Log in

Relevant bibliographies by topics / Anthropogenic signal / Journal articles

To see the other types of publications on this topic, follow the link: Anthropogenic signal.

Journal articles on the topic 'Anthropogenic signal'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Anthropogenic signal.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Gordeev, Vasily, Sergey Malyshkov, and Vitaly Polivach. "GEOPHYSICAL MONITORING OF TECHNOGENIC HAZARDS ON ANTHROPOGENIC SOILS." Interexpo GEO-Siberia 1, no. 2 (2019): 65–72. http://dx.doi.org/10.33764/2618-981x-2019-1-2-65-72.

Full text

Abstract:

Rock stability estimation tasks on anthropogenic soils require both preliminary survey and on-going real-time monitoring providing alerts on possible cave-in threats. Using VLF monitoring data incorporated into software-hardware geodynamical processes automated surveillance system allows to accomplish that task. Authors describe a unique method, based on Earth’s natural pulsed electro-magnetic field (ENPEMF) recording and make conclusions on the efficiency of the solutions ap-plied for hazardous geodynamic processes monitoring on anthropogenic soils. The principle of the method is to distingui

APA, Harvard, Vancouver, ISO, and other styles

2

Zhang, Honghai, and Thomas L. Delworth. "Detectability of Decadal Anthropogenic Hydroclimate Changes over North America." Journal of Climate 31, no. 7 (2018): 2579–97. http://dx.doi.org/10.1175/jcli-d-17-0366.1.

Full text

Abstract:

Regional hydroclimate changes on decadal time scales contain substantial natural variability. This presents a challenge for the detection of anthropogenically forced hydroclimate changes on these spatiotemporal scales because the signal of anthropogenic changes is modest, compared to the noise of natural variability. However, previous studies have shown that this signal-to-noise ratio can be greatly improved in a large model ensemble where each member contains the same signal but different noise. Here, using multiple state-of-the-art large ensembles from two climate models, the authors quantit

APA, Harvard, Vancouver, ISO, and other styles

3

Svoma, Bohumil M., and Robert C. Balling. "An anthropogenic signal in Phoenix, Arizona winter precipitation." Theoretical and Applied Climatology 98, no. 3-4 (2009): 315–21. http://dx.doi.org/10.1007/s00704-009-0121-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Akçay, Çağlar, and Michael D. Beecher. "Multi-modal communication: song sparrows increase signal redundancy in noise." Biology Letters 15, no. 10 (2019): 20190513. http://dx.doi.org/10.1098/rsbl.2019.0513.

Full text

Abstract:

Although the effects of anthropogenic noise on animal communication have been studied widely, most research on the effect of noise in communication has focused on signals in a single modality. Consequently, how multi-modal communication is affected by anthropogenic noise is relatively poorly understood. Here, we ask whether song sparrows ( Melospiza melodia ) show evidence of plasticity in response to noise in two aggressive signals in acoustic and visual modalities. We test two hypotheses: (i) that song sparrows will shift signalling effort to the visual modality (the multi-modal shift hypoth

APA, Harvard, Vancouver, ISO, and other styles

5

Hedegaard, G. B., J. H. Christensen, and J. Brandt. "The relative importance of impacts from climate change vs. emissions change on air pollution levels in the 21st century." Atmospheric Chemistry and Physics Discussions 12, no. 9 (2012): 24501–30. http://dx.doi.org/10.5194/acpd-12-24501-2012.

Full text

Abstract:

Abstract. So far several studies have analysed the impacts of climate change on future air pollution levels. Significant changes due to impacts of climate change have been made clear. Nevertheless, these changes are not yet included in national, regional or global air pollution reduction strategies. The changes in future air pollution levels are caused by both impacts from climate change and anthropogenic emission changes and the importance of these signals needs to be quantified and compared. In this study we use the Danish Eulerian Hemispheric Model (DEHM) driven on meteorological input data

APA, Harvard, Vancouver, ISO, and other styles

6

Gao, Zhengyang, Shuangchao Ge, Jie Li, et al. "An Analog Sensor Signal Processing Method Susceptible to Anthropogenic Noise Based on Improved Adaptive Singular Spectrum Analysis." Sensors 25, no. 5 (2025): 1598. https://doi.org/10.3390/s25051598.

