In 2012, the hydrochemistry of surface water was monitored at Helgoland Roads station on every workday, typically before 9 a.m. Temperature was measured on board immediately after sampling. Visibility was measured on board using a Secchi Disk. Salinity, dissolved inorganic nutrients, pH and oxygen were measured from a bucket sample in the laboratory.
In 2011, the hydrochemistry of surface water was monitored at Helgoland Roads station on every workday, typically before 9 a.m. Temperature was measured on board immediately after sampling. Visibility was measured on board using a Secchi Disk. Salinity, dissolved inorganic nutrients, pH and oxygen were measured from a bucket sample in the laboratory.
In 2009, the hydrochemistry of surface water was monitored at Helgoland Roads station on every workday, typically before 9 a.m. Temperature was measured on board immediately after sampling. Visibility was measured on board using a Secchi Disk. Salinity and dissolved inorganic nutrients were measured from a bucket sample in the laboratory.
In 2008, the hydrochemistry of surface water was monitored at Helgoland Roads station on every workday, typically before 9 a.m. Temperature was measured on board immediately after sampling. Visibility was measured on board using a Secchi Disk. Salinity and dissolved inorganic nutrients were measured from a bucket sample in the laboratory.
In 2004, the hydrochemistry of surface water was monitored at Helgoland Roads station on every workday, typically before 9 a.m. Temperature was measured on board immediately after sampling. Visibility was measured on board using a Secchi Disk. Salinity and dissolved inorganic nutrients were measured from a bucket sample in the laboratory.
Glacier outlines of Hallstätter Glacier in the Dachstein Massif, Austria, are periodically mapped as part of the respective glacier mass balance monitoring program. Outlines are provided in shapefile format and were mapped based on the available DEMs, historical images, orthophotos or satellite images. Glacier area has decreased from 5.3 km2 in 1856 to 2.4 km2 in 2023. Detailed Information is given in Helfricht (2009), Kara (2020) and Bertolotti et al. (in prep.) and in the associated readme files. New outlines will be added as they become available.
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