Category Archives: Spring meeting

Spring meeting: Hydrological Extremes (Utrecht)

Theme: Hydrological extremes

Date: April 20th, 2018
Location: Botanical Garden Utrecht University, Budapestlaan 17, 3584 HD Utrecht
Costs: free of charge

Preliminary Program:

09:30 – 10:00         Welcome
10:00 – 10:30         keynote Philip Ward
10:30 – 10:45         Pitches floods
10:45 – 11:00         Coffee/tea
11:00 – 11:30         keynote Henny van Lanen
11:30 – 11:45         Pitches Drought
11:45 – 12:30         Lunch

12:30 – 13:00         Travel to KNMI

13:00 – 13:10         Welcome – Patrick van den Hoek
13:10 – 13:30         Introduction KNMI – Patrick van den Hoek
13:30 – 13:50         KNMI climate scenarios – Janette Bessembinder
13:50 – 14:20         Precipitation scaling – Geert Lenderink
14:20 – 14:50         New insights in sea level rise – Sybren Drijfhout
15:00 – 15:30         Excursion: Measurement field – Corné Oudshoorn
15:30 – 16:00         Excursion: Weather room / 3D

16:00 Drinks and snacks

Boussinesq Spring Event 2017: Enschede

On June 2, 2017, the Boussinesq Spring Event was held in ITC Faculty of Geo-Information Science and Earth Observation, University of Twente.

In the morning, Walter Immerzeel (Utrecht University) delivered the keynote on “Recent advances in understanding climate, glacier and river dynamics in high mountain Asia”. The talk defined well the theme of the event as “High-Mountain Hydrology”. During the event, Prof. Bob Su (ITC) announced that Walter Immerzeel the winner for Boussinesq Prize 2017.


Afterwards, early-career scientists also pitched their researches, which was followed with a dedicated poster session. Before the end of the day, participants joined the tour to the Grolsch Brewery.

Watch here all the presentations

Morning Program

10:00-10:15 walk in/coffee
10:15-11:15 Keynote: Walter Immerzeel “High-Mountain Hydrology”
11:15-11:20 Boussinesq Prize Announcement
11:20-11:30 Break
11:30-12:30 Pitches (3 mins each)

Afternoon Program

12:30-13:30 Lunch
13:30-15:00 Poster Session
15:00-17:00 Visit to the Grolsch Brewery

Boussinesq Summer Event 2016: Amsterdam

On Friday July 8 the Boussinesq Spring/Summer event was held at the Vrije Universiteit Amsterdam. During the morning session exciting talks by Hugo de Boer (carbon and water fluxes by plants), Josh Dean (carbon in rivers) and Monique Heijmans (carbon in peat soils) set the stage for an inspiring day on the theme Water and Carbon with 29 participants.

After lunch we departed to the Ilperveld. Here we boarded for a 2 hour boat trip through this amazing peatland complex. Michel Hensens guided us through the history of the region. Surprisingly, the now scenic wetlands appeared to have a long history as waste dumpsite of the city of Amsterdam, including being a dump site for hospitals up to the late 1950s. Michel explained how this pollution, which is still in the ground, is being managed and how this improved the botanical and water quality of the area during the last decades.

Halfway the tour, we met up with Ko van Huissteden. Ko explained what equipment he and his research group use in the Ilperveld to measure carbon fluxes coming from peat in order to establish if this site is a net source or sink of green house gases. At 5 o’clock we were back at the Vrije Universiteit, nicely in time to finish the day with well-deserved drinks and snacks.


