Log in

Log in

project

A1 A2 A3

A4

 

B1 B3 B4

B5 B6 B7

B8 B9

 

C1 C3 C4

C6 C7

 

D2 D3 D5

D6 D7 D8

 

T1

 

Z1 Z2 Z3

Z4 MGK

Project D3


completed in 2014

CO2 flux estimation by four-dimensional variational assimilation of in situ and remote sensing data

inner membersinner publicationspixel blankinner project data

Research Area:
Atmospheric tracer simulations, chemical data assimilation, source estimation via inverse modeling


project d3

The goal of this project is to provide a CO2 Budget for the Rur catchment area including estimates with the 4D-var system EURAD-IM for anthropogenic and biogenic sources, biogenic sinks and lateral in- and outfluxes.

Boundary values will be provided by a nested CO2 transport simulation from European scale of 15 km resolution in steps of 5 km to 1 km Rur catchment resolution. The global lateral boundaries are taken from the MACC II project (MACC-GHG). Anthropogenic CO2 emissions have been downscaled from 0.7°*0.7° resolution TNO emission inventory to 1km*1km horizontal resolution for ten snap codes. Biogenic fluxes will be generated with CLM for the Rur catchment which accounts the heterogeneous pattens of the area. The atmospheric transport will play a key role in the EURAD-IM 4D-var system. On the one hand the forward tracer transport has to be realized with only few diffusion and in a contour preserving manner. On the other hand sensitivity studies with the adjoint transport model aim to optimize not only initial conditions, but also emission sources which shall distinguish anthropogenic and biogenic fluxes. For this purpose a new advection scheme, the Walcek scheme has been integrated in the EURAD-IM. The adjoint advection routine will be validated to quantify theoretical boundaries to which extent observation time series can get analyzed with the 4D-var EURAD-IM system.


Cooperation partner:

2 Member(s):

Hendrik Elbern

PD Dr.
Hendrik Elbern
Principal Investigator
in D3

University of Cologne
Rhenish Institute
for Environmental Research

Aachener Straße 209
50931 Cologne
Germany

icon phone
icon fax
+49 (0)221 400 2220
+49 (0)221 400 2320
icon mail

he@riu.uni-koeln.de

 

 

Johannes Klimpt

Dipl. Math.
Johannes Klimpt
Ph.D. Student
in D3

University of Cologne
Rhenish Institute
for Environmental Research

Aachener Straße 209
50931 Cologne
Germany

icon phone

0221/ 4002220

icon mail

jklimpt@uni-koeln.de

 

 


Precipitation radar Uni Bonn

QR-Code
Das Logo der Rheinischen Friedrich-Wilhelms-Universität; Copyright: Uni Bonn  

logo uni koeln 40x40

  logo rwth aachen 40x40   logo juelich   logo geoverbund small