Towards critical white ice conditions in lakes under global warming by Gesa A. Weyhenmeyer, Ulrike Obertegger, Hugo Rudebeck, Ellinor Jakobsson, Joachim Jansen, Galina Zdorovennova, Sheel Bansal, Benjamin D. Block, Cayelan C. Carey, Jonathan P. Doubek, Hilary Dugan, Oxana Erina, Irina Fedorova, Janet M. Fischer, Laura Grinberga, Hans-Peter Grossart, Külli Kangur, Lesley B. Knoll, Alo Laas, Fabio Lepori, Jacob Meier, Nikolai Palshin, Mark Peternell, Merja Pulkkanen, James A. Rusak, Sapna Sharma, Danielle Wain, Roman Zdorovennov

“…Here we conducted a coordinated lake ice quality sampling campaign across the Northern Hemisphere during one of the warmest winters since 1880 and show that lake ice during 2020/2021 commonly consisted of unstable white ice, at times contributing up to 100% to the total ice thickness. …”
Get full text

Greenhouse gases Observing SATellite 2 (GOSAT-2): mission overview by Ryoichi Imasu, Tsuneo Matsunaga, Masakatsu Nakajima, Yukio Yoshida, Kei Shiomi, Isamu Morino, Naoko Saitoh, Yosuke Niwa, Yu Someya, Yu Oishi, Makiko Hashimoto, Hibiki Noda, Kouki Hikosaka, Osamu Uchino, Shamil Maksyutov, Hiroshi Takagi, Haruma Ishida, Takashi Y. Nakajima, Teruyuki Nakajima, Chong Shi

“…Furthermore, because of the improved SNR in the SWIR band, the northern limit at which data are obtainable in high-latitude regions of the Northern Hemisphere in winter, where observation data have remained unavailable because of weak signal strength, has moved to higher latitudes. …”
Get full text

Phylogeography of <i>Ramalina farinacea</i> (Lichenized Fungi, <i>Ascomycota</i>) in the Mediterranean Basin, Europe, and Macaronesia by Patricia Moya, Isaac Garrido-Benavent, Salvador Chiva, Sergio Pérez-Ortega, Miguel Blázquez, Tamara Pazos, Tarek Hamel, Leena Myllys, Tor Tønsberg, Per-Anders Esseen, Pedro Carrasco, Eva Barreno

“…<i>Ramalina farinacea</i> is an epiphytic lichen-forming fungus with a broad geographic distribution, especially in the Northern Hemisphere. In the eighties of the last century, it was hypothesized that <i>R. farinacea</i> had originated in the Macaronesian–Mediterranean region, with the Canary Islands as its probable southernmost limit, and thereafter it would have increased its distribution area. …”
Get full text

The STARTWAVE atmospheric water database by J. Morland, B. Deuber, B. Deuber, D. G. Feist, L. Martin, S. Nyeki, S. Nyeki, N. Kämpfer, C. Mätzler, P. Jeannet, L. Vuilleumier

“…Additional stratospheric water vapour profiles are obtained by an airborne microwave radiometer which observes large parts of the northern hemisphere during yearly flight campaigns. The database allows us to validate the various water vapour measurement techniques. …”
Get full text

Vegetation impact on atmospheric moisture transport under increasing land-ocean temperature contrasts by Anastassia M. Makarieva, Andrei V. Nefiodov, Antonio Donato Nobre, Douglas Sheil, Paulo Nobre, Jan Pokorný, Petra Hesslerová, Bai-Lian Li

“…The available data for the Northern Hemisphere indicate that the observed climatological land-ocean temperature contrasts are close to the threshold. …”
Get full text

Global perspective of environmental distribution and diversity of Perkinsea (Alveolata) explored by a meta-analysis of eDNA surveys by Sebastian Metz, Sarah Itoïz, Aleix Obiol, Evelyne Derelle, Ramon Massana, Cédric Berney, Colomban de Vargas, Philippe Soudant, Adam Monier, Aurélie Chambouvet

