Sequoia Scientific

Particles in Europe (PiE) 2023

Updated 29th September: UPDATED PiE 2023 program published 27th September. ABSTRACT VOLUME published 28th September. 

Download the program only.

Download the PiE 2023 Abstract Volume (available ~ 1st October).

A printed version of the program will be distributed. The Abstract Volume will NOT be printed.

Google Map link to venues and hotel locations HERE.

Sign up for the PiE mailing list HERE!



PiE 2023 will take place Tue-Thu 3 – 5th October 2023, with an icebreaker Monday evening 2nd October 2023.


PiE 2023 will be held in the main building of the HCMR Thalassocosmos complex, which is comprised of the Cretaquarium, HCMR main building and aquaculture laboratories in Heraklion, Crete, Greece. Click thumbnails for overview.

HCMR Auditorium

HCMR Auditorium

HCMR Auditorium

HCMR Auditorium

HCMR on Crete in the Mediterranean

HCMR on Crete in the Mediterranean

HCMR Complex on Crete

HCMR Complex on Crete

Who Should

HCMR Foyer

HCMR Foyer

Attend PiE?

PiE brings together some of the world’s experts in measuring and monitoring particles in water. The presentations are not limited to specific technology or field of study. Anybody interested in measuring, monitoring, modeling or managing particles in oceans, rivers, lakes, storm water, streams and ice may attend: Researchers, students, environmental officials, government employees, and monitoring agencies should attend the meeting. Broadly, examples of topics of interest are:

  • Marine and hydrological sediment transport
  • Biological studies
  • Maintenance and Contaminated-Sediment Dredging
  • River and Reservoir sedimentation
  • Turbine Abrasion
  • Particles in Drilling for oil and gas
  • Particle Measurement technologies
  • Optics/Acoustics of Particles and Flocs
  • Marine Optics & Remote Sensing

Keynote Speakers

Professor Thorbjoern J. Andersen, University of Copenhagen, Denmark: ‘Microplastics and suspended sediment dynamics in an East African river.’

Dr. Aristomenis Karageorgis, Director of the Institute of Oceanography, HCMR, Greece: ‘Optical studies in the Eastern Mediterranean Sea: transmissometry and particle size measurements.’

Abstracts – abstract submission is OPEN!!

Abstract deadline: 31st August 2023 30th June 2023.
Download the abstract guidelines HERE, then submit YOUR extended abstract (8 pages max) HERE.
Abstract Acceptance Notification will be sent no later than Friday 8th September. (For abstracts receied by 30th June, notification will be no later than 14th July).


For PiE 2023, the following fees will apply:

Attendees: USD 275 per person.
Spouses: USD 110 (includes icebreaker, excursion & tour, conference dinner)
Exhibitors: USD 550. Includes one attendee. Additional booth personnel will have to register as attendees.

Registration is OPEN – click here to register and pay.

Target Dates

Abstract Deadline: 31st August 2023
Abstract Acceptance Notification: No later than Friday 8th September.
Registration Deadline: 11th September 2023

Program (updated 9/25/2023)

Monday 2nd October
15:00-17:30: Exhibitor Setup @ HCMR
17:30-19:00: Registration and Icebreaker @ HCMR

Tuesday 3rd October
8.30 – 8:50: Registration @ HCMR
8:50-9:00: Welcome
9:00-10:50: Suspended Particles I
10:50-11:10: Coffee Break
11:10-12:25: Methods I
12:25-13:25: Lunch
13:25-15:05 Suspended Particles II
15:05-15:25 Coffee Break
15:25-16:40: Optics & Acoustics
16:40: End of Day

Wednesday 4th October
9.00 – 15.00: Excursion
17:30 – 19:00 Guided Tour of Cretaquarium
20.00 – 23:30: Conference dinner in Cretaquarium

Thursday 5th October
9:00 – 10:00: The Mediterranean
10:00-10:50: Methods II
10:50-11:10: Coffee Break
11:10-12:55: Methods II, continued
12:55-13:00: Conclusion
13:00-14:00: Lunch, Goodbye


Limited space will be available for up to 5 companies interested in exhibiting their equipment. Exhibitor rates will be EUR 500 / USD 550. Each Exhibitor will be given the opportunity to introduce their products to the full gathering in a three-minute presentation. Contact Sequoia for more information about exhibiting at PiE!


Astir Beach Hotel (special price for PiE 2023 attendees if booked before end of July 2023. DO NOT USE THEIR ONLINE BOOKING: Contact them directly via the form on their website or email them)

Your Memories Hotel

Erato Hotel

Gouves Park Holiday Resort

Kri Kri Village – less than 10′ walk from HCMR – website not reliable: Book HERE.

The map below shows the HCMR venue location as well as the locations of the hotels above.
All locations are within a 10–20-minute walk from HCMR.


For more information, please contact:
In Europe – Dr. Aristomenis Karageorgis
Outside of Europe – Dr. Ole Mikkelsen

Organizing Committee

PiE 2023 is organized by Dr. Ole Mikkelsen (Sequoia) and Dr. Aristomenis Karageorgis, Dr. Stella Psarra, Dr. Andrew Banks, and Mrs. Foteini Pateraki (HCMR – Hellenic Centre for Marine Research).



  • Will there be a virtual component to PiE 2023?
    • No. PiE 2023 will be an in-person event only
  • Will I get assigned a poster or an oral presentation?
    • Depending on the number of abstracts received, the organizers reserve the right to assign some presenters to poster presentations, to short (3-5 minute) oral presentations or to more ‘standard’ 10-15 minute oral presentations. You will be notified upon abstract acceptance.