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J. Sakari Salonen Profile
J. Sakari Salonen

@js_salonen

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Following
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Paleoclimate scientist, Academy of Finland research fellow, Docent at Univ. of Helsinki. Side gig as non-fiction author ("Viisi maailmanloppua", Gaudeamus 2021)

Helsinki, Finland
Joined February 2016
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@js_salonen
J. Sakari Salonen
8 months
At American Geophysical Union conference in Washington DC with @GeoHelsinkiUni colleagues PhD student Liva Trasune, master student Elli Kiiski, and Dr. @FrederikSchenk (who took the picture). Joined by Dr. Sebastian Wagner of the Helmholtz Centre. #ArcticAvenue @SuomenAkatemia
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@js_salonen
J. Sakari Salonen
8 months
RT @FrederikSchenk: @BolinCentre @Stockholm_Uni @GeoHelsinkiUni @HallbergPetter @js_salonen Our PhD student presents her work using paleo-c….
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@js_salonen
J. Sakari Salonen
10 months
RT @Tietokirjailija: "Tutkittu tieto on kaiken tekemisen selkänoja", sanoi @luontomies Voiko maailma pelastua tutkimuksen avulla? -keskuste….
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@js_salonen
J. Sakari Salonen
10 months
RT @Tietokirjailija: Mitkä ovat tieteen mahdollisuudet maailman pelastamisessa? Tutkitun tiedon merkityksestä puhuvat @JarvenpaaMarja, Juha….
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@js_salonen
J. Sakari Salonen
1 year
We have a new paper out, discussing a fascinating fossil and ancient DNA record from the Värriö strict reserve in NE Finland. Interesting early-Holocene climate shifts and vegetation development! @NiinaKuosmanen @FrederikSchenk @PalaeoPete and many others.
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@js_salonen
J. Sakari Salonen
1 year
This is the stuff I stay on Twitter for.
@KiribatiGov
Republic of Kiribati
1 year
Fine. You're not invited.
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@js_salonen
J. Sakari Salonen
1 year
Kollegani @FrederikSchenk taustoittaa viime viikon AMOC/Golf virta -uutista. Kuten usein käy, sinänsä laadukkaan tutkimuksen uutisoinnissa on vähän mennyt mutkia suoraksi. Kiinnostavaa sinänsä, että simulaatio saa AMOCin sammumaan, mutta ei kerro miten lähellä tilannetta ollaan.
@FrederikSchenk
Frederik Schenk
1 year
"Warnings that the #Gulfstream might be on a pathway to collapse - with extreme cooling in Sweden - are now being criticized by several of Sweden's leading experts in the field." #SVT1. So what is this criticism of a new #AMOC collapse study about? 1/x.
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@js_salonen
J. Sakari Salonen
2 years
10/10: In addition, the rainfall pattern is Mediterranean, with the driest summer month below 40 mm and with less than 3x the precipitation of the wettest month (the "s"). I suspect this is because the orientation of the mountains blocks the rains during summers, but not winters.
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@js_salonen
J. Sakari Salonen
2 years
9/10: These Norway locales are extreme edge cases of what we conventionally call as "Mediterranean": the temperature of the coldest month is just barely above 0ºC (the "C" of the "Csb") and the summers only narrowly classify as warm, with four or more months above 10ºC (the "b").
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@js_salonen
J. Sakari Salonen
2 years
8/10: The real lesson here is perhaps that the Köppen classifications are necessarily quite broad to represent the global diversity of seasonal temperature and precipitation in 30 classes. Despite the same classification, these locales are quite different from Porto or Cape Town.
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@js_salonen
J. Sakari Salonen
2 years
7/10: In street view: the Amla "Mediterranean" grid cell, appropriately basking under the relentless Norwegian sun in this September 2022 photo.
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@js_salonen
J. Sakari Salonen
2 years
6/10: This grid cell is located quite deep inland on the shore of Sognefjord, the largest fjord in Norway, at the eastern terminus of the Amla tunnel.
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@js_salonen
J. Sakari Salonen
2 years
5/10: Second locale at 61.162N, 7.338E, with a single one-kilometre grid cell with Csb climate.
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@js_salonen
J. Sakari Salonen
2 years
4/10: In street view: the far shore of the lake is "Mediterranean". A prime spot for a vineyard or a citrus grove, perhaps?
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@js_salonen
J. Sakari Salonen
2 years
3/10: These grid cells are located along a 10-kilometre stretch at the western shore of the lake Eikesdalsvatnet, near Molde.
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@js_salonen
J. Sakari Salonen
2 years
2/10: First locale at 62.562N, 8.154E, with a total of 14 one-kilometre grid cells with Csb climate.
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@js_salonen
J. Sakari Salonen
2 years
1/10: I was looking at the Beck et al. (2018) ( climate dataset, and came across an amusing curiosity: two tiny spots in Norway with a "Mediterranean" (Köppen Csb) climate. Both places have Google street views, so pack your sunscreen and let's have a look:.
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nature.com
Scientific Data - Present and future Köppen-Geiger climate classification maps at 1-km resolution
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@js_salonen
J. Sakari Salonen
2 years
2/2 Fossiiliaineiston perusteella Eem-kauden metsät olivat yllättävänkin avointa mosaiikia, kenties koska ilman Homo sapiensia Euroopassa oli enemmän suuria kasvinsyöjänisäkkäitä. Kiinnostava yhteys myös nykyhetkeen: voi selittää miksi monet lajit viihtyvät avoimilla paikoilla.
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@js_salonen
J. Sakari Salonen
2 years
1/2 Tänään julkaistu kiehtova tutkimus siitä, minkälaista Euroopan luonnontilainen ympäristö olisi. Menetelmänä rekonstruoida kasvillisuuden rakenne Eem-kaudella, ennen nykyihmisen saapumista. Vetämässä @elena_pearce ja aineistona mukana myös Lapin Sokli.
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