Browsing SINTEF Open by Author "Petrich, Chris"
Now showing items 1-20 of 22
-
A Note on Remote Temperature Measurements with DS18B20 Digital Sensors
Petrich, Chris; Sæther, Irina Vasiljeva; Dang, Nga Phuong; Kleven, Øystein; O'Sadnick, Megan (Chapter, 2020)Digital temperature sensors provide an attractive means to conveniently record ice and water temperatures in remote locations. Unlike conventional analogue techniques, a digital sensor performs a physical measurement, ... -
Assessment of Hydrocarbon Degradation Potential in Microbial Communities in Arctic Sea Ice
Peeb, Angela; Dang, Nga; Truu, Marika; Hiie, Nõlvak; Petrich, Chris; Truu, Jaak (Peer reviewed; Journal article, 2022)The anthropogenic release of oil hydrocarbons into the cold marine environment is an increasing concern due to the elevated usage of sea routes and the exploration of new oil drilling sites in Arctic areas. The aim of this ... -
Biotransformation of chemically dispersed diesel at sub-zero temperatures using artificial brines
Dang, Nga Phuong; Petrich, Chris; O'Sadnick, Megan; Toske, Lisa (Peer reviewed; Journal article, 2020)The biotransformation of hydrocarbon compounds in seawater at sub-zero temperature has gained research interest in recent years with the most focus placed on temperatures around 0°C. In this study, biotransformation of ... -
Crude oil migration in sea-ice: Laboratory studies of constraints on oil mobilization and seasonal evolution
Oggier, Marc; Eicken, Hajo; Wilkinson, Jeremy; Petrich, Chris; O'Sadnick, Megan (Journal article; Peer reviewed, 2019)Rising Arctic maritime activities and hydrocarbon development increase the risk of an oil spill in and under Arctic sea-ice. Oil spilled under growing sea ice would be encapsulated within the ice cover. During spring and ... -
Examination of ice reports from vessel traffic along the Norwegian coastline, 2014-2022
O'Sadnick, Megan; Petrich, Chris (Peer reviewed; Journal article, 2023)The Norwegian Coastal Administration provides information on ice conditions for vessels traveling in Norwegian waters primarily from the Swedish border to Kristiansand as well as Kirkenes, a port located in the far north ... -
From above and standing atop- two views of Norwegian fjord ice
O'Sadnick, Megan; Petrich, Chris; Brekke, Camilla; Skardhamar, Jofrid (Lecture, 2020) -
Hvordan håndteres avrenning fra ferskfisktransport i andre fiskenasjoner, en komparativ studie av Irland, Island og Færøyene
Rotabakk, Bjørn Tore; Petrich, Chris; Lerfall, Jørgen (Nofima rapportserie, Research report, 2022)Det ble gjennomført en komparativ studie hos villfiskforedlere, lakseslakteri, transportbyrå og tilsynsmyndigheter i Irland, Island og Færøyene der man diskuterte problemstillingen rundt avrenning fra lastebiler som ... -
Ice Conditions in Beisfjord, Norway from 2021–2023
O'Sadnick, Megan; Petrich, Chris (Peer reviewed; Journal article, 2023)Since 2017, observations of ice conditions have been made in the northern Norwegian fjord, Beisfjord, to better understand the mechanisms of ice formation and variability in ice thickness, crystallography, and properties ... -
Ice conditions in northern Norwegian fjords: Observations and measurements from three winter seasons, 2017–2020
O'Sadnick, Megan; Petrich, Chris; Brekke, Camilla; Skardhamar, Jofrid; Kleven, Øystein (Peer reviewed; Journal article, 2022)Freshwater provided by rivers beginning deep within the mountains, feeds into fjords along the coast of Norway, often forming a brackish surface layer that will change in its salinity, thickness, and extent throughout the ... -
Ice conditions in northern Norwegian fjords: Observations and measurements from three winter seasons, 2017–2020
