Impact of COVID-19 on the Spatio-temporal Distribution of CO2 Emission by Han Yanxin

“…From the perspective of the seasonal cycle, the outbreak of COVID-19 caused a shift in the minimum ECO2 in 2020 from the Northern Hemisphere summer (JJA) to the Northern Hemisphere winter (MAM), reflecting the impact of the COVID-19 outbreak on global ECO2. …”
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Sensitivities of a cyclone detection and tracking algorithm: individual tracks and climatology by Joaquim G. Pinto, Thomas Spangehl, Uwe Ulbrich, Peter Speth

“…Northern Hemisphere cyclone activity is assessed by applying an algorithm for the detection and tracking of synoptic scale cyclones to mean sea level pressure data. …”
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Forced summer stationary waves: the opposing effects of direct radiative forcing and sea surface warming by Baker, H, Woollings, T, Mbengue, C, Allen, M, O'Reilly, C, Shiogama, H, Sparrow, S

“…In large ensembles of three general circulation models, direct CO2 forcing produces a wavenumber 5 stationary wave over the Northern Hemisphere in summer. Sea surface warming produces a similar wave, but with the opposite sign. …”

The Ecological Role of Salamanders as Prey and Predators by Sebastiano Salvidio

“…Salamanders comprise more than 700 living species, mainly found in the Northern hemisphere (i [...]…”
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Solving the enigma of granivory rates in Patagonia and throughout other deserts of the world: is thermal range the explanation? by Patricia J. Folgarait, J. Adrián Monjeau, Marcelo Kittlein

“…Murid rodents had arrived earlier in the Northern Hemisphere than ín the Southern, and therefore, had greater opportunity to develop the granivore syndrome. …”
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Importance of lower atmospheric forcing and magnetosphere-ionosphere coupling in simulating neutral density during the February 2016 geomagnetic storm by Astrid Maute, Gang Lu, Delores J. Knipp, Delores J. Knipp, Brian J. Anderson, Sarah K. Vines

“…In this study we compare the neutral density observed by Swarm-C during the moderate geomagnetic storm of 31 January to 3 February 2016 with the Thermosphere-Ionosphere-Electrodynamics-GCM (TIEGCM) finding that the model can capture the observed large scale neutral density variations better in the southern than northern hemisphere. The importance of more realistic lower atmospheric (LB) variations as specified by the Whole Atmosphere Community Climate Model eXtended (WACCM-X) with specified dynamics (SD) is demonstrated by improving especially the northern hemisphere neutral density by up to 15% compared to using climatological LB forcing. …”
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N₂O as a regression proxy for dynamical variability in stratospheric trace gas trends by K. Dubé, S. Tegtmeier, A. Bourassa, D. Zawada, D. Degenstein, P. E. Sheese, K. A. Walker, W. Randel

“…Using the <span class="inline-formula">N₂O</span> regression proxy, we show that observed <span class="inline-formula">HCl</span> increases in the Northern Hemisphere are due to changes in the stratospheric circulation. …”
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Trend Analysis Blocking system in the north of Himesepher by Fatemeh Abedi, Dariush Rahimi, s .abolfazl masodian

“…Moreover, finding show that Most of the blocking systems in the northern hemisphere are in all seasons and their continuity in the Atlantic and Pacific. …”
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A survey of UK beekeeper’s Varroa treatment habits by Alexandra Valentine, Stephen J. Martin

“…The global spread of the parasitic mite Varroa destructor instigated a substantial decline in both managed and feral honeybee (Apis mellifera) colonies mainly across the Northern hemisphere. In response, many beekeepers began to treat their colonies with chemical acaricides to control mite populations in managed colonies. …”
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Tularemia as a Mosquito-Borne Disease by Zakaria Abdellahoum, Max Maurin, Idir Bitam

“…<i>Francisella tularensis</i> (Ft) is the etiological agent of tularemia, a disease known for over 100 years in the northern hemisphere. Ft includes four subspecies, of which two are the etiologic agents of tularemia: Ft subsp. …”
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Analysis of the mid-latitude weather regimes in the 200-year control integration of the SINTEX model by A. Navarra, S. Gualdi, S. Corti

