Hans Von Storch

Helmholtz-Zentrum Hereon | HZG · Institute for Coastal Systems

Several surveys around the world claim that the issue of climate change is of declining interest among the population. Hamburg, regularly experiencing storm surges and suffered a major flood in 1962, shows evidence of this tendency in yearly surveys undertaken from 2008 to 2011. Comparing detected trends in public awareness of climate change around...

A statistical strategy to deduct regional-scale features from climate general circulation model (GCM) simulations has been designed and tested. The main idea is to interrelate the characteristic patterns of observed simultaneous variations of regional climate parameters and of large-scale atmospheric flow using the canonical correlation technique....

The coastal zones are facing the prospect of changing storm surge statistics due to anthropogenic climate change. In the present study, we examine these prospects for the North Sea based on numerical modelling. The main tool is the barotropic tide-surge model TRIMGEO (Tidal Residual and Intertidal Mudflat Model) to derive storm surge climate and ex...

The "spectral nudging" method imposes time-variable large-scale atmospheric states on a regional atmospheric model. It is based on the idea that regional-scale climate statistics are conditioned by the interplay between continental-scale atmospheric conditions and such regional features as marginal seas and mountain ranges. Following this "downscal...

Over decades, large amounts of the neurotoxin lead were released into the European environment, mostly from gasoline lead additives. Emissions were growing unabatedly until the 1970s, when a series of regulations on the allowed gasoline lead content were adopted. As a result, in the 1990s most gasoline contained only small amounts of lead. We have...

The history of ideas is a key ingredient for understanding the knowledge generated and maintained by any science. In the case of western climate science this history is long has undergone various significant changes – beginning with climatic determinism, to physics of the atmosphere and oceans to a determinant of climate policies in recent times. T...

For ages, the topic of climate – in the sense of “usual weather” – has in the western tradition attracted attention as a possible explanatory factor for differences in societies and in human behavior. Climate, and its purported impact on society, is an integrated element in western thinking and perception. In this essay, the history of ideas about...

During an experiment-of-opportunity in July 2019, 27 drift bottles were released in the southern Baltic Sea. Ten of these bottles were found and reported at locations that were surprisingly widespread. In this study, we explore the chances to reproduce these findings with a numerical drift model. While trajectories may be considered as completely d...

We present a method to study the interannual variability of the annual cycle. The method consists of first determining the amplitude and phase of segments of 12 monthly means at all spatial points, resulting in one complex number per grid point and per year. The complex fields, once per year, are then subject to a complex EOF (CEOF) analysis. We co...

Since ages, the topic of climate – in the sense of “usual weather” – has in the western tradition attracted attention as a possible explanatory factor. Climate, and its purported impact on society, is an integrated element in western thinking and perception. In this lecture, the history of ideas about the climatic impact on humans and society, and...

Presents the oeuvre of Klaus Hasselmann, one of the leading figures of 20th century climate science This book is is open access which means you have free and unlimited access

The hydrodynamics of marginal seas exhibit internal variability unprovoked by external forcing. So far, the role of tides in reducing this “noise” has not been studied. We investigate the effect of tides on internal variability in the Bohai and Yellow Sea. To do so, we conducted three ensembles of numerical experiments using the Finite-Volume Coast...

Laudatio aus Anlaß der Ernennung zum Ehrenmitglied der Patriotischen Gesellschaft

Im Fokus der gesellschaftlichen Debatte in Deutschland und in anderen Ländern stehen, wie schon vor 20 oder mehr Jahren, Maßnahmen zur Minderung der nationalen Emission von Treibhausgasen. Dazu zählt nicht nur die Bepreisung des CO2-Ausstoßes, sondern auch die Auffors-tung unseres Baumbestands und die Förderung von erneuerbaren Ener-gien, die Wärme...

Good intentions by the middle class are not always well guided and do not always lead to measurable or significant results. For example, efforts to limit greenhouse gas emissions may hold broad appeal but can still have negligible impact. Therefore, it is suggested to embark on “Apollo projects”, which bundle the potential and willingness of the mi...

During his long career, Klaus Hasselmann has been a boss and teacher but also a colleague to many people. Therefore, we have asked quite a few of these people about how they remember their time with him.

