Getting started

System requirements
Fortran90 compiler
Locating netCDF library
Downloading DART
Compiling DART
Verifying installation

What is data assimilation?

Introduction to ensemble data assimilation
The Lorenz 63 model and its relevance to data assimilation
Data assimilation in DART using the Lorenz 63 model

What is DART?

What is DART?
The benefits of using DART
A brief history of DART
High-level data assimilation workflows in DART
DART’s design philosophy
Important capabilities of DART
Quantile-Conserving Ensemble Filter Framework

Run DART with your model

Can I run my model with DART?
Instructions for porting a new model to DART
DART build system
Assimilation in a complex model
Message Passing Interface
Inflation
Required model_mod routines
Suggestions for a “simple” model
Suggestions for a “complex” model
How to test your model_mod routines
Controlling which files are output by filter
Advice for models with multiple vertical coordinate options
Data management in DART
Programs included with DART

Observations

Adding your observations to DART
How DART supports different types of observations: the preprocess program
How DART stores observations: observation sequence (obs_seq) files
Detailed structure of an obs_seq file
Creating an obs_seq file of synthetic observations
Creating an obs_seq file from real observations
Available observation converter programs
Manipulating obs_seq files with the obs_sequence_tool
The difference between observation TYPE and QUANTITY
Adding support for a new observation TYPE
Radiances

Observation Converters

DART Observations
Converter programs

Diagnostics

Checking your initial assimilation
Computing filter increments
Computing filter increments using a complex model
DART missing data value
DART quality control field
Examining the obs_seq.final file
MATLAB observation space diagnostics

Theory

DART Tutorial
Conditional probability and Bayes’ theorem
DART_LAB Tutorial
CLM-DART Tutorial
WRF-DART Tutorial
QCEFF: Examples with the Lorenz 96 Tracer Model

Models

Supported Models

Contributing and Community

Contributors’ guide
Requesting features and reporting bugs
Mailing list

Guide

DART Manhattan Differences from Lanai Release Notes
Forward Operators
Approaches for Common Situations
Parallelism Implementation Details
Other Parallelism Options
State Stucture
Filter async modes
Distributed State

Misc

Multi-Component CESM+DART Setup

Root

Copyright
Changelog

DART

Adding support for a new observation TYPE
View page source

Adding support for a new observation TYPE

If you would like to add support for a new observation TYPE, see MODULE obs_def_mod for detailed information.

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