Pocket-titan/jelmar

F5OEO/rpitx

ocornut/imgui

F1bonacc1/process-compose

ClusterM/flipper_rc

veeresht/CommPy

🎉 Excited to share our new paper and the open-source Python package, HyperGas! HyperGas provides a consistent and transparent system for quantifying facility-level greenhouse gas emissions using hyperspectral observations. 🌈 Key features: 1️⃣ Read Level-1 radiance data from hyperspectral satellite imagers, including EnMAP, EMIT, and PRISMA, and other three-dimensional hyperspectral datasets. 2️⃣ Retrieve, denoise, and automatically mask trace gas enhancements such as&nbsp;methane and carbon dioxide. 3️⃣ Process data in batch mode or explore plumes interactively through a graphical user interface. 4️⃣ Estimate plume emission rates using multiple methods (including IME and CSF), which have been validated against controlled releases. 🌍 We hope HyperGas will be useful for the atmospheric remote sensing community. Contributions, feedback, and feature requests are always welcome! Many thanks to all my collaborators for making this work possible! <a tabindex="0" href="https://www.linkedin.com/in/jdmaasakkers/" id="ember111" class="ember-view">J.D. (Bram) Maasakkers</a>, <a tabindex="0" href="https://www.linkedin.com/in/tobias-a-de-jong/" id="ember112" class="ember-view">Tobias Arie de Jong</a>, Paul Tol, <a tabindex="0" href="https://www.linkedin.com/in/frances-reuland/" id="ember113" class="ember-view">Frances Reuland</a>, <a tabindex="0" href="https://www.linkedin.com/in/adamrbrandt/" id="ember114" class="ember-view">Adam Brandt</a>, Eric A. Kort, <a tabindex="0" href="https://www.linkedin.com/in/taylor-adams-85438790/" id="ember115" class="ember-view">Taylor Adams</a>, <a tabindex="0" href="https://www.linkedin.com/in/ilse-aben-95a099223/" id="ember116" class="ember-view">Ilse Aben</a> 📄 Paper: <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" target="_self" tabindex="0" href="https://lnkd.in/e_nGziaW" data-test-app-aware-link="">https://lnkd.in/e_nGziaW</a> 📚&nbsp;Documentation: <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" target="_self" tabindex="0" href="https://lnkd.in/enXqbd66" data-test-app-aware-link="">https://lnkd.in/enXqbd66</a> 🗞️ News: <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" target="_self" tabindex="0" href="https://lnkd.in/e3tKY_CV" data-test-app-aware-link="">https://lnkd.in/e3tKY_CV</a> <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23sron&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#SRON</a> <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23gmh&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#GMH</a> <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23hyperspectral&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#Hyperspectral</a> <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23satellite&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#Satellite</a> <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23remotesensing&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#RemoteSensing</a> <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23greenhousegas&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#GreenhouseGas</a> <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23methane&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#Methane</a> <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23carbondioxide&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#CarbonDioxide</a> <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23emit&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#EMIT</a> <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23enmap&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#EnMAP</a> <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23prisma&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#PRISMA</a> <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23python&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#Python</a> <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23opensource&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#OpenSource</a>

Jelmar Gerritsen

🎉 Excited to share our new paper and the open-source Python package, HyperGas! HyperGas provides a consistent and transparent system for quantifying facility-level greenhouse gas emissions using hyperspectral observations.🌈 Key features:1️⃣ Read Level-1 radiance data from hyperspectral satellite imagers, including EnMAP, EMIT, and PRISMA, and other three-dimensional hyperspectral datasets.2️⃣ Retrieve, denoise, and automatically mask trace gas enhancements such as methane and carbon dioxide.3️⃣ Process data in batch mode or explore plumes interactively through a graphical user interface.4️⃣ Estimate plume emission rates using multiple methods (including IME and CSF), which have been validated against controlled releases.🌍 We hope HyperGas will be useful for the atmospheric remote sensing community. Contributions, feedback, and feature requests are always welcome!Many thanks to all my collaborators for making this work possible!J.D. (Bram) Maasakkers, Tobias Arie de Jong, Paul Tol, Frances Reuland, Adam Brandt, Eric A. Kort, Taylor Adams, Ilse Aben📄 Paper: https://lnkd.in/e_nGziaW📚 Documentation: https://lnkd.in/enXqbd66🗞️ News: https://lnkd.in/e3tKY_CVhashtag#SRON hashtag#GMH hashtag#Hyperspectral hashtag#Satellite hashtag#RemoteSensing hashtag#GreenhouseGas hashtag#Methane hashtag#CarbonDioxide hashtag#EMIT hashtag#EnMAP hashtag#PRISMA hashtag#Python hashtag#OpenSource