See also https://pure.mpg.de/cone/persons/resource/persons37172?lang=en .

While Klaus Hasselmann began, as many theoretical physicists do, expecting to find a solution to the “turbulence problem” (whatever that is), he noticed that this would be a rather big challenge, and that it may also be good to tackle easier problems. And that is what he did before returning to the old dream when he retired, although he was not par...

Klaus Hasselmann was born in Hamburg in 1931. His family fled to England in 1934 because of the Nazis, so he grew up in an English-speaking environment, and returned to Hamburg after the war, where he studied physics, started a family, and became an innovative researcher. Later, he spent several years in the United States of America, but always ret...

In 2006, Hans von Storch and Dirk Olbers ran an interview with Klaus Hasselmann.

In a series of ad-hoc surveys at different academic institutions in the Baltic Sea region, students and young scholars were asked about their views about the environmental issues of the Baltic Sea, and who would be responsible for the management of the Baltic Sea. Overfishing, climate change and waste were considered the most significant issues, wh...

Coasts are those regions of the world where the land has an impact on the state of the sea, and that part of the land is in turn affected by the sea. This land–sea interaction may take various forms—geophysical, biological, chemical, sociocultural, and economic. Coasts are conditioned by specific regional conditions. These unique characteristics re...

Preprint: https://www.sciencedirect.com/science/article/pii/S0377026521000385 Abstract Inspired by the Charney-and-de Vore hypothesis, Hansen and Sutera in 1986 came forward with the claim of having detected a fingerprint of the presence of two preferred state in the tropospheric circulation at northern Hemisphere mid-latitudes. Shortly after, Nit...

In dem Projekt geht es um die Wahrnehmung und Bewertung des Klimawandels und der Klimapolitik unter Oberstufenschüler*innen in Hamburg, Bayern und Niedersachsen. Von Februar bis Juni 2021 wurden insgesamt 550 Schüler*nnen an sieben Schulen mithilfe einer standardisierten Online-Erhebung befragt. Die Datenerfassung erfolgte während des Unterrichts....

The lockdown of large parts of Chinese economy beginning in late January 2020 lead to significant regional changes of aerosol loads, which suggests a reduction of backscatter and consequently a regional warming in the following months. Using local data and a numerical experiment with a limited area model, we have examined how strong this response m...

Reproducibility of research results is a fundamental quality criterion in science; thus, computer architecture effects on simulation results must be determined. Here, we investigate whether an ensemble of runs of a regional climate model with the same code on different computer platforms generates the same sequences of similar and dissimilar weathe...

erschienen am 18. Januar in GLOBKULT https://www.globkult.de/blogs/hans-von-storch-zur-sache-klima/2008-klimawissen-ein-produkt-aus-dem-computer

6te Kolumne in der Reihe "Zur Sache Klima" in GlobKult https://www.globkult.de/blogs/hans-von-storch-zur-sache-klima/2000-retten-retten-ist-die-erste-buergerpflicht Nach"druck" auf https://publikum.net/retten-retten-ist-die-erste-burgerpflicht/ März 2021

13.te Kolumne in der Kleinen Zeitung

This study investigates the evolution of German Bight (southeastern North Sea) storminess from 1897 to 2018 through analysing upper quantiles of geo-strophic wind speeds, which act as a proxy for past storm activity. Here, geo-strophic wind speeds are calculated from triplets of mean sea level pressure observations that form triangles over the Germ...

3te Kolumne in der Serie "Zur Sache Klima" in Globult https://www.globkult.de/blogs/hans-von-storch-zur-sache-klima/1930-wollen-wir-wissenschaftliches-wissen-oder-wahrheit

https://www.globkult.de/blogs/hans-von-storch-zur-sache-klima/1919-covid-19-und-menschgemachter-klimawandel-als-postnormale-wissenschaftliche-objekte Das Verhältnis von Wissenschaft und Politik ist normalerweise von einer klaren Arbeitsteilung bestimmt-der politische Prozesse trägt die Entscheidungen und damit auch die Verantwortung für die Folgen...

