the art in ocean classification ...
    • Passive Acoustic Monitoring from Fixed Platform Observatories. Deliverable 12.6, FixO3. 

      Van der Schaar, Mike; Andre, Michel; Delory. Eric; Gillespie, Doug; Rolin, Jean-Francoise (IFREMER for FIXO3, Brest, France, 2017)
      The development of fixed platform observatories provides an excellent opportunity to measure ocean noise and to acoustically monitor for marine mammals. The addition of passive acoustic monitoring equipment to such a ...
    • Passive acoustic monitoring in ecology and conservation. 

      Browning, Ella; Gibb, Rory; Glover-Kapfer, Paul; Jones, Kate E. (WWF-UK, Woking, UK, 2017)
      are urgently needed to understand how global change is affecting wildlife and ecosystems. Sound is an important component of any habitat, and sound recordings made in the field offer potentially rich sources of ecological ...
    • Patterns and Projections of High Tide Flooding along the U.S. Coastline Using a Common Impact Threshold. 

      Sweet, W.V; Dusek, G; Obeysekera, J; Marra, J.J (NOAA, NOS Center for Operational Oceanographic Products and Services, Silver Spring, MD, 2018)
      For forecasting purposes to ensure public safety, NOAA has established three coastal flood severity thresholds. The thresholds are based upon water level heights empirically calibrated to NOAA tide gauge measurement s ...
    • Patterns of suspended and salp-ingested microplastic debris in the North Pacific investigated with epifluorescence microscopy. 

      Brandon, Jennifer A.; Freibott, Alexandra; Sala, Linsey M. (2020)
      Microplastics (< 5 mm) have long been a concern in marine debris research, but quantifying the smallest microplastics (< 333 μm) has been hampered by appropriate collection methods, like net tows. We modified standard ...
    • People of the Ice Bridge: the future of the Pikialasorsuaq. 

      Pikialasorsuaq Commission (Inuit Circumpolar Council Canada, Ottawa, Canada, 2017)
      Kalaallisut (West Greenlandic) name for the North Water polynya shared by Canada and Greenland. Polynyas are areas of open water that remain ice-free throughout the winter due to ocean and wind currents. They are incredibly ...
    • Performance Verification Statement for NOC Nitrate Analyzer. 

      Johengen, T; Purcell, H; Tamburri, M; Loewensteiner, G.J.; Schar, D; McManus, M; Walker, G (Alliance for Coastal Technologies (ACT), Solomons, MD, 2016)
      The Alliance for Coastal Technology (ACT) conducted a sensor verification study of in situ nutrient analyzers during 2016 to characterize performance measures of accuracy, precision and reliability. The verification ...
    • Performance Verification Statement for Systea WIZ Probe Phosphate Analyzer. 

      Johengen, T; Purcell, H; Tamburri, M; Loewensteine, D; Smith, G.J.; Schar, D.; McManus, M.; Walker, G.; Stauffer, B. (Alliance for Coastal Technologies (ACT), Solomons, MD, 2017)
      The Alliance for Coastal Technology (ACT) conducted a sensor verification study of in situ nutrient analyzers during 2016 to characterize performance measures of accuracy, precision and reliability. The verification ...
    • Performance Verification Statement for the RBR XR-420 and XR-620 CTD Salinity Sensors. 

      Gilbert, S.; Gundersen, K.; Johengen, T.; McKissack, T.; McIntyre, M.; Pinchuk, A.; Purcell, H.; Robertson, C.; Schar, D.; Smith, G.J.; Tamburri, M.; Wells, D. (Alliance for Coastal Technologies (ACT), Solomons, MD, 2008)
      Instrument performance verification is necessary so that effective existing technologies can be recognized, and so that promising new technologies can become available to support coastal science, resource management, and ...
    • Performance Characteristics of “Spotter,” a Newly Developed Real-Time Wave Measurement Buoy. 

      Raghukumar, Kaustubha; Chang, Grace; Spada, Frank; Jones, Craig; Janssen, Tim; Gans, Andrew (2019)
      The Spotter is a low-cost, real-time, solar-powered wave measurement buoy that was recently developed by Spoondrift Technologies, Inc. (Spoondrift). To evaluate the data quality of the Spotter device, we performed a series ...
    • Performance Demonstration Statement American Ecotech NUT 1000. 

