The 19th BSRN Review and Workshop will take place at:
Sirta Palaiseau Main Office
École Polytechnique,
Avenue Le Chatelier LMD,
91120 Palaiseau
France
To book your accommodation, you can either contact the hotels below, or use one of your own preferred accommodation booking method.
Aparthotel Adagio Access Palaiseau Saclay
6 Boulevard Gaspard Monge,
91120 Palaiseau
(Walking distance from the École Polytechnique)
Aparthotel Adagio Access Paris Massy Gare
2A Place de l’Union Européenne
91300 Massy
(From Massy-Palaiseau station take bus 4606)
All Suites Appart Hôtel Massy Palaiseau
25 Avenue des Alliés,
91120 Palaiseau
(From Massy-Palaiseau station take bus 4606)
B&B HOTEL Massy Gare TGV
3 Rue Galvani
91300 Massy
(From Massy-Palaiseau station take bus 4606)
Getting to Palaiseau by air
The closest airports to Palaiseau are the two international airports in Paris.
Paris Orly Airport (ORY) is the closest airport to Palaiseau, with a travel time of about 22 minutes by car or taxi.
From Paris Charles de Gaulle Airport (CDG) it takes about 1 hour and 6 minutes to travel to Palaiseau by RER train.
The latest information on travel formalities and documents to Paris by air can be found here.
France is part of the Schengen Area. Residents of certain countries must apply for a visa in their home country before entering France. With the Visa Wizard you can easily check whether this applies to you or not. Click here to acces the Visa Wizard.
Pharmacies can be identified by a Green Cross.
Medical emergency: dial 15
Police: dial 17
Fire department (fires, accidents, emergency): dial 18
As in any large city, be aware of situations where pickpockets may be a problem, especially in crowded places like some of the major subway stations. In general, Paris is a safe city.
The Agenda will be available in the second half of May 2026.
The 19th Baseline Surface Radiation Network (BSRN) Scientific Review and Workshop is hosted by Site Instrumental de Recherche par Télédétection Atmosphérique (SIRTA) Atmospheric Research Observatory in Palaiseau, France and will take place from 22–26 June 2026.
BSRN is a project of the GEWEX Data and Analysis Panel (GDAP) and as such is aimed at detecting important changes in the Earth’s radiation field at the Earth’s surface which may be related to climate changes.
The objective of the BSRN is to provide observations of the best possible quality for short- and long-wave surface radiation fluxes with a high sampling rate. These readings are taken from a small number of selected stations (see station maps), in contrasting climatic zones, together with collocated surface and upper air meteorological data and other supporting observations.
The uniform and consistent measurements throughout the BSRN network are used to:
The 19th BSRN Review and Workshop aims to report on the status of the network and review the most recent scientific achievements and technical activities related to BSRN world.
The Agenda will be available in the second half of May 2026 and can be accessed at https://www.gewexevents.org/meetings/bsrn2026/agenda/.
19th BSRN Review and Workshop is by invitation only. If you have received an invitation and you want to participate either in-person or remotely, please register at https://www.gewexevents.org/meetings/bsrn2026/registration/.
The 19th BSRN Review and Workshop will take place at:
Sirta Palaiseau Main Office
École Polytechnique,
Avenue Le Chatelier LMD,
91120 Palaiseau
France
Visa
France is part of the Schengen area. Residents of certain countries must apply for a visa in their home country before entering France. With the Visa Wizard you can easily check whether this applies to you or not. Click here to access the Visa Wizard.
Visit Venue & Travel for additional information about traveling to Paris and Palaiseau.
Background image courtesy of NASA’s Scientific Visualization Studio – Marit Jentoft-Nilsen, Global Science and Technology, Inc./Amy Moran, Global Science and Technology, Inc./Heather Hanson – CERES Radiation Fluxes (SVS30604 – ceres net all 201504)
The 2026 GHP Meeting will take place at:
Universidad de Antioquia
Cl. 67 #53-108, Aranjuez,
Medellín, Antioquia
Colombia
There are many types of accommodations in different price ranges in Medellín which are in the vicinity of the meeting venue. Please use your own preferred method to find and book your accommodation.
By Air
Medellin International Airport also known as Aeropuerto de Medellín José María Córdova International Airport (MDE) is de only airport in Medellín. Medellin city center is about 15 miles from the Airport.
The fastest way to get from Medellin Airport to the city is to book a private transfer or taxi beforehand. The prices for Medellín Airport transfers are set and already include tolls and tips. Duration is about 30 minutes and will cost around 35–80 USD. You can make a reservation for either at https://mdeairport.com/airport-transportation/. Uber is also available at Medellín Airport and can be booked through the Uber app.
Traveling from the airport to the city by bus is also possible. You can find more information about the bus route and schedule at https://combusessa.com/rutas/. Transfer time takes up to 60 minutes and costs are 5–10 USD. For additional information and frequently asked questions visit the blog page.
By Land
Buses are a common and efficient way to reach Medellín if you are traveling from other Colombian cities. Colombia’s bus network is extensive and well-developed, linking major cities, small communities and popular tourist sites. You will arrive at one of the city’s main bus terminals. Some long-distance inter-city bus companies are well-known companies Expreso Bolivariano, Expreso Brasilia, Flota Magdalena and Rapido Ochoa.
Getting around Medellín
Getting around Medellín is made easy by using the Medellin Metro System, which is made up of trains, aerial cables, buses and a tram. Details about all the lines, connections, routes, schedules, prices and services can be found at https://www.metrodemedellin.gov.co/en/users/integrated-system.
Cívica, the Contactless Smart Card (CSD), allows you to store money to pay for your trips on the METRO, the Cables, the Buses of Lines O, 1 and 2, the Feeder routes of Cuencas 3, 6 and 7, on the Ayacucho tram and on the routes integrated to the System. For more information visit https://www.metrodemedellin.gov.co/en/users/how-to-travel-in-the-medellin-metro.
Colombia grants visa exemption to 102 specified nationalities and territories for short-stay travel under the Visitor (V) category, permitting stays of up to 90 days without a visa. Eligible passport holders may enter without authorization. Consult the list of exempt nationalities and territories for confirmation. Travelers holding passports from other countries should review the requirements and application process for a short-stay Visitor visa to ensure compliance before traveling to Colombia.
For any emergency, whether you need police, ambulance or firefighters, call 123.
If you need a pharmacy, you will find 24/7 options. Drug stores such as La Rebaja and Pasteur are in different parts of the city. In addition, some hospitals have emergency pharmacies open all the time.
Medellín is the capital of Colombia’s mountainous Antioquia department and the country’s second-largest city. Known as the City of Eternal Spring for its mild, year-round climate, it sits in the Aburrá Valley at roughly 1,500 meters above sea level. As any major city it offers visitors many things to discover. Cultural highlights include the Museo de Antioquia, Botero Plaza, and theaters. Visitors find green spaces such as Arví Park and the Botanical Garden, alongside vibrant neighborhoods with notable murals and cafés.
Visit https://www.medellin.travel/?lang=en and/or https://www.visitmedellin.co/ for ideas and useful information.
Image banner (left to right) courtesy of: Alonso Cárdenas – Medellín Parque de Luz, Bernard Gagnon – Graffiti in Comuna 13, Medellín, Hey ho, let’s go – Fuente de la Universidad de Antioquia, Zarateman – Medellín, un viaje en el tiempo 2, SajoR – Madre Monte obra de Jose Horacio Betancur