Beitrag #2 in der Kolumne "Globkult: In Sachen Klima" https://www.globkult.de/blogs/hans-von-storch-zur-sache-klima/1908-wir-leben-in-aufregenden-zeiten

Teil einer Reihe von Diskussionsbeiträgen in "Wohlstand für Alle - Klimaschutz und Marktwirtschaft" (https://www.ludwig-erhard.de/wp-content/uploads/Ludwig-Erhard-Stiftung-2020_Wohlstand-f%C3%BCr-Alle_Klimaschutz-und-Marktwirtschaft.pdf) der Ludwig Erhardt Stiftung (https://www.ludwig-erhard.de/)

Survey on opinions of young scholars about Climate Change and the Baltic Sea https://www.baltic-earth.eu/hel2020/material/3rd_BalticEarth_Conference_Proceedings.pdf

Hypothesis on hydrodynamic noise in the Baltic Sea https://www.baltic-earth.eu/hel2020/material/3rd_BalticEarth_Conference_Proceedings.pdf

published in the internet journal "iablis" https://www.iablis.de/167-iablis/themen-jahrgaenge/19-jahrgang-2020-schach-dem-wissen/forum-2020/620-die-illusion-der-klimaheilung-durch-covid-19

veröffentlicht in vdw-magazin 02/20, 55-56 https://www.vdw-online.de/publikationen/magazin/

Das Forschungszentrum in Geesthacht, zunächst GKSS, seit 2010 unter dem Namen „Helmholtz Zentrum Geesthacht Material und Küstenforschung“ (HZG), hat inzwischen eine Geschichte von 60 Jahren hinter sich. Für 40 und mehr Jahre war eine Forschungslinie die Entwicklung automatischer, mariner Beobachtungssysteme. Nach der Abwicklung der in der Sache erf...

An interview by Hans von Storch and Marcus Reckermann with a foreword by Jüri Elken -- This interview was conducted based on personal discussions and e-mail conversations with Anders in 2019 - the most important one at the Waterfront Hotel by the Göta River in Göteborg. There, we also recorded Anders’ video statement, which is part of this intervi...

This interview was conducted based on personal discussions and e-mail conversations with Anders Omstedt in 2019 - the most important one at the Waterfront Hotel by the Göta River in Göteborg. There, we also recorded Anders Omstedt video statement, which is part of this intervie and which is available at the Baltic Earth website (http://baltic.earth...

When subjecting ocean models to atmospheric forcing, the models exhibits two types of variability – a response to the external forcing (hereafter referred to as signal) and inherently generated (internal; intrinsic; unprovoked; chaotic) variations (hereafter referred to as noise). Based on an ensemble of simulations with identical atmospherically f...

Diskussionsessay

The need for action in the context of the climate crisis cannot be more urgent. We should start living with the inevitable climate change and its societal challenges. Adaptation processes are as much needed as are mitigation efforts. Adaptation processes can become the engine for sustainable economic activity. Adaptation can lead to a reduction in...

We have designed a method for testing the quality of multidecadal analyses of sea surface temperature (SST) in regional seas by using a set of high-quality local SST observations. In recognizing that local data may reflect local effects, we focus on the dominant empirical orthogonal functions (EOFs) of the local data and of the localized data of th...

Vortrag zu Wissenschaft, Wissen, Entscheidungen und Politik publiziert in Salonkolumnisten, https://www.salonkolumnisten.com/auch-religion-ist-wissen/

„Wissenschaft schafft Wissen oder „Wissenschaft präsentiert Wahrheit“. Letzteres suggeriert unabweisbare Gültigkeit und Zwang für gesellschaftliche Entscheidungsprozeße. Ersteres verweist den sozialer Prozeß „Wissenschaft“, der von kulturell konditionierten Gruppen betrieben wird, und auf „Wissen“, was oft als Fähigkeit zum Handeln verstanden wird....

The results of survey among students in Qingdao at a national university and at a center for climate science, CLISAP, in Hamburg have been extended by the same survey among students of another European center for climate science, namely CMCC in Bologna. The results from Hamburg and Bologna are very similar, indicating that the perception of the stu...