“…Environmental surveys targeting this lineage are still scarce and mainly limited to the Northern Hemisphere. Here, we aim to conduct an in depth exploration of the Perkinsea group, uncovering the diversity across a variety of environments, including those beyond freshwater and marine ecosystems. …”
Get full text

Heterologous Humoral Response against H5N1, H7N3, and H9N2 Avian Influenza Viruses after Seasonal Vaccination in a European Elderly Population by Ivan Sanz, Silvia Rojo, Sonia Tamames, José María Eiros, Raúl Ortiz de Lejarazu

“…An experimental study was conducted, including pre- and post-vaccine serum samples obtained from 174 elderly people vaccinated with seasonal influenza vaccines of 2006–2007, 2008–2009, 2009–2010, and 2010–2011 Northern Hemisphere vaccine campaigns. The presence of antibodies against A/H5N1, A/H7N3, and A/H9N2 avian influenza viruses were tested by using haemaglutination inhibition assays. …”
Get full text

Global-scale changes to extreme ocean wave events due to anthropogenic warming by Joao Morim, Sean Vitousek, Mark Hemer, Borja Reguero, Li Erikson, Merce Casas-Prat, Xiaolan L Wang, Alvaro Semedo, Nobuhito Mori, Tomoya Shimura, Lorenzo Mentaschi, Ben Timmermans

“…The projected changes exhibit strong inter-hemispheric asymmetry, with strong increases in extreme wave activity across the tropics and high latitudes of the Southern Hemisphere region, and a widespread decrease across most of the Northern Hemisphere. We find that the patterns of projected increase across these extreme wave events over the Southern Hemisphere region resemble their historical response to the positive anomaly of the Southern Annular Mode. …”
Get full text

Ice storm damage to oak forests in subtropical China by Jinyu Guo, Jifa Cui, Nan Wu, Yaqian Zhang, Jie Wang, Hanyu Xiang, Baoshuang Hu, Youbing Zhou

“…Ice storms, as important sources of frequent and injurious disturbances, drive forest dynamics in the Northern Hemisphere. However, stand-level differential vulnerability to ice storms and the associated factors that predispose forest stands remain unclear. …”
Get full text

The Sources and Transport Dynamics of Eolian Sediments in the NE Tibetan Plateau Since 6.7 Ma by Xiaomiao Li, Tingjiang Peng, Zhenhua Ma, Meng Li, Peiye Li, Zhantao Feng, Benhong Guo, Hao Yu, Xiyan Ye, Jun Zhang, Chunhui Song, Jijun Li

“…These shifts in transport mechanism and source were likely related to major changes in the topography of the TP and the expansion of Northern Hemisphere glaciation since the Middle Pliocene. …”
Get full text

Extensive Genetic Connectivity and Historical Persistence Are Features of Two Widespread Tree Species in the Ancient Pilbara Region of Western Australia by Heidi M. Nistelberger, Rachel M. Binks, Stephen van Leeuwen, David J. Coates, Shelley L. McArthur, Bronwyn M. Macdonald, Margaret Hankinson, Margaret Byrne

“…Extensive research has been conducted on phylogeographic patterns of species found in northern hemisphere landscapes that were affected by glaciations, yet the body of literature for older, unaffected landscapes is still underrepresented. …”
Get full text

Vegetation history and its links to climate change during the last 36 ka in arid Central Asia: Evidence from a loess-paleosol sequence in the Eastern Ili Valley by Peilun Liu, Peilun Liu, Peilun Liu, Shanjia Zhang, Menghan Qiu, Qiurong Ruan, Jiaming Luo, Yunfa Miao, Zhiyong Ling

“…Our results further suggest that mountain forests reappear and the lowland environment improves in response to increased insolation in the Northern Hemisphere at high latitudes in the Late LGM. This point in time is earlier by about 5–10 ka compared to previous records. …”
Get full text

