The conference is eligible for SYSTA awards (https://iahs.info/About-IAHS/SYSTA.do) to pay the registration fee for remote (on-line) delegates.
Note that an abstract must already be submitted to be considered for an award. 
The closing date for SYSTA applications is Tuesday 26 July 2022 at 12.00 (GMT).
Since the awards are for online participation, SYSTA awardees for this conference can submit SYSTA applications for future IAHS meetings as long as they continue to meet the eligibility criteria.