Quarterly Update: February 2022

Communication with our working group

We are still searching for a good workflow and effective communication channel between the DAWG and the PIEC. From our perspective, a PI liaison between the DAWG and the PIs would:

We also note that the biannual meeting between the PIEC and the WG chairs is overdue (ref: WG guidelines). We suggest that this meeting be scheduled and that communication be included on the agenda.

FitACF 3.0 update

The DAWG received the following requests from the PIEC in November 2021:

We request that all discussions related to the software structure, performance, user interface and documentation occur within the DAWG. Please bring suggestions to us at an early stage so that we can discuss them together.

Elevation angle field names for FitACF

Deadline to provide feedback: 31 March 2022. If you need additional time, please contact us.

We have updated the field names in the fitacf file format to include more descriptive terms for the elevation angle parameters in FitACF 3.0. Specifically, we have added the fields elv_fitted and elv_error, and removed the fields elv_low and elv_high. This change was approved by the PIEC in November 2021.

We have also completely removed the XCF arrays that FitACF 3.0 does not populate (x_qflg, x_v, x_p_l, etc). These changes apply only to fitacf files created with FitACF 3.0. There is no change to the output when using FitACF 2.5.

We hope that we will only need to update the file format once. Therefore, we would appreciate your feedback on the new file format so that we can implement any changes before the code is released.

A sample file in the new format is available here.

You can view the contents of this file using RST’s dmapdump routine:

dmapdump -d modified_format.lyr.fitacf3

If you would like to try reading this file using RST’s IDL routines or pyDARNio, you will need to install the respective development branches from Github, which include the updated code for reading the new file format: