Makan Karegar

Stunning sunrise over Nussallee where the Institute of Geodesy has stood for decades!

Take a Deep Breath? How Bad Air Affects Your Marathon Finish Time

Take a Deep Breath? How Bad Air Affects Your Marathon Finish Time www.nytimes.com/2025/11/01/c...

Volcano of the week

Climbing Through a PhD – Mental Health on the Way to the Summit Imagine you are going on a long mountain tour. Your backpack is heavy, the path is steep, and although you have been walking for hours, all you can see ahead of you is the next climb. Doing a PhD is l...

🧠 How are you, really?

Today is World Mental Health Day - a reminder that caring for your mind is important.

Kristin Vielberg and Hanna Sänger from PhDpositive reflect on the mental health challenges of doing a PhD and share ways to make the journey more sustainable, fulfilling, and balanced. 🌱

Volcanism is a unique feature of Auckland. Newly discovered hidden faults make things even more interesting. This is a picture I took last Aug of the 50 m deep crater of Mount Eden (erupted 28,000 yrs ago).

40yr trend in TWSA, red = drying (-up to 6mm/yr) blue = wetting (up to 6mm/yr)

Our PhD student Charlotte Hacker (@crc1502-detect.bsky.social @unibonn.bsky.social) published a 40yr record of total water storage anomalies (TWSA), similar to GRACE but from 1984 on. She combined SLR, DORIS and climate data in a new method.
zenodo.org/records/1582...
doi.org/10.22541/ess...

GNSS Hydrology is proposed to integrate GNSS hydrogeodesy and GNSS remote sensing. This framework provides a unified approach to studying the global hydrological cycle using GNSS technology.
Read more in our recent Letter in The Innovation: www.sciencedirect.com/science/arti...

Hydrological Loading session at EGU 2025 We had a session at EGU25 titled “Measuring and modelling solid-Earth deformation induced by changing loads from liquid and frozen water”, co-organized by the Geodesy (G) and Hydrological Sciences …

Are you organizing your #EGU25 notes? Maybe this summary of the hydrological loading session may help refresh your memory. hydrologicalloading.wordpress.com/2025/05/06/h...

#Train2EGU one hour left

South Africa’s land is rising due to severe drought and the loss of water stored in land.
Read more in the U of Bonn @unibonn.bsky.social press release: www.uni-bonn.de/en/news/071-...
and in our (@jurgenkusche.bsky.social) JGR: Solid Earth paper: agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Asian Megadeltas: Tackling Coastal Flooding Challenges - Eos Integrating scientific insights into current actions is crucial for steering future research directions and underpinning informed management of coastal flooding in Asian deltas.

Asian Megadeltas: Tackling Coastal Flooding Challenges #AGUPubs @agu.org

eos.org/editors-vox/...

doi.org/10.1029/2024...

Your #paper doesn’t mean much if you don’t share the data and #code to reproduce the results. I’ve stopped reviewing #manuscripts with no transparent and open data policy.

Spent a couple of days around the Marmara Sea Islands and it’s surprising how much the locals know about earthquake risks.

Fieldwork yesterday in Todenfeld! GNSS is out there running.