Sign the petition to keep TROPOMI Sentinel-5 Precursor going ! <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" target="_self" tabindex="0" href="https://lnkd.in/dCqTga5U" data-test-app-aware-link="">https://lnkd.in/dCqTga5U</a> And share in your network

Sign the petition to keep TROPOMI Sentinel-5 Precursor going ! https://lnkd.in/dCqTga5UAnd share in your network

At <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" target="_self" tabindex="0" href="https://www.linkedin.com/company/waving-ai/" data-test-app-aware-link="">Waving</a> we continue to rapidly grow our great tech team, with <a tabindex="0" href="https://www.linkedin.com/in/jelmargerritsen/" id="ember183" class="ember-view">Jelmar Gerritsen</a> joining us and already making a difference. Jelmar is a MSc graduate from <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" target="_self" tabindex="0" href="https://www.linkedin.com/company/tu-delft-aerospace-engineering/" data-test-app-aware-link="">TU Delft | Aerospace Engineering</a> and has an already impressive CV with a for <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" target="_self" tabindex="0" href="https://www.linkedin.com/company/waving-ai/" data-test-app-aware-link="">Waving</a> perfect combination of <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23ai&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#AI</a> / <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23machinelearning&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#MachineLearning</a> and <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23remotesensing&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#RemoteSensing</a> expertise, and having contributed to <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" target="_self" tabindex="0" href="https://www.linkedin.com/company/sron/" data-test-app-aware-link="">SRON Space Research Organisation Netherlands</a> and <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23iac2024&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#IAC2024</a>. Welcome aboard <a tabindex="0" href="https://www.linkedin.com/in/jelmargerritsen/" id="ember184" class="ember-view">Jelmar Gerritsen</a>! If you are interested in Waving or joining, do reach out to any of our team and we’ll be happy to tell you more. <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23security&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#Security</a> <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23criticalinfrastructure&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#CriticalInfrastructure</a> <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23remotesensing&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#RemoteSensing</a> <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23machinelearning&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#MachineLearning</a>

At Waving we continue to rapidly grow our great tech team, with Jelmar Gerritsen joining us and already making a difference. Jelmar is a MSc graduate from TU Delft | Aerospace Engineering and has an already impressive CV with a for Waving perfect combination of hashtag#AI / hashtag#MachineLearning and hashtag#RemoteSensing expertise, and having contributed to SRON Space Research Organisation Netherlands and hashtag#IAC2024. Welcome aboard Jelmar Gerritsen!If you are interested in Waving or joining, do reach out to any of our team and we’ll be happy to tell you more.hashtag#Security hashtag#CriticalInfrastructure hashtag#RemoteSensing hashtag#MachineLearning

