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ST
Solar-Terrestrial Sciences

Assessing the impact of chlorine ions on solar proton event induced ozone loss

Assessing the impact of chlorine ions on solar proton event induced ozone loss

  Particle Precipitation High energy particles (e.g. electrons and protons) that precipitate at high latitudes can alter the chemical composition of the atmosphere by different photochemical reactions. This mainly happens due to primary collision processes and subsequent ion and neutral-chemistry reactions. Such reactions ordered by increasing energy are, for example, excitation, photo-dissociation, photo-ionization and dissociative …[Read More]

HS
Hydrological Sciences

Towards an exciting EGU General Assembly with HS (and more)

Towards an exciting EGU General Assembly with HS (and more)

The EGU Programme Committee convened in late October to finalize the scientific program for the upcoming General Assembly, GA2024. Their task involved organizing the numerous session proposals, spanning 22 divisions, including Inter- and Transdisciplinary (ITS) sessions, discussing the format of scientific sessions (do expect news for virtual posters and PICOs at GA2024!), the mentoring programme, …[Read More]

CR
Cryospheric Sciences

A ‘Ticking Bomb’: Understanding the 2023 Glacial Lake Outburst Flood (GLOF) in Sikkim Himalaya

Two photos of a glacial lake, on the left in 2022 and on the right in 2013, visually smaller.

  In this week’s blog post, Dr. Remya S N and Dr. Vishnu Nandan talk about how optical and radar satellite images were used to characterize the very recent catastrophic Glacial Lake Outburst Flood (GLOF) from the South Lhonak Lake in the Indian Himalaya before and after the flooding and highlight the importance of timely …[Read More]

G
Geodesy

Geodetic reference frames – Why do we need them?

Geodetic reference frames – Why do we need them?

  A geodetic reference frame provides the foundation for determining positions on Earth and in space, as well as for reliably quantifying our planet’s changes due to geodynamic processes and ongoing climate change. The ITRF ensures a uniform basis to tackle current and future challenges, including a wide range of location-based applications (navigation, traffic and …[Read More]

GM
Geomorphology

A Day in the Life – Riccardo Reitano

A Day in the Life – Riccardo Reitano

This blog post is part of our series: “A day in the life of a geomorphologist” for which we’re accepting contributions! Please contact one of the GM blog editors, Emily or Emma, if you’d like to contribute on this topic, or others.  by Riccardo Reitano, PostDoc Researcher, University of Rome “Roma Tre”    Email: riccardo.reitano@uniroma3.it …[Read More]