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Hellmann number - Meteorology The Netherlands codl index The Netherlands in freezing conditions

The Hellmann Number – A Dutch Cold Index by a German Meteorologist

The Hellmann number (H) is a cold index mainly used in The Netherlands and Germany. It is a measure of ...
The warmest year on record looked like this. Climate figure of the Day January

Climate Figure of the Day, January ’24

Also in 2024, we continue with our “Climate Figure of the Day” series! Every day, I’ll be sharing a climate ...
Climate barcode - record warm - record wet - the Netherlands 2023

2023: The Netherlands’ Warmest and Wettest Year on Record

2023 began in a way that perfectly foreshadowed the rest of the year. On the very first temperature measurement of ...
Snow Storm Helsinki - Blizzard Helsinki December 2022 - December Storm Helsinki

Blizzard Followed by Gulf-Effect Snow Brings 45 cm of Snow to Helsinki in December

The 12 and 13th of December 2022 were two very extreme weather days in Helsinki. The first day a true ...
Schematic overview, factors of sea-effect-snow Schematic overview, factors of sea-effect-snow Taru Olsson

Sea-Effect and Lake-Effect Snow: What Is It and How Does It Form?

Sea-effect or lake-effect snow refers to convective snowfall which arises when a very cold air mass moves over a relatively ...
Snow Probability on Christmas Day (climatology 1991-2020) -White Christmas in North America - Christmas Snow Chance in US, Canada, Mexico

Chances of a White Christmas in North America: Declining Snow Cover Trends on Christmas Day

Cities and landscapes blanketed in a white layer: snowy scenes give Christmas extra charm. But how often does this picture-perfect ...

Meteorology and Climate

Hellmann number - Meteorology The Netherlands codl index The Netherlands in freezing conditions

The Hellmann Number – A Dutch Cold Index by a German Meteorologist

The Hellmann number (H) is a cold index mainly used in The Netherlands and Germany. It is a measure of ...
The warmest year on record looked like this. Climate figure of the Day January

Climate Figure of the Day, January ’24

Also in 2024, we continue with our “Climate Figure of the Day” series! Every day, I’ll be sharing a climate ...
Climate barcode - record warm - record wet - the Netherlands 2023

2023: The Netherlands’ Warmest and Wettest Year on Record

2023 began in a way that perfectly foreshadowed the rest of the year. On the very first temperature measurement of ...
Snow Storm Helsinki - Blizzard Helsinki December 2022 - December Storm Helsinki

Blizzard Followed by Gulf-Effect Snow Brings 45 cm of Snow to Helsinki in December

The 12 and 13th of December 2022 were two very extreme weather days in Helsinki. The first day a true ...

Blog posts

Snow Storm Helsinki - Blizzard Helsinki December 2022 - December Storm Helsinki

Blizzard Followed by Gulf-Effect Snow Brings 45 cm of Snow to Helsinki in December

The 12 and 13th of December 2022 were two very extreme weather days in Helsinki. The first day a true ...
Arctic Snow School featured image - Daan van den Broek in a snow pit

Arctic Snow School in Iqaluktuuttiaq (Cambridge Bay): Unforgettable Fieldwork Experience in Canada’s Remote Arctic

From April 1st to April 8th, I had the privilege to participate in the Arctic Snow School, a joint initiative ...
Polar Low Svalbard - Satellite image - Polar Low Satellite

In the Middle of a Polar Low: Extreme Blizzard in Svalbard

Exactly one year ago, this meteorologist experienced one of the dreams that probably all meteorologist have: being in the middle ...
Aurora Borealis Helsinki

Northern Lights in Helsinki, 26th/27th of February

Since I have been living in Helsinki in August 2018, I have seen the northern lights, also known as aurora ...
Scientific Cruise UNIS Air Ice Sea Interactions Svalbard - Study at UNIS - Study in Svalbard

Experiences during master course Air-Ice-Sea Interactions at UNIS, Svalbard

In the fall of 2022, from October to December, I went to Svalbard to take part in the UNIS master ...
Light Pillars in wintertime

Light Pillars upon Arrival in Helsinki

On the 10th of January of 2022, I arrived back home in Finland after spending Christmas with my family. The ...
Sea Ice - Coldest first week of December Helsinki

Coldest start of December in Helsinki since 1937

After a (for my standards) cold fall and a very cold end of November, the winter stepped up its game ...

Hiking in Sipoonkorpi on a Beautiful Winter’s Day in March the Day After a Snow Storm

On the 10th of March 2021, a friend and I went hiking in Sipoonkorpi National Park. Despite it already being ...

Study

Arctic Snow School featured image - Daan van den Broek in a snow pit

Arctic Snow School in Iqaluktuuttiaq (Cambridge Bay): Unforgettable Fieldwork Experience in Canada’s Remote Arctic

From April 1st to April 8th, I had the privilege to participate in the Arctic Snow School, a joint initiative ...
Scientific Cruise UNIS Air Ice Sea Interactions Svalbard - Study at UNIS - Study in Svalbard

Experiences during master course Air-Ice-Sea Interactions at UNIS, Svalbard

In the fall of 2022, from October to December, I went to Svalbard to take part in the UNIS master ...
Letting up the weather balloon for the radio sounding for the course ATM322

Radio Sounding for Course Meteorological Observation Systems

As part of completing the course Meteorological Observation Systems (ATM322) at the University of Helsinki, we had to execute a ...

Book reviews

My world is melting book review - Line Nagell Ylvisåker My world is melting

My World is Melting – Book Review

At the end of my second exchange semester at UNIS, Svalbard, I purchased the book My World is Melting - ...
What if - Book review

What If by Randall Munroe – Book Review

This book is a must have for all scientists and other curious minds. What If? - Serious Answers to Absurd ...
The 5 AM Club - book review

The 5 AM Club – Book Review

Recently, I read the book The 5 AM Club: Own Your Morning, Elevate Your Life written by Robin Sharma. The ...
Surrounded By Idiots - book review

Surrounded by Idiots – Book Review

Last year I read the book Surrounded by Idiots, written by Thomas Erikson. Overall, the book was enjoyable to read ...

Finnish National Parks

Hiking in Sipoonkorpi on a Beautiful Winter’s Day in March the Day After a Snow Storm

On the 10th of March 2021, a friend and I went hiking in Sipoonkorpi National Park. Despite it already being ...
When exiting the park, the snow cover depth became deeper and deeper- Snowfall in Repovesi in December

Intense Snowfall in Repovesi National Park

On the 16th of December, Anna and I went to Repovesi National Park with a friend of ours. At the ...
Rocky wall and Haukalamppi lake

Nuuksio National Park in December

On the 13th of December 2020, I visited Nuuksio National Park with my girlfriend Anna and a friend. Nuuksio is ...
View over Lake Pielinen. Visiting Koli National Park

Visiting Koli National Park at the Start of Winter

After starting my studies in Helsinki in August 2020, in November that year it was finally time to explore my ...