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Redistribution of HELCOM nutrient loads on the high resolution HD model grid (Version 1)

For the Helsinki Commission (HELCOM), annual waterborne basin inflows of total nitrogen (N) and total phosphorus (P) were compiled for the seven main Baltic Sea sub-basins (Sect. 1.1). In order to allow the utilization within a regional Earth System or ocean modelling framework, we redistributed these nutrient loads spatially and temporally using a dataset of bias corrected discharge that was generated with the Hydrological Discharge (HD) model (Sect. 1.2). Following the spatial and temporal downscaling procedure described in Sect. 1.3, we generated a dataset of daily riverine and annual direct nutrient loads (N and P) into the Baltic Sea at 1/12° resolution from 1901-2019. Detailed information you can find in the specified sections of the attached PDF

https://www.wdc-climate.de/ui/entry?acronym=HELCOM_HD_info


In November 2023, the bias corrected discharges were improved after a bug was found (see "Bias corrected high resolution river runoff over Europe (Version 1.0)", https://doi.org/10.26050/WDCC/Biasc_hr_riverro_Eu ).

Consequently, the redistributed HELCOM loads of nitrogen (N) and phosphorus (P) were also updated using the improved bias corrected discharge dataset (see Version 1.1: https://www.wdc-climate.de/ui/entry?acronym=HELCOM_HD_v1_ 1). However, changes in the N and P loads into the Baltic Sea are marginal. The annual basin sums are the same, only daily values may have slightly changed.

Simple

Date (Publication)
2023-06-22
Edition

1

Citation identifier
HELCOM_HD_v1
Citation identifier
doi:10.26050/WDCC/HELCOM_HD_v1
Principal investigator
  Helmholtz-Zentrum Hereon - Dr. Stefan Hagemann
www.hereon.de
Author
  Helmholtz-Zentrum Hereon - Dr. Stefan Hagemann
www.hereon.de
Author
  Leibniz-Institut für Ostseeforschung Warnemünde - Dr. Thomas Neumann
https://www.io-warnemuende.de/
Publisher
  WDC Climate at DKRZ
Point of contact
  Helmholtz-Zentrum Hereon - Dr. Stefan Hagemann
www.hereon.de
Name

NetCDF

Keywords
  • Baltic Sea

Keywords
  • CoastalFutures

Keywords
  • Nitrogen

Keywords
  • Nutrient loads

Keywords
  • Phosphorus

Use limitation

CC-BY-4.0: Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/

Language

eng; USA

N
S
E
W
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Begin date
1901-01-01
End date
2019-12-31
Distribution format
  • NetCDF ()

Transfer size
1192
OnLine resource
https://www.wdc-climate.de/ui/entry?acronym=HELCOM_HD_v1
Hierarchy level
collection
Attribute description
nitrogen_mass_transport_in_river_channel
Descriptor

nitrogen_mass_transport_in_river_channel; unit: t/d

Attribute description
nitrogen_mass_transport_in_river_channel
Descriptor

nitrogen_mass_transport_in_river_channel; unit: t/d

Attribute description
phosphorus_mass_transport_in_river_channel
Descriptor

The amount of total phosphorus mass transported in the river channels from land into the ocean. This quantity can be provided at a certain location within the river network and floodplain (over land) or at the river mouth (over ocean) where the river enters the ocean. "River" refers to water in the fluvial system (stream and floodplain). Phosphorus means phosphorus in all chemical forms, commonly referred to as "total phosphorus". [CF-Standard Name]; unit: t/d

Attribute description
phosphorus_mass_transport_in_river_channel
Descriptor

The amount of total phosphorus mass transported in the river channels from land into the ocean. This quantity can be provided at a certain location within the river network and floodplain (over land) or at the river mouth (over ocean) where the river enters the ocean. "River" refers to water in the fluvial system (stream and floodplain). Phosphorus means phosphorus in all chemical forms, commonly referred to as "total phosphorus". [CF-Standard Name]; unit: t/d

File identifier
wdc-climate.de:5131620 XML
Metadata language

eng; USA

Hierarchy level
collection
Hierarchy level name

HELCOM_HD_v1

Date stamp
2026-02-04T10:21:32
Metadata standard name

ISO 19115

Metadata standard version

ISO 19115-2:2009

Point of contact
  Helmholtz-Zentrum Hereon - Dr. Stefan Hagemann
www.hereon.de
 
 

Overviews

Spatial extent

N
S
E
W
thumbnail


Keywords


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