O'Sadnick, Megan; Petrich, Chris; Brekke, Camilla; Skardhamar, Jofrid; Kleven, Øystein (Peer reviewed; Journal article, 2022)Freshwater provided by rivers beginning deep within the mountains, feeds into fjords along the coast of Norway, often forming a brackish surface layer that will change in its salinity, thickness, and extent throughout the ... -
Ice extent in sub-arctic fjords and coastal areas from 2001 to 2019 analyzed from MODIS imagery
O'Sadnick, Megan Eileen; Petrich, Chris; Brekke, Camilla; Skardhamar, Jofrid (Peer reviewed; Journal article, 2020)Results examining variations in the ice extent along the Norwegian coastline based on the analysis of Moderate Resolution Imaging Spectroradiometer (MODIS) images from 2001 to 2019,February through May, are presented. A ... -
Ice Formation in Norwegian Fjords – Findings from the 2018 - 2019 Field Season
O'Sadnick, Megan; Petrich, Chris; Kleven, Øystein; Skardhamar, Jofrid; Brekke, Camilla (Chapter, 2020)Understanding ice conditions in fjords is imperative to ensure safe operations and to protect the surrounding environment. Seven fjords in northern Norway were visited in March 2019, six with significant ice cover. In each ... -
Ice load measurements on Rätan concrete dam using different sensor types
Hellgren, Rikard; Petrich, Chris; Arntsen, Bård; Malm, Richard (Peer reviewed; Journal article, 2021)Concrete dams in cold regions are designed to withstand loads from the ice sheet on top of the reservoir.However, the ice load's magnitude and return period are among the most considerable uncertainties in safety assessments ... -
Microstructure evolution of young sea ice from a Svalbard fjord using micro-CT analysis
Salomon, Martina Lan; Maus, Sønke; Petrich, Chris (Peer reviewed; Journal article, 2021)We analysed the three-dimensional microstructure of sea ice by means of X-ray-micro computed tomography. Microscopic (brine- and air- pore sizes, numbers and connectivity) and macroscopic (salinity, density, porosity) ... -
Numerical analysis of ice loads on Taraldsvikfossen dam
Seger, Andreas; Sand, Bjørnar; Arntsen, Bård; Petrich, Chris; O'Sadnick, Megan (Chapter, 2020)Static ice loads (ice actions) are a key design parameter for dams in cold climates. Since 2012,ice stresses have been measured at Taraldsvikfossen reservoir located in Narvik, Norway. Similar to earlier observations in ... -
Reduksjon av smeltevann fra fisketransport
Rotabakk, Bjørn Tore; Petrich, Chris; Lerfall, Jørgen (Nofima rapportserie, Research report, 2023)Undersøkelser i prosjektet viser at det er store forskjeller mellom de ulike aktørene i bransjen med tanke på temperaturkontroll av fisk. Hovedutfordringen med avrenning ligger nok hos produsentene, der fisken generelt ... -
Redusere avrenning fra ferskfisk transport på lastebiler
Petrich, Chris; Rotabakk, Bjørn Tore; Lerfall, Jørgen (Lecture, 2022)By law, fresh fish is transported on ice in the EEA. This system is tried and proven and works perfectly except that upward of 1000 L of meltwater drain onto the road from a typical trailer load. This is most noticeable ... -
Shewanella baltica in a Microbial Fuel Cell for Sensing of Biological Oxygen Demand (BOD) of Wastewater
Dang, Nga; Petrich, Chris; Pasztor, Dorina; Schneider, György; Calay, Rajnish K (Peer reviewed; Journal article, 2024) -
Static ice loads on a dam in a small Norwegian reservoir
Petrich, Chris; Sæther, Irina Vasiljeva; O'Sadnick, Megan; Arntsen, Bård (Chapter, 2020)Ice loads on a concrete dam have been calculated from stress measurements in Taraldsvikfossen Reservoir, a small reservoir in Narvik, Norway, during three winter seasons. Ice thickness was in the range of 0.5 to 1.0 m, and ... -
Tilgjengelig utstyr for å hindre avrenning
Rotabakk, Bjørn Tore; Petrich, Chris (Nofima rapportserie, Research report, 2023)I denne rapporten er tilgjengelige løsninger for å hindre avrenning oppsummert. Tette kasser fremstår som et alternativ som raskt kan implementeres hvis fisken er tilstrekkelig nedkjølt. Tette kasser må enten være laget ...