Recruitment approaches and profiles of consenting family caregivers and people living with dementia: A recruitment study within a trial by Felicity A. Baker, Laura Blauth, Jodie Bloska, Anna A. Bukowska, Libby Flynn, Ming-Hung Hsu, Edyta Janus, Kjersti Johansson, Helen Odell-Miller, Hayley Miller, Carina Petrowitz, Jonathan Pool, Karette Stensæth, Jeanette Tamplin, Kate Teggelove, Thomas Wosch, Tanara Vieira Sousa

“…Troughs in recruitment rates occurred during Northern Hemisphere summer vacation periods, and during Christmas periods. …”
Get full text

Presence of the tunicate Asterocarpa humilis on ship hulls and aquaculture facilities in the coast of the Biobío Region, south central Chile by Javier Pinochet, Jean-Charles Leclerc, Antonio Brante, Claire Daguin-Thiébaut, Christian Díaz, Florence Tellier, Frédérique Viard

“…This is exemplified by the ascidian Asterocarpa humilis which displays a wide distribution in the Southern Hemisphere and has been recently reported in the Northern Hemisphere (NW Europe). In continental Chile, its first report dates back from 2000 for the locality of Antofagasta (23°S). …”
Get full text

Widespread glacier advances across the Tian Shan during Marine Isotope Stage 3 not supported by climate-glaciation simulations by Qing Yan, Lewis A. Owen, Chuncheng Guo, Zhongshi Zhang, Jinzhe Zhang, Huijun Wang

“…This pattern suggests general synchronicity with the timing of maximum Northern Hemisphere ice sheets during the last glacial, which should be further tested in a multimodel framework in the future.…”
Get full text

Reanalysis of NOAA H₂ observations: implications for the H₂ budget by F. Paulot, G. Pétron, G. Pétron, A. M. Crotwell, A. M. Crotwell, M. B. Bertagni, M. B. Bertagni

“…We also show that changes in soil moisture, soil temperature, and snow cover have most likely caused an increase in the magnitude of the soil sink, the most important removal mechanism for atmospheric <span class="inline-formula">H₂</span>, especially in the Northern Hemisphere. However, there remains uncertainty due to fundamental gaps in our understanding of H<span class="inline-formula">₂</span> soil removal, such as the minimum moisture required for H<span class="inline-formula">₂</span> soil uptake, for which we performed extensive sensitivity analyses. …”
Get full text

Effects on SuperDARN HF radar echoes of sudden impulses of solar wind dynamic pressure by I. Coco, I. Coco, E. Amata, M. F. Marcucci, M. De Laurentis, J. P. Villain, C. Hanuise, M. Candidi

“…In this work we perform a statistical analysis of the ionospheric echo response observed by six radars of the SuperDARN network in the Northern Hemisphere, over 236 Sudden Impulses (SI) of solar wind dynamic pressure events (from 1997 through 2000). …”
Get full text

Farmland Shelterbelt Changes in Soil Properties: Soil Depth-Location Dependency and General Pattern in Songnen Plain, Northeastern China by Yan Wu, Wenjie Wang, Qiong Wang, Zhaoliang Zhong, Huimei Wang, Yanbo Yang

“…Our data support the precise soil evaluation of agroforestry projects in the black soil region in the high-latitude northern hemisphere.…”
Get full text

Determination of the chemical equator from GEOS-Chem model simulation: a focus on the tropical western Pacific region by X. Sun, M. Palm, K. Müller, J. Hachmeister, J. Notholt

“…We find that the vertical structure above 2 km has a slight northern tilt in the Northern Hemisphere (NH) winter season and a southern tilt in the NH summer, meaning the seasonality of the migration of the CE at the lower altitude is larger than that at the higher altitude. …”
Get full text

The adaptation of bumblebees to extremely high elevation associated with their gut microbiota by Jiu-Hong Dong, Xin Xu, Zong-Xin Ren, Yan-Hui Zhao, Yaran Zhang, Li Chen, You Wu, Guotao Chen, Ruiqing Cao, Qi Wu, Hong Wang

“…ABSTRACTBumblebees are among the most abundant and important pollinators for sub-alpine and alpine flowering plant species in the Northern Hemisphere, but little is known about their adaptations to high elevations. …”
Get full text