A npassung an die Klimagefahren, Vorsor-ge vor den Risiken des Klimas sind his-torisch gesehen normale Vorgehensweisen, die wir alle irgendwie praktizieren. Diese Praxis richtet sich nach einer wahrgenomme-nen Normalitåt, die aber oft den Rahmen der tatsåchlichen Risiken nicht ausschaepft. In der Annahme, dass die Natur in begrenzter Weise praktisc...

Festvortrag

The variability across decades of years of migrating eddy activities in the South China Sea (SCS) has not yet been documented. We employ a daily global eddy-resolving (0.1°) model product called STORM that covers a period of 1950-2010 to fill this gap. The frequency and pattern of eddy occurrence in the simulation is broadly consistent with satelli...

Künstliche Intelligenz ist im Routineeinsatz zur raum-zeitlich vollständigen und konsistente Bestimmung des Zustandsraums (Datenassimilation). Sie eignet sich zur Analyse von dynamisch relevanten Teilräumen des Phasenraums, und der Trennung von Signal und Rauschen, und anderen Anwendungen. Künstliche Intelligenz liefert aber kein Verstehen der D...

Eingeladener Beitrag zum Thema "Wissen über Klimawandel" und seine Bedeutung für den politischen Prozess; Wiedergabe mit Genehmigung der Monatszeitschrift "CICERO", in der der Beitrag in der Juli Ausgabe von 2019 erschien. Fast zeitgleich dazu gab es ein Interview in der Sendung "Verzichten zugunsten der Umwelt" am 30.6.2019 von "Sonntags-TV fürs...

about the signal-to-noise ratio study in the regional oceanic system

Distributions of responses to survey among young scholar at the Ocean University of China, Qingdao. The data were used in von Storch, H., Chen X, B.Pfau-Effinger, D. Bray and A. Ullmann, 2019: Attitudes of young scholars in Qingdao and Hamburg about climate change and climate policy – the role of culture for the explanation of differences. Advanc...

This article analyses differences in the attitudes related to climate change of young scholars in environmental science in Qingdao (China) and Hamburg (Germany). The main aim of the article is to evaluate the role of cultural differences for their explanation. We expect no significant differences in the attitudes related to the findings of climate...

The history of ideas, which lead to the now matured concept of empirical downscaling, with various technical procedures, is rooted in two concepts, that of synoptic climatology and that of spatial interpolation in a phase space. In the former case, the basic idea is to estimate from a synoptic weather map the regional details, and to assemble these...

Ein 2,000 Zeichen Beitrag in der Kleinen Zeitung in einer Reihe zum Thema "Klima, Wissenschaft und Politik"

Prof. Dr. Jürgen Sündermann gehört mit zu den Vätern des Klima- und Meereswissenschaftlichen Standorts Hamburg; er hat auch deutliche Spuren im Helmholtz Zentrum Geesthacht hinterlassen. In Hamburg darf man ihm den Ausbau des Instituts für Meereskunde an der Universität, den Auf- und Ausbau der interdisziplinären Meeres- und Klimaforschung einschli...

Interview of an originally German interview of Jürgen Sündermann 管晓晨翻译，陈学恩、江文胜校对

Vorwort

We have designed a method for testing the quality of multidecadal analyses of SST in regional seas by using a set of high-quality local SST observations. In recognizing that local data may reflect local effects, we focus on dominant EOFs of the local data and of the localized data of the analyses. We examine patterns, and the variability as well as...

While it is pretty obvious that actions for reducing the emissions of greenhouse gases into the atmosphere ("mitigation") need to be implemented as soon as possible for being effective, the time dimension of adaptive measures, for dealing the with consequences of non-avoided climate change, is considerably more complex. A major factor is the uncert...

Kommunikation soll hier für Versuche stehen, zwischen zwei Partnern einen Austausch von Konzepten, Wissen und Daten zu bewerkstelligen. Sie gilt mir als gelungen, wenn die Standpunkte und Wissensansprüche des "anderen" verstanden werden; eine Akzeptanz der "Richtigkeit" ist für mich dabei nicht impliziert. Im folgenden fasse ich meine Erfahrungen...