Very happy to announce that I have graduated from <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" target="_self" tabindex="0" href="https://www.linkedin.com/company/tu-delft-aerospace-engineering/" data-test-app-aware-link="">TU Delft | Aerospace Engineering</a>! I successfully defended my MSc thesis titled "Generalized multi-band methane enhancement retrievals using PACE-OCI", in which I developed a new retrieval algorithm for multispectral methane enhancement retrievals and applied it to OCI, the main instrument aboard the PACE satellite. I'm hugely thankful to the people at <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" target="_self" tabindex="0" href="https://www.linkedin.com/company/sron/" data-test-app-aware-link="">SRON Space Research Organisation Netherlands</a> who helped me get here - in particular my supervisors <a tabindex="0" href="https://www.linkedin.com/in/tobias-a-de-jong/" id="ember216" class="ember-view">Tobias Arie de Jong</a> and <a tabindex="0" href="https://www.linkedin.com/in/jdmaasakkers/" id="ember217" class="ember-view">J.D. (Bram) Maasakkers</a>. Now on to the next challenge 🚀

Very happy to announce that I have graduated from TU Delft | Aerospace Engineering! I successfully defended my MSc thesis titled "Generalized multi-band methane enhancement retrievals using PACE-OCI", in which I developed a new retrieval algorithm for multispectral methane enhancement retrievals and applied it to OCI, the main instrument aboard the PACE satellite.I'm hugely thankful to the people at SRON Space Research Organisation Netherlands who helped me get here - in particular my supervisors Tobias Arie de Jong and J.D. (Bram) Maasakkers.Now on to the next challenge 🚀

A little (late) update: back in January, I wrapped up my internship at <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" target="_self" tabindex="0" href="https://www.linkedin.com/company/sron/" data-test-app-aware-link="">SRON Space Research Organisation Netherlands</a>. I had a great time and learned a lot about Earth observation and atmospheric modeling. My work focused on comparing fire emissions datasets by using them as priors in the TM5 chemical transport model, and evaluating the results against TROPOMI CO satellite observations. To visualize the large number of generated plots (~5000), I wrote a simple interactive tool. Being able to quickly jump between and cross-compare results is in my opinion a big benefit and makes it way easier to find interesting patterns and formulate hypotheses. Some of my findings: -🔥 Extreme fires like the 2020 California and 2019–2020 Australia wildfires were underestimated across all inventories - ⌚ Australia, Europe, and Boreal Asia showed two fire seasons (a smaller one in spring and a main one in summer); while South America and South Africa experienced extended fire seasons - 📊 The bottom-up GFED5 inventory performed best overall, while the top-down FINN2.5 often overestimated emissions—likely affected by how both handle small fires For my full results, you can read my report on my page or just shoot me a message 📩 I'm also happy to say I'm staying on as a thesis student at SRON! I'll be focusing on methane plume observations from space 🛰️

A little (late) update: back in January, I wrapped up my internship at SRON Space Research Organisation Netherlands. I had a great time and learned a lot about Earth observation and atmospheric modeling. My work focused on comparing fire emissions datasets by using them as priors in the TM5 chemical transport model, and evaluating the results against TROPOMI CO satellite observations.To visualize the large number of generated plots (~5000), I wrote a simple interactive tool. Being able to quickly jump between and cross-compare results is in my opinion a big benefit and makes it way easier to find interesting patterns and formulate hypotheses.Some of my findings:-🔥 Extreme fires like the 2020 California and 2019–2020 Australia wildfires were underestimated across all inventories- ⌚ Australia, Europe, and Boreal Asia showed two fire seasons (a smaller one in spring and a main one in summer); while South America and South Africa experienced extended fire seasons- 📊 The bottom-up GFED5 inventory performed best overall, while the top-down FINN2.5 often overestimated emissions—likely affected by how both handle small firesFor my full results, you can read my report on my page or just shoot me a message 📩I'm also happy to say I'm staying on as a thesis student at SRON! I'll be focusing on methane plume observations from space 🛰️

It was a busy week at the <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" tabindex="0" href="https://www.linkedin.com/search/results/all/?keywords=%23iac2024&amp;origin=HASH_TAG_FROM_FEED" data-test-app-aware-link="">hashtag#IAC2024</a> in Milan! I'm very grateful for getting the chance to present my work, and for the new friends and connections I made. Hope to see you all at the next one, and here's to the future 🚀

It was a busy week at the hashtag#IAC2024 in Milan! I'm very grateful for getting the chance to present my work, and for the new friends and connections I made. Hope to see you all at the next one, and here's to the future 🚀

3 weeks ago I started my new position at SRON as an earth science intern working on fire emissions 🎉. To get a grasp of the datasets I'm using, I like to visualise things - these are global CO fire emissions during the year 2018. It's truly mind-boggling to see the amount of fires in both Southern Africa and South America. While many of these fires are lit by humans for land management purposes, climate change is contributing to drier environments where fires can both occur and spread more easily.