      Carrol, M.; Chigounis, D.; Cook, J.; Gilbert, S.; Johengen, T.; Koles, T.; McKissack, T.; Wells, D.; McIntyre, M.; Pinchuk, A.; Purcell, H.; Robertson, C.; Schar, D.; Smith, G.J.; Tamburri, M. (Alliance for Coastal Technologies (ACT), Solomons, MD, 2007)
      A key to the successful adoption, and transition to operational use, of new technologies is broad community awareness and confidence. The Alliance for Coastal Technologies (ACT) has therefore completed a Performance ...
    • Performance Demonstration Statement Contros HydroC/CO2. 

      Schar, D.; Atkinson, M.; Johengen, T.; Pinchuk, A.; Purcell, H.; Robertson, C.; Smith, G.J.; Tamburri, M. (Alliance for Coastal Technologies (ACT), Solomons, MD, 2009)
      Alliance for Coastal Technology (ACT) demonstration projects are designed to characterize performance of relatively new and promising instruments for applications in coastal science, coastal resource management and ocean ...
    • Performance Demonstration Statement PMEL MAPCO2/Battelle Seaology pCO2 Monitoring System. 

      Schar, D.; Atkinson, M.; Johengen, T.; Pinchuk, A.; Purcell, H.; Robertson, C.; Smith, G.J.; Tamburri, M. (Alliance for Coastal Technologies (ACT), Solomons, MD, 2009)
      Alliance for Coastal Technology (ACT) demonstration projects are designed to characterize performance of relatively new and promising instruments for applications in coastal science, coastal resource management and ocean ...
    • Performance Demonstration Statement Pro-Oceanus Systems Inc. PSI CO2-Pro. 

      Schar, D.; Atkinson, M.; Johengen, T.; Pinchuk, A.; Purcell, H.; Robertson, C.; Smith, G.J.; Tamburri, M. (Alliance for Coastal Technologies (ACT), Solomons, MD, 2009)
      Alliance for Coastal Technology (ACT) demonstration projects are designed to characterize performance of relatively new and promising instruments for applications in coastal science, coastal resource management and ocean ...
    • Performance Demonstration Statement Satlantic ISUS V3 Nitrate Sensor. 

      Carrol, M.; Chigounis, D.; Cook, J.; Gilbert, S.; Johengen, T.; Koles, T.; McKissack, T.; Wells, D.; McIntyre, M.; Pinchuk, A.; Purcell, H.; Robertson, C.; Schar, D.; Smith, G.J.; Tamburri, M. (Alliance for Coastal Technologies (ACT), Solomons, MD, 2007)
      In this Demonstration Statement, we present the performance results of the Satlantic ISUS V3 under diverse environmental conditions in surface mapping, depth profiling and moored deployment field tests. A total of three ...
    • Performance Demonstration Statement Sunburst Sensors SAMI-CO2. 

      Schar, D.; Atkinson, M.; Johengen, T.; Pinchuk, A.; Purcell, H.; Robertson, C.; Smith, G.J.; Tamburri, M. (Alliance for Coastal Technologies (ACT), Solomons, MD, 2009)
      Alliance for Coastal Technology (ACT) demonstration projects are designed to characterize performance of relatively new and promising instruments for applications in coastal science, coastal resource management and ocean ...
    • Performance Demonstration Statement WET Labs Cycle-P Nutrient Analyzer. 

      Carroll, M.; Chigounis, D.; Cook, J.; Gilbert, S.; Johengen, T.; Koles, T.; McKissack, T.; Wells, D.; McIntyre, M.; Pinchuk, A.; Purcell, H.; Robertson, C.; Schar, D.; Smith, G.J.; Tamburri, M. (Alliance for Coastal Technologies (ACT), Solomons, MD, 2007)
      During this Performance Demonstration t he WET Labs Cycle-P was successfully tested in a fixed, surface mooring deployment at three test sites including freshwater, brackish water, and saltwater coastal environments. ...