Full text

Abstract:

Sensor measurements are often affected by complex ambient noise and complicating signal processing tasks. The singular spectrum decomposition (SSA) algorithm, while widely used, faces challenges such as the difficulty of determining the number of decomposition layers, requiring iterative adjustments that reduce precision and increase processing time. This paper proposes an improved adaptive singular spectrum analysis (ASSA) algorithm that integrates a deep residual network (Res-Net) for automatic recognition. A comprehensive interference signal database was constructed to train the Deep Res-Ne

APA, Harvard, Vancouver, ISO, and other styles

7

Francis, Clinton D., Catherine P. Ortega, and Alexander Cruz. "Different behavioural responses to anthropogenic noise by two closely related passerine birds." Biology Letters 7, no. 6 (2011): 850–52. http://dx.doi.org/10.1098/rsbl.2011.0359.

Full text

Abstract:

Anthropogenic noise, now common to many landscapes, can impair acoustic communication for many species, yet some birds compensate for masking by noise by altering their songs. The phylogenetic distribution of these noise-dependent signal adjustments is uncertain, and it is not known whether closely related species respond similarly to noise. Here, we investigated the influence of noise on habitat occupancy rates and vocal frequency in two congeneric vireos with similar song features. Noise exposure did not influence occupancy rates for either species, yet song features of both changed, albeit

APA, Harvard, Vancouver, ISO, and other styles

8

Lombardozzi, Danica, Gordon B. Bonan, and Douglas W. Nychka. "The emerging anthropogenic signal in land–atmosphere carbon-cycle coupling." Nature Climate Change 4, no. 9 (2014): 796–800. http://dx.doi.org/10.1038/nclimate2323.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Seong, Min-Gyu, Seung-Ki Min, Yeon-Hee Kim, Xuebin Zhang, and Ying Sun. "Anthropogenic Greenhouse Gas and Aerosol Contributions to Extreme Temperature Changes during 1951–2015." Journal of Climate 34, no. 3 (2021): 857–70. http://dx.doi.org/10.1175/jcli-d-19-1023.1.

Full text

Abstract:

AbstractThis study conducted a detection and attribution analysis of the observed global and regional changes in extreme temperatures during 1951–2015. HadEX3 observations were compared with multimodel simulations from the Coupled Model Intercomparison Project phase 6 (CMIP6) using an optimal fingerprinting technique. Annual maximum daily maximum and minimum temperatures (TXx and TNx; warm extremes) and annual minimum daily maximum and minimum temperatures (TXn and TNn; cold extremes) over land were analyzed considering global, continental, and subcontinental scales. Response patterns (fingerp

APA, Harvard, Vancouver, ISO, and other styles

10

Yakovlev, V. V., and I. V. Korzhenevskaya. "Research on anthropogenic influence on satellite positioning accuracy." E3S Web of Conferences 531 (2024): 04019. http://dx.doi.org/10.1051/e3sconf/202453104019.

Full text

Abstract:

This paper presents the results of research into the accuracy of satellite-based positioning methods in the vicinity of operating industrial and energy facilities. Modern dual-frequency multi-system satellite receivers allow for high accuracy and productivity in compliance with the basic principles of work related to ensuring the criterion of unity of measurements and the mandatory implementation of the rules of localisation of the object and the receiver(s), as well as the study of geometric and temporal factors of satellite passage, with their subsequent application to perform quality measur

APA, Harvard, Vancouver, ISO, and other styles

11

Dunlop, Rebecca, Michael Noad, and Dorian Houser. "Using behavioural response experiments to measure humpback whale hearing in noise." Journal of the Acoustical Society of America 154, no. 4_supplement (2023): A46. http://dx.doi.org/10.1121/10.0022751.

Full text

Abstract:

Currently, there are no direct data on mysticete hearing in noise. Available data comes from anatomical modelling, the assumption they can hear their own sounds, and studies on the effects of various sources of anthropogenic noise on their behavior. This study used a behavioral response study design to quantify humpback whale hearing in natural ocean noise. Tonal signals, ranging from 250 Hz to 16kHz, were used as the stimuli, and a change in humpback group behavior indicated the whales heard the signal. Individual whale and group behavior were quantified using a combination of land-based trac

APA, Harvard, Vancouver, ISO, and other styles

12

Auger, P. A., E. Machu, T. Gorgues, N. Grima, and M. Waeles. "Comparative study of potential transfer of natural and anthropogenic cadmium to plankton communities in the North-West African upwelling." Science of the Total Environment 505 (February 1, 2015): 870–88. https://doi.org/10.1016/j.scitotenv.2014.10.045.

