Presentation
DART-X: Software Infrastructure for Prototyping In-Memory Data Transfer Between Ensemble Data Assimilation and Coupled Earth Systems Models
DescriptionData assimilation (DA) integrates real-world data into coupled climate models, enhancing prediction accuracy and capturing Earth system complexity. NCAR’s Data Assimilation Research Testbed (DART) is an ensemble DA tool for climate predictions with NCAR’s Community Earth System Model (CESM). Traditionally, DART has modified "restart" files written to disk to influence models, involving significant I/O and stop/restart processes, which are computationally expensive, even on large supercomputers.
This work explores using the National Unified Operational Prediction Capability (NUOPC) layer to enable direct in-memory data transfer between DART and CESM. We describe the development of a NUOPC cap for DART, focusing on strategies for full software integration and minimal disruption to existing functionalities. The infrastructure addresses software incompatibilities and includes decisions on tools, frameworks, and workflow optimizations. This approach aims to enhance efficiency and scalability in data assimilation, offering the first prototype for in-memory data transfer between DART and CESM.
This work explores using the National Unified Operational Prediction Capability (NUOPC) layer to enable direct in-memory data transfer between DART and CESM. We describe the development of a NUOPC cap for DART, focusing on strategies for full software integration and minimal disruption to existing functionalities. The infrastructure addresses software incompatibilities and includes decisions on tools, frameworks, and workflow optimizations. This approach aims to enhance efficiency and scalability in data assimilation, offering the first prototype for in-memory data transfer between DART and CESM.

Event Type
ACM Student Research Competition: Graduate Poster
ACM Student Research Competition: Undergraduate Poster
Doctoral Showcase
Posters
TimeTuesday, 19 November 202412pm - 5pm EST
LocationB302-B305
TP
XO/EX