Abstract
Abstract. While the dynamics of narrow fjords, i.e. narrow with respect to their internal Rossby radius, have been widely studied, it is only recently that interest in studying the physics of broad fjords was sparked due to their importance in glacial ice melting (in Greenland, especially). Here, we present a comprehensive set of data collected in Fortune Bay, a broad, mid-latitude fjord located on the northwest Atlantic shores. Aside from being wide (15–25 km width) and deep (600 m at its deepest), Fortune Bay also has the characteristics of having steep slopes, having weak tides and being strongly stratified from spring to fall. Thus, and since strong along-shore winds also characterize the region, this system is prone to interesting dynamics, generally taking the form of transient upwelling and downwelling travelling along its shores, similar to processes encountered in broad fjords of higher latitudes. The dataset collected to study those dynamics consists of water column physical parameters (temperature, salinity, currents and water level) and atmospheric forcing (wind speed and direction, atmospheric pressure, air temperature, and solar radiation) taken at several points around the fjord using oceanographic moorings and land-based stations. The program lasted 2 full years and achieved a good data return of 90 %, providing a comprehensive dataset not only for Fortune Bay studies but also for the field of broad fjord studies. The data are available publically from the SEANOE repository (https://doi.org/10.17882/62314; Donnet and Lazure, 2020).
Highlights
Fortune Bay is a broad fjord-like embayment located on the south coast of Newfoundland, a large island in the northwest Atlantic (Fig. 1)
Additional measurements consisting of CTD profiles were collected, and a separate trip was organized in August 2016 to get a better seasonal picture of the temperature and salinity field over the whole region
Outside the failure of F3B01 and 02 top mooring part (10 units lost at once), used were disposable Onset HOBO TidbiTs (UTBI) were typically lost during grappling operations when releases could not be triggered
Summary
Fortune Bay is a broad fjord-like embayment located on the south coast of Newfoundland, a large island in the northwest Atlantic (Fig. 1). It is about 130 km long and 15–25 km wide, with a maximum depth of about 600 m. To any coastal areas, tides, winds, freshwater input and remote forcing (e.g. pycnocline and sea-level differences with shelf water) all play a role in the dynamics of broad fjords (e.g. see Cottier et al, 2010, for a review).
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