Full text

Abstract:

A Lagrangian approach based on a physical–biogeochemical modeling was used to compare the potential transfer of cadmium (Cd) from natural and anthropogenic sources to plankton communities (Cd-uptake) in the North-West African upwelling. In this region, coastal upwelling was estimated to be the main natural source of Cd while the most significant anthropogenic source for marine ecosystem is provided by phosphate industry. In our model experiment, Cd-uptake (natural or anthropogenic) in the North-West African upwelling is the result of an interplay between the Cd dispersion (by advection p

APA, Harvard, Vancouver, ISO, and other styles

13

Lillis, Ilse Van, and Olaf Boebel. "Marine soundscape planning: Seeking acoustic niches for anthropogenic sound." Journal of Ecoacoustics 2, no. 1 (2018): 1. http://dx.doi.org/10.22261/jea.5gsnt8.

Full text

Abstract:

Both marine mammals and hydroacoustic instruments employ underwater sound to communicate, navigate or infer information about the marine environment. Concurrent timing of acoustic activities using similar frequency regimes may result in (potentially mutual) interference of acoustic signals when both sources are within audible range of the recipient. While marine mammal fitness might be negatively impacted upon, both on individual and population level, hydroacoustic studies may generate low quality data or suffer data loss as a result of bioacoustic interference. This article pursues, in analog

APA, Harvard, Vancouver, ISO, and other styles

14

Perkins-Kirkpatrick, S. E., D. A. Stone, D. M. Mitchell, et al. "On the attribution of the impacts of extreme weather events to anthropogenic climate change." Environmental Research Letters 17, no. 2 (2022): 024009. http://dx.doi.org/10.1088/1748-9326/ac44c8.

Full text

Abstract:

Abstract Investigations into the role of anthropogenic climate change in extreme weather events are now starting to extend into analysis of anthropogenic impacts on non-climate (e.g. socio-economic) systems. However, care needs to be taken when making this extension, because methodological choices regarding extreme weather attribution can become crucial when considering the events’ impacts. The fraction of attributable risk (FAR) method, useful in extreme weather attribution research, has a very specific interpretation concerning a class of events, and there is potential to misinterpret result

APA, Harvard, Vancouver, ISO, and other styles

15

Plancherel, Y., K. B. Rodgers, R. M. Key, A. R. Jacobson, and J. L. Sarmiento. "Role of regression model selection and station distribution on the estimation of oceanic anthropogenic carbon change by eMLR." Biogeosciences Discussions 9, no. 10 (2012): 14589–638. http://dx.doi.org/10.5194/bgd-9-14589-2012.

Full text

Abstract:

Abstract. Differencing predictions of linear regression models generated from hydrographic data collected at different times (the eMLR method) was proposed as a means of quantifying the dominant patterns of change in oceanic anthropogenic carbon in the context of sparse data sets subject to natural variability. The ability of eMLR to recover the anthropogenic carbon signal in the North Atlantic was tested using a global circulation and biogeochemistry model. Basin-scale applications of eMLR on horizontal layers can estimate the change in anthropogenic carbon inventory with an accuracy typicall

APA, Harvard, Vancouver, ISO, and other styles

16

Hamlington, B. D., M. W. Strassburg, R. R. Leben, W. Han, R. S. Nerem, and K.-Y. Kim. "Uncovering an anthropogenic sea-level rise signal in the Pacific Ocean." Nature Climate Change 4, no. 9 (2014): 782–85. http://dx.doi.org/10.1038/nclimate2307.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Min, Seung-Ki, Xuebin Zhang, Francis Zwiers, Hideo Shiogama, Yu-Shiang Tung, and Michael Wehner. "Multimodel Detection and Attribution of Extreme Temperature Changes." Journal of Climate 26, no. 19 (2013): 7430–51. http://dx.doi.org/10.1175/jcli-d-12-00551.1.

Full text

Abstract:

Abstract Recent studies have detected anthropogenic influences due to increases in greenhouse gases on extreme temperature changes during the latter half of the twentieth century at global and regional scales. Most of the studies, however, were based on a limited number of climate models and also separation of anthropogenic influence from natural factors due to changes in solar and volcanic activities remains challenging at regional scales. Here, the authors conduct optimal fingerprinting analyses using 12 climate models integrated under anthropogenic-only forcing or natural plus anthropogenic

APA, Harvard, Vancouver, ISO, and other styles

18

Chou, Trina L., Anjali Krishna, Mark Fossesca, et al. "Interspecific differences in the effects of masking and distraction on anti-predator behavior in suburban anthropogenic noise." PLOS ONE 18, no. 8 (2023): e0290330. http://dx.doi.org/10.1371/journal.pone.0290330.

