Flavien Petit

Research Scientist, NOC Southampton, interested in global scale phytoplankton community composition measurements 🔬🌍🦠
Also surf addict 🌊

[Flavien Petit @flav_petit]

Our new paper is out ! 📊 We investigated the influence of phytoplankton community composition on the fluorescence signal and the implications for a better estimation of Chla concentration from BGC-Argo floats. 1/4 https://t.co/0N2nB4VeKA

[Mark Tenenholtz @marktenenholtz]

XGBoost 2.0 is here 🎉

What’s new:

• Multi-target trees
• Better memory efficiency
• Support for larger-than-memory datasets with memory mapping
• Learning to rank objectives
• Quantile regression
• PySpark integration
• Now checks for inf and not just NaN

This is a HUGE release!

[Collectif Citoyen 06 @CollecCitoyen06]

Quelle hypocrisie @cestrosi votre soit disant sommet pour le #Climat !!
Il est financé par Total, le Crédit Agricole, l'aéroport de Nice ... qui font partie des plus gros émetteurs de CO2.
#Greenwashing #Nice

[fabien lombard @fabien_lombard]

Today get out the results of a 7 years marathon around the Tara Pacific expedition. In a collection of 8 papers (https://t.co/Rj8kqjF2YF) and more to come.

[CO2_Earth @CO2_earth]

🏆🏆 NEW daily #CO2 RECORD HIGH for Humankind 🏆🏆 424.30 ppm at Mauna Loa Apr 15 2023 😰 Humanity's 5th daily record at Mauna Loa in 10 days! 😰 Up 3.73 from 420.47 a year ago 😰 @NOAA data: https://t.co/nu6ktMn2wU 🌍 https://t.co/DpFGQoYEwb records: https://t.co/YU3HoKfp4a 🌍

[Marin Cornec @MarinCornec]

Glad to see our papers on DCMs distribution, #TopCited, and on their response to eddies, #TopDownloaded!
👀
https://t.co/0SdZpXV5yz
https://t.co/hgzqIazJjB

Thanks @HClaustre for coordinating this PhD work at @LovLabo, @SabOceano & R. Laxenaire, and all collaborators!
#BGCArgo

[ERC REFINE @ERC_REFINE]

Yesterday, 2⃣ REFINE #ProfilingFloats have been deployed from the #MarionDufresne🚢 in the iron-limited area, southwest of the #Kerguelen plateau. We are looking forward to discovering the #data obtained by their underwater imagers from the Southern Ocean🤩

[Albert Rapp @rappa753]

'Tis the season to be sharing R treats:

The curly-curly operator is a great way to use a data set's column names in your own functions. #rstats

[Nihilist Data Scientist @nihilist_ds]

Well done, ChatGPT, well done. #datascience #rstats #pydata

[Ethan Mollick @emollick]

A barrier to replication: scientists have bad coding practice.

74% of R files included with papers & replication datasets failed to execute, but about a third of those could be fixed with simple code changes. Physicists were the worst offenders. https://t.co/Bjy0jAeufR

[Nikki Siapno @NikkiSiapno]

Git Workflow 👇

[MarcosFontela @MarcosFontela]

~25% of carbon assimilated by 𝘗𝘳𝘰𝘤𝘩𝘭𝘰𝘳𝘰𝘤𝘰𝘤𝘤𝘶𝘴 comes from dissolved organic carbon (DOC). 💣💣💣

This cyanobacterium is likely the most abundant "photosynthetic" organism on Earth 😮😮😮

[Euro-Argo ERIC @EuroArgoERIC]

📄👏🌊READ OF THE MONTH
Discover how phytoplankton communities composition plays a key role in the relationship between the in-situ fluorescence signal and Chla concentration thanks to this study relying on three datasets of #BGCArgo floats.

https://t.co/XxUlYI69vP

[Euro-Argo ERIC @EuroArgoERIC]

🗺️✌️More than 100 participants from about 15 countries!
The #ASW7 won its bet to gather ocean scientists from all over the world to improve our knowledge of the changing ocean.

#Argofloats #EARISE #EuroSea #H2020 #UNDecadeofOceanScience #CLIVAR

[Flavien Petit @flav_petit]

A team work effort w/ @juliauitz @HClaustre @CSchmechtig @antoine_poteau and the @Lov_OMTAB team 4/4

[Flavien Petit @flav_petit]

Our new paper is out ! 📊 We investigated the influence of phytoplankton community composition on the fluorescence signal and the implications for a better estimation of Chla concentration from BGC-Argo floats. 1/4 https://t.co/0N2nB4VeKA

[Flavien Petit @flav_petit]

Taking account of the phytoplankton community composition in the conversion of the fluorescence signal into Chla concentration may help us to better constrain Chla concentration estimation from BGC-Argo floats fluorometer ✅ 3/4

[David Ho @_david_ho_]

Admin freaks out every time I submit a bike share receipt for $5, but have no issues with $50 for taxis and $100 for rental cars because they see biking as recreation. We need to normalize micromobility as transportation.

[Appsilon @appsilon]

🐍After 10 years, the #R-exclusive #Shiny web framework is now available for #Python users. Check out our detailed introduction how to install and configure Shiny in Python and make your first, custom Shiny for Python dashboard! #rstats #rshiny #pyshiny 👉https://t.co/CiK1TP7fDO