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Join us

June 6th-10th, 2022

at the Canvas Stadium, Colorado State University, Fort Collins, Colorado.

Please note this is an 100% in person event with no registration fees.

Hosted by CIRA and the Atmospheric Science Department at Colorado State University

Program available below

Visit the ISDA-Online Website:

Sponsored by:

Office of the Vice President of Research at Colorado State University, Warner Scott Jr. College of Engineering, Department of Atmospheric Science, Cooperative Institute for Research in the Atmosphere, National Science Foundation, and NASA

Image of CSU Stadium
Scientific Organizing Committee:
  • Peter Jan van Leeuwen
  • Steve Fletcher
  • Roland Potthast
  • Nancy Baker
  • Kayo Ide
  • Jenny Sun
  • Massimo Bonavita
  • Daryl Kleist
  • Takemasa Miyoshi
  • Ricardo Todling
  • Yannick Tremolet
Local Organizing Committee
  • Holli Knutson
  • Steve Fletcher
  • Peter Jan van Leeuwen

Event Page for Registered Attendees

invitation password required

Registration & Submissions

Register is now closed

Abstract Submissions – Closed February 15th, 2022

Any inquiries can be directed to Steven Fletcher at:

Event Agenda

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Event Details

Data Assimilation is the science of combining prior knowledge in the form of comprehensive numerical models of (components of) the Earth system with observations of the Earth. It has a strong mathematical background in Bayesian Inference and Inverse modelling, and is crucial for accurate prediction of e.g. weather, coastal oceans, and climate. Huge advances in both theory, models, observations and computational resources have revolutionized the field, with clear and direct societal benefits.

The 8th International Symposium on Data Assimilation (ISDA2022) continues a series of well-received and attended events: ISDA2019 in Kobe, ISDA2018 in Munich, ISDA2016 in Reading, ISDA2015 in Kobe, ISDA2014 in Munich and the first two symposia at DWD in Offenbach in 2012 and 2011, following the grant vision of Dr. Roland Potthast. This the first time it is organized in the USA, and we are expecting over 150 participants.

The main objective of the conference is to bring together data-assimilation experts from all over the world to discuss problems and progress in the field of data assimilation and the use of satellite observations for weather and climate. The expertise of the participants will range from fundamental mathematics and developing new data-assimilation methodologies being derived and developed at many academic and research institutions from around the world, through to scientists working at operational weather and climate prediction centers, such as NASA/GMAO, ECMWF, NOAA/NCEP/EMC, ONR/NRL, and Met Offices from all over the world.

Discussion topics will include Method Development and Mathematics of Data Assimilation, Satellite Data Assimilation, Error Covariance Estimation in Observations, State and Model, Coupled Data Assimilation Developments, Convective Scale Data Assimilation, Atmospheric Chemistry, and Aerosol Data Assimilation, Earth Systems Components and Further Applications of Data Assimilation, and Machine Learning for Data Assimilation.

A number of studentships are available, both for USA and international PhD students.
A studentship consists of paid travel from your departure location to the conference and back, hotel costs for the duration of the conference, and a per diem for meals during the conference.
To apply to be considered for a studentship send your abstract, a motivation letter on why your should be offered a studentship, both scientifically and perhaps otherwise, and a consensus statement from your supervisor to with header ‘ISDA studentship’. The application deadline is March 11, 2022.
Please note that you also need to send your abstract in via the ISDA website.

From Denver International Airport (DIA):

  • Preferred transportation from DIA is Groome — Click Here to learn more
  • To view the DIA transportation website — Click Here

Getting around Fort Collins:

Fort Collins public transportation is run through Transfort. They offer bus lines as well as a MAX line that runs parallel with the university.
  • To learn more about the TransFort bus routes — Click Here
  • To learn about the MAX line — Click Here
  • Fort Collins also offers a Bike Share program — Click Here to learn more
  • If you choose to bike Fort Collins you can view and download a Bike Route Map — Click Here

Holli Knutson (Administrative Contact)
CIRA/Colorado State University


Dr. Steven Fletcher (Science Program Contact)
CIRA/Colorado State University


Professor Peter Jan van Leeuwen (Science Program Contact)
Dept. of Atmospheric Science/Colorado State University