Full text

Abstract:

Predation is a common threat to animal survival. The detection of predators or anti-predator communication signals can be disrupted by anthropogenic noise; however, the mechanism by which responses are affected is unclear. Masking and distraction are the two hypotheses that have emerged as likely explanations for changes in behavior in noise. Masking occurs when the signal and noise fall within the same sensory domain; noise overlapping the energy in the signal reduces signal detection. Distraction can occur when noise in any sensory domain contributes to a greater cognitive load, thereby redu

APA, Harvard, Vancouver, ISO, and other styles

19

Soe, Kay Khine, Sukree Hajisamae, Penjai Sompongchaiyakul, Prawit Towatana, and Siriporn Pradit. "Feeding Habits and the Occurrence of Anthropogenic Debris in the Stomach Content of Marine Fish from Pattani Bay, Gulf of Thailand." Biology 11, no. 2 (2022): 331. http://dx.doi.org/10.3390/biology11020331.

Full text

Abstract:

This study assessed the feeding habits and ingestion of anthropogenic debris in 34 marine fish species from the southern Gulf of Thailand. A total of 5478 fish samples of 12 families were categorised into seven groups: planktivore, Lucifer feeder, fish feeder, Acetes feeder, shrimp feeder, piscivore, and zoobenthivore fish. A total of 2477 anthropogenic debris items were extracted from 12 fish species by visual inspection. Their ingestion of anthropogenic debris was influenced by season (p < 0.0001), with the highest ingestion during the northeast monsoon season. Furthermore, planktivorous

APA, Harvard, Vancouver, ISO, and other styles

20

Vázquez-Rodríguez, M., X. A. Padin, A. F. Ríos, R. G. J. Bellerby, and F. F. Pérez. "An upgraded carbon-based method to estimate the anthropogenic fraction of dissolved CO<sub>2</sub> in the Atlantic Ocean." Biogeosciences Discussions 6, no. 2 (2009): 4527–71. http://dx.doi.org/10.5194/bgd-6-4527-2009.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Hedegaard, G. B., J. H. Christensen, and J. Brandt. "The relative importance of impacts from climate change vs. emissions change on air pollution levels in the 21st century." Atmospheric Chemistry and Physics 13, no. 7 (2013): 3569–85. http://dx.doi.org/10.5194/acp-13-3569-2013.

Full text

Abstract:

Abstract. So far several studies have analysed the impacts of climate change on future air pollution levels. Significant changes due to impacts of climate change have been made clear. Nevertheless, these changes are not yet included in national, regional or global air pollution reduction strategies. The changes in future air pollution levels are caused by both impacts from climate change and anthropogenic emission changes, the importance of which needs to be quantified and compared. In this study we use the Danish Eulerian Hemispheric Model (DEHM) driven by meteorological input data from the c

APA, Harvard, Vancouver, ISO, and other styles

22

Knutson, T. R., T. L. Delworth, K. W. Dixon, et al. "Assessment of Twentieth-Century Regional Surface Temperature Trends Using the GFDL CM2 Coupled Models." Journal of Climate 19, no. 9 (2006): 1624–51. http://dx.doi.org/10.1175/jcli3709.1.

Full text

Abstract:

Abstract Historical climate simulations of the period 1861–2000 using two new Geophysical Fluid Dynamics Laboratory (GFDL) global climate models (CM2.0 and CM2.1) are compared with observed surface temperatures. All-forcing runs include the effects of changes in well-mixed greenhouse gases, ozone, sulfates, black and organic carbon, volcanic aerosols, solar flux, and land cover. Indirect effects of tropospheric aerosols on clouds and precipitation processes are not included. Ensembles of size 3 (CM2.0) and 5 (CM2.1) with all forcings are analyzed, along with smaller ensembles of natural-only a

APA, Harvard, Vancouver, ISO, and other styles

23

Wang, Zhuo, Yujing Jiang, Hui Wan, Jun Yan, and Xuebin Zhang. "Detection and Attribution of Changes in Extreme Temperatures at Regional Scale." Journal of Climate 30, no. 17 (2017): 7035–47. http://dx.doi.org/10.1175/jcli-d-15-0835.1.

Full text

Abstract:

This paper improves an extreme-value-theory-based detection and attribution method and then applies it to four types of extreme temperatures, annual minimum daily minimum (TNn) and maximum (TXn) and annual maximum daily minimum (TNx) and maximum (TXx), using the HadEX2 observation and the CMIP5 multimodel simulation datasets of the period 1951–2010 at 17 subcontinent regions. The methodology is an analog of the fingerprinting method adapted to extremes using the generalized extreme value (GEV) distribution. The signals are estimated as the time-dependent location parameters of GEV distribution

APA, Harvard, Vancouver, ISO, and other styles

24

Troïanowski, Mathieu, Camille Condette, Nathalie Mondy, Adeline Dumet, and Thierry Lengagne. "Traffic noise affects colouration but not calls in the European treefrog (Hyla arborea)." Behaviour 152, no. 