3 weeks ago I started my new position at SRON as an earth science intern working on fire emissions 🎉. To get a grasp of the datasets I'm using, I like to visualise things - these are global CO fire emissions during the year 2018. It's truly mind-boggling to see the amount of fires in both Southern Africa and South America. While many of these fires are lit by humans for land management purposes, climate change is contributing to drier environments where fires can both occur and spread more easily.

🎉 After months of hard work, my new personal website over at <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" target="_self" tabindex="0" href="https://jelmar.eu/" data-test-app-aware-link="">https://jelmar.eu</a> is finally live! To celebrate, I've written a small blog post on ice sheets and how we use computers to model them. You can read it here: <a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" target="_self" tabindex="0" href="https://lnkd.in/e_xSnSb9" data-test-app-aware-link="">https://lnkd.in/e_xSnSb9</a>.

🎉 After months of hard work, my new personal website over at https://jelmar.eu is finally live! To celebrate, I've written a small blog post on ice sheets and how we use computers to model them. You can read it here: https://lnkd.in/e_xSnSb9.

I just published Apygee, a small Python package for working with and making sense of Kepler orbits. Check it out on GitHub (<a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" target="_self" tabindex="0" href="https://lnkd.in/eZfQSswy" data-test-app-aware-link="">https://lnkd.in/eZfQSswy</a>) or PyPi (<a class="BJEbSaIJBPeWfhLqLplZbvbHLceVASpzKHENE" target="_self" tabindex="0" href="https://lnkd.in/en79NBeP" data-test-app-aware-link="">https://lnkd.in/en79NBeP</a>)!

I just published Apygee, a small Python package for working with and making sense of Kepler orbits. Check it out on GitHub (https://lnkd.in/eZfQSswy) or PyPi (https://lnkd.in/en79NBeP)!

🥳It's official! Very happy to announce that our paper "𝘕𝘖𝘔𝘈𝘋: 𝘕𝘦𝘱𝘵𝘶𝘯𝘦 𝘖𝘳𝘣𝘪𝘵𝘦𝘳 𝘔𝘪𝘴𝘴𝘪𝘰𝘯 𝘧𝘰𝘳 𝘈𝘶𝘳𝘰𝘳𝘢𝘭 𝘋𝘦𝘵𝘦𝘤𝘵𝘪𝘰𝘯" got accepted for presentation at the IAC 2024 in Milan. We'll be speaking on the 17th of October in the 15:00 session on solar system exploration including ocean worlds. If you're there, come say hi to <a tabindex="0" href="https://www.linkedin.com/in/danny-tio/" id="ember419" class="ember-view">Danny Tjokrosetio</a> and me!

🥳It's official! Very happy to announce that our paper "𝘕𝘖𝘔𝘈𝘋: 𝘕𝘦𝘱𝘵𝘶𝘯𝘦 𝘖𝘳𝘣𝘪𝘵𝘦𝘳 𝘔𝘪𝘴𝘴𝘪𝘰𝘯 𝘧𝘰𝘳 𝘈𝘶𝘳𝘰𝘳𝘢𝘭 𝘋𝘦𝘵𝘦𝘤𝘵𝘪𝘰𝘯" got accepted for presentation at the IAC 2024 in Milan. We'll be speaking on the 17th of October in the 15:00 session on solar system exploration including ocean worlds. If you're there, come say hi to Danny Tjokrosetio and me!

hi!

GitHub activity

LinkedIn activity