Martijn Westhoff, Ype van der Velde and Margreet van Marle


09:30 doors open
10:00 Hugo de Boer (UU): Plants: the green pumps in the terrestrial hydrological cycle
10:45 Josh Dean (VU): Terrestrial carbon cycling and the role of the “aquatic pathway”
11:30 Coffee break
11:45 Monique Heijmans (WUR): Water and carbon and (peat) mosses
12:30 Lunch
13:00 Departure to Ilperveld
~16:30 Leave Ilperveld, back to Vrije Universiteit

Boussinesq Summer Event 2015

On Wednesday August 26th the second Boussinesq Spring event was held in Delft. Twenty three participants enjoyed the lectures of Nick van de Giesen, Pieter Stuyfzand, and Ype van de Velde on the theme “Towards long-term hydrological sites?”. After lunch, we made a walk, via the Boussinesqweg, to the laboratories of Deltares. After some coffee we got a tour through the immense hydraulic lab, the geotechnical lab, and a glimpse on the brand new ‘Delta-goot’. The BBQ was canceled due to the hydrological weather, so the day was ended with drinks and indoor pizzas.

Some impressions of the excursion:2015-08-26 14.28.302015-08-26 14.41.482015-08-26 15.16.082015-08-26 15.58.05

Theme “Towards long-term hydrological sites?”
Date: Wednesday August 26th, 2015
Location: PSOR cafe (ground floor, south side), Faculty of Civil Engineering, TU Delft
Costs: none

09:30-10:00 Coffee and tea
10:00-10:45 Prof. Nick van de Giesen (TUD): TAHMO-project
10:45-11:00 Pitches (3)
11:00-11:30 Break
11:30-12:00 Prof. Pieter Stuyfzand (KWR): Lysimeter site Castricum
12:00-12:20 Dr. Ype van de Velde (WUR): Hupselse Beek
12:20-12:35 Pitches (3)

12:35-13:30 Lunch

13:30-16:30 Excursion to labs of Deltares (by foot)
16:30-18:00 Drinks

18:00 BBQ (a small contribution will be asked)

1st Boussinesq Spring meeting 2014

(by Lieke Melsen)


On Monday the 7th of April the first Boussinesq Spring meeting took place. Especially organised for young and early-career scientist, but of course everyone with a scientific background in hydrology was welcome. The meeting, held at Wageningen University, started off with an interesting presentation from Bob Sue (ITC) on land surface fluxes. After the key note the first pitch round started, with only 2 minutes per presentation. The pitch round was a perfect opportunity for all participants to present their current research, ask for advice, shameless advertise the EGU poster or talk, or just to drop an idea. There was a large variety in the talks and the response of the public on the pitch-concept was exclusively positive. There were just some people that had difficulties with sticking to the two-minutes limit…


2014-04-07 14.55.25

After a long break with coffee, tea, and chocolate-eggs for the spring feeling, the morning continued with a presentation from Miriam Coenders on a novel method to estimate surface fluxes and a presentation from Bram te Brake on the use of satellite data to identify clay swelling and shrinkage. Again, this part of the day was closed with a 2-minutes-pitch round.

After three presentations and sixteen pitches, it was definitely time for a good lunch. On long tables we enjoyedthe soup, the muffins, the sandwiches and the fresh fruit, to gain some energy again for the afternoon excursion.

For the excursion, a visit to the Speulderbos-site was planned. After a bus trip and a nice walk through one of the oldest forests of the Netherlands, we reached the measurement site and the flux tower. It was a pity that RIVM had just decided two months earlier to remove most of the measurement equipment, but with some fantasy we could imagine the equipment on the tower ourselves. And of course, there was still the possibility to go to the top of the tower! Some sportive people chose to go up in the tower with the stairs, but also the comfortable option (the elevator) was used to enjoy the view on top of the tower. We were lucky with the nice weather and the views were stunning! The whole program of the day was in the end slightly delayed and therefore we had to skip the afternoon discussions, but of course there was plenty of time for an informal drink to have a chat with all the attendees. The goal of this day, to meet some colleague-scientists and to exchange ideas, was definitely achieved!




Morning program:
09:30 Walk in/coffee
10:00 Bob Su keynote
10:45 Pitches
11:00 Break
11:30 Miriam Coenders (TUD): ‘Measuring evaporation and transpiration rates with DTS’
11:50 Bram te Brake (WUR): ‘In situ and InSAR estimations of changes in clay soil water content’
12:10 Pitches

Afternoon program:
12:30 Lunch
13:30 Visit to field site
16:00 Discussion with drinks
17:00 More drinks