“…The output analysed consists of monthly mean values of Northern Hemisphere&#13; extended winter (November to April) 500-hPa geopotential heights. …”
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A survey of UK beekeeper's Varroa treatment habits. by Alexandra Valentine, Stephen J Martin

“…The global spread of the parasitic mite Varroa destructor instigated a substantial decline in both managed and feral honeybee (Apis mellifera) colonies mainly across the Northern hemisphere. In response, many beekeepers began to treat their colonies with chemical acaricides to control mite populations in managed colonies. …”
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The Earth's Hum Variations From a Global Model and Seismic Recordings Around the Indian Ocean by M. Deen, E. Stutzmann, F. Ardhuin

“…Because the Indian Ocean is uniquely connected to the southern hemisphere oceans but lies partly in northern hemisphere latitudes, the seasonal pattern of the hum recorded there is particular and shows no significant seasonal variations. …”
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Dynamics of air temperature in the main types of mountain Crimea regional ecosystems by Roman V. Gorbunov, Vladimir A. Tabunshchik, Tatyana Yu. Gorbunova, Maria S. Safonova

“…For each circulation epoch and period of the Northern Hemisphere, maps of average annual temperatures were obtained along the landscape contours of the Crimean Peninsula. …”
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Observations of the mesospheric semi-annual oscillation (MSAO) in water vapour by Odin/SMR by S. Lossow, J. Urban, J. Gumbel, P. Eriksson, D. Murtagh

“…On the other hand, the annual variation is much more prominent in the Northern Hemisphere subtropics. Furthermore, higher volume mixing ratios during summer and lower values during winter are observed in the Northern Hemisphere subtropics, as compared to the corresponding latitude range in the Southern Hemisphere.…”
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Influence of the quasi-biennial oscillation and El Nino-Southern Oscillation on the frequency of sudden stratospheric warmings by Richter, J, Matthes, K, Calvo, N, Gray, L

“…Stratospheric sudden warmings (SSWs) are a major source of variability during Northern Hemisphere winter. The frequency of occurrence of SSWs is influenced by El Nio-Southern Oscillation (ENSO), the quasi-biennial oscillation (QBO), the 11 year solar cycle, and volcanic eruptions. …”

Teleconnections of the Quasi-Biennial Oscillation in a multi-model ensemble of QBO-resolving models by Anstey, JA, Simpson, IR, Richter, JH, Naoe, H, Taguchi, M, Serva, F, Gray, LJ, Butchart, N, Hamilton, K, Osprey, S, Bellprat, O, Braesicke, P, Bushell, AC, Cagnazzo, C, Chen, C, Chun, H, Garcia, RR, Holt, L, Kawatani, Y, Kerzenmacher, T, Kim, Y, Lott, F, McLandress, C, Scinocca, J, Stockdale, TN, Versick, S, Watanabe, S, Yoshida, K, Yukimoto, S

“…The models do not show clear evidence of a QBO teleconnection to the Northern Hemisphere Pacific‐sector subtropical jet. …”

Latitudes and land use: Global biome shifts in vegetation persistence across three decades by Jane Southworth, Sadie J. Ryan, Hannah V. Herrero, Reza Khatami, Erin L. Bunting, Mehedy Hassan, Carly S. Muir, Peter Waylen

“…The main drivers of changes appear to relate to climate, with tropical biomes linking to the availability of seasonal moisture, whereas the northern hemisphere forested biomes are driven more by temperature. …”
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Performance Analysis of GPS/BDS Broadcast Ionospheric Models in Standard Point Positioning during 2021 Strong Geomagnetic Storms by Qiang Li, Xing Su, Yan Xu, Hongyang Ma, Zhimin Liu, Jianhui Cui, Tao Geng

“…BDS has a better positioning accuracy in the northern hemisphere than that of the southern hemisphere, while the opposite is valid for GPS. …”
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Snow cover setting-up dates in the north of Eurasia: relations and feedback to the macro-scale atmospheric circulation by V. V. Popova, A. V. Shiryaeva, P. A. Morozova

“…For the most portion of the studied territory variations of snow cover setting-up data may be explained by the circulation indices in the terms of Northern Hemisphere Teleconnection Patterns: Scand, EA–WR, WP and NAO (Fig. 2). …”
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