Dr. Johannes Hahn

Ocean Circulation and Climate Dynamics

Physical Oceanography

  

Dr. Johannes Hahn

Office:
Room: DW-B050c
Phone: +49 431 600-4117
Fax: +49 431 600-4102
Email: jhahn(at)geomar.de

Address:
Düsternbrooker Weg 20
D-24105 Kiel

 

 

Personal information

Name

Name, first name:

Hahn, Johannes

Nationality:

German

Date of birth:

28-July-1982

Place of birth:

Halle (Saale), Germany

   

Research interests

  • dynamics, ventilation and oxygen budget of oxygen minimum zones in the open ocean
  • large-scale to mesoscale circulation and its variability on intra-seasonal to multi-decadal time scales
  • water mass and oxygen distribution and its variability in response to circulation changes
  • velocity, hydrography and oxygen observations in the open ocean from different
    platforms
  • analysis of model simulations to better understand these ocean observations

  

Employment

Neue Seite 1

06/2013 - present
 

Postdoc in the Collaborative Research Center SFB 754 and EU Horizon 2020 project AtlantOS at GEOMAR Helmholtz Centre for Ocean Research Kiel, Germany, Research Division Physical Oceanography

10/2009 – 05/2013
 

PhD student in the Collaborative Research Center SFB 754 at GEOMAR Helmholtz Centre for Ocean Research Kiel, Germany, Research Division Physical Oceanography

  

Education

05

05/2013
 

Dr. rer. nat. - Dissertation title: ‘Oxygen Variability and Eddy-driven Merdional Oxygen Supply in the Tropical North East Atlantic Oxygen Minimum Zone’

10/2009 - 05/2013
 

PhD student in the Collaborative Research Center SFB 754 at GEOMAR Helmholtz Centre for Ocean Research Kiel, Germany, Research Division Physical Oceanography

10/2003 - 09/2009

Diploma in Physics, Martin – Luther – University, Halle (Saale)

 

Publications

All Publications

  

Research Gate

Research Gate

  

Expeditions

2016

2019 (4 weeks)
 

R/V METEOR cruise M156 (personal task: co-chief scientist and PI of the oceanographic research program)

2018 (5 weeks)
 

R/V METEOR cruise M145 (personal task: acquirement/processing of oceanographic data, supervision of students)
  

2017 (5 weeks)
 

R/V Ronald H. Brown cruise RB-17-01, Leg 2 (personal task: implementation of a new sensor setup for online data transmission, acquirement/processing of oceanographic data)
  

2016 (5 weeks)
 

R/V Meteor cruise M130 (personal task: acquirement/processing of oceanographic data, supervision of students)
  

2015 (5 weeks)
 

R/V Meteor cruise M119 (personal task: acquirement/processing of oceanographic data, supervision of students)
  

2014 (4 weeks)
 

R/V Polarstern cruise PS88.2 (co-chief scientist and PI of the oceanographic research program)
  

2014 (5 weeks)
 

R/V Meteor cruise M106 (personal task: acquirement/processing of oceanographic data, supervision of students)
  

2013 (2 days)
 

R/V Skagerak and R/V Oscar von Sydow (personal task: chief scientist during two one-day cruises in the framework of the SFB 754 summer school, Kristineberg, Sweden)
 

2012 (5 weeks)
 

R/V Maria S. Merian cruise MSM22 (personal task: acquirement/processing of oceanographic data)
 

2011 (6 weeks)
 

R/V Maria S. Merian cruise MSM18/2 (personal task: acquirement/processing of oceanographic data)
 

2010 (3 days)
 

R/V Alkor (personal task: supervision of students during practical oceanographic field work)
 

2009 (4 weeks)
 

R/V Meteor cruise M80/1 (personal task: acquirement/processing of oceanographic data)
 

2004 (3 weeks)

R/V Meteor cruise M62/3 (personal task: student research assistance in geophysical field work)