Mapping of IGC-EMO nutrient loads on the high resolution HD model grid (Version 1)

Project: coastDat - Regional Water and Matter Fluxes at the Land-Ocean Interface - In order to better understand the global coastal systems and the dangers and risks associated with them, it is important to examine the atmosphere, the land, hydrology, the ocean and especially their interactions and feedbacks. In this project, we provide data on water and matter transport at the land surface. Currently, contributions were made by Umweltforschungszentrum Leipzig (UFZ) and the “Regional Land and Atmosphere Modeling” department of the Institute of Coastal Systems - Analysis and Modeling at Helmholtz-Zentrum Hereon as well as from NIOZ and IOW. Our aim is to quantify the associated cycles of water and matter and their changes, mainly for the transition from land to the ocean. Our work contributes to GCOAST (Geesthacht Coupled cOAstal model SysTem) --> https://www.hereon.de/institutes/coastal_systems_analysis_modeling/research/gcoast/index.php.en Summary: Under the heading of the OSPAR convention (Sect. 1.1), the IGC-EMO database of daily freshwater inflows and nutrient loads was compiled by van Leeuwen and Lenhart (2021), which covers the major rivers discharging into the Baltic Sea, North Sea and Northeast Atlantic (Sect. 1.2). In this database, the data are distributed in separate ASCII files according to the respective country and river. In order to allow an easier utilization within a regional Earth System or ocean modelling framework, we mapped the IGC-EMO data onto the flow grid of the European 1/12° domain of the Hydrological Discharge (HD) model (Sect. 1.3). This mapping was done for daily time series of discharge, total nitrogen (N), total phosphorus (P) and Silicate for the period 1940-2022 following the procedure described in Sect. 1.4. Detailed information you can find in the specified sections of the attached PDF https://www.wdc-climate.de/ui/entry?acronym=IGC-EMO_HD_info