We investigate whether the recently observed trends in daily maximum and minimum near-surface air temperature (Tmax and Tmin, respectively) over South America (SA) are consistent with the simulated response of Tmin and Tmax to anthropogenic forcing. Results indicate that the recently observed warming in the dry seasons is well beyond the range of n...

The links between the different seasonal eddy statistics in the South China Sea, as described in the short working paper, seem to be plausible, but we are not aware of systematic studies, which discuss the dynamical background of such links.

We review the state of dynamical downscaling with scale-constrained regional and global models. The methodology, in particular spectral nudging, has become a routine and well-researched tool for hindcasting climatologies of sub-synoptic atmospheric disturbances in coastal regions. At present, the spectrum of applications is expanding to other pheno...

We review the state of dynamical downscaling with scale-constrained regional and global models. The methodology, in particular spectral nudging, has become a routine and well-researched tool for hindcasting climatologies of sub-synoptic atmospheric disturbances in coastal regions. At present, the spectrum of applications is expanding to other pheno...

The internally generated variability in the climate system, which is unrelated to any external factors, can be conceptualized as “noise”. This noise is a constitutive element of high-dimensional nonlinear models of such systems. In a three-layer nested simulation, which is forced by climatological (periodic) atmospheric forcing and includes an (alm...

By means of a 0.1-degree daily ocean simulation STORM (supported by the German consortium project STORM; J. von Storch et al, 2012), this paper has investigated the characteristics of the travelling eddies in the South China Sea (SCS) from 1950 to 2010 using daily data. The STORM dataset, forced by the 6-hourly NCEP reanalysis data, realistically c...

A decline in dry season precipitation over tropical South America has a large impact on ecosystem health of the region. Results here indicate that the magnitude of negative trends in dry season precipitation in the past decades exceeds the estimated range of trends due to natural variability of the climate system defined in both the preindustrial c...

Nico Stehr and me met first in about 1992, or so, at Cecilienhof in Potsdam. The newly founded Potsdam Institute of Climate Impact Research had convened a group of people who were thought to be able to help bring together the natural science side of climate research and the “societal dimension”, whatever this might mean.

The present study reveals climate features of low-level jets (LLJs) over the Bohai Sea and Yellow Sea (BYS) based on a 35-year (1979 – 2013) high-resolution (7 km) atmospheric hindcast. The regional climate model COSMO-CLM driven by the ERA-Interim reanalysis dataset was used to obtain the hindcast. Through comparison with observations, the hindcas...

Climatology played an important dual role for European colonialism in the19 th century. One aspect was the documentation of the climatic conditions, which colonialists would meet overseas, and the related challenges. Thus, collecting meteorological data was an important task in preparing and managing colonies-a mostly technical-meteorological task....

Russian translation by Сергея Котова of the of the Interview with Jan Harff - original, in German: https://www.academia.edu/35456080/Jan_Harff_-_zwischen_Welten - English translation: https://www.academia.edu/36066693/Jan_Harff_-_Between_Worlds - Polish translation: https://www.academia.edu/36197421/Jan_Harff_pomi%C4%99dzy_%C5%9Bwiatami - Chinese...

Grußwort zum 80ten Geburtstag von Jürgen Sündermann

Chinese translation of the Geman original by 区欣 German original: https://www.researchgate.net/publication/321878537_Jan_Harff_-_zwischen_Welten English translation: https://www.researchgate.net/publication/323538062_Jan_Harff_-_Between_Worlds Polish translation: : https://www.researchgate.net/publication/323848054_Jan_Harff_-_pomiedzy_swiatami

We present a homogenized surface air temperature (SAT) time series at 2 m height for the city of Qingdao in China from 1899 to 2014. This series is derived from three data sources: newly digitized and homogenized observations of the German National Meteorological Service from 1899 to 1913, homogenized observation data of the China Meteorological Ad...

Wywiad przeprowadzony� przez Hansa von Storcha oraz Reinharda Dietricha z przedmową Jörna Thiede Tłumaczenie - Emil Lesner i Andrzej Witkowski This is the translation of an interview, originally done in German, by Emil Lesner and Andrzej Witkowski. The translation was made possible through the generous funding by the Dean of the Faculty of Geoscien...

English translation by Anupa Srinivasan of the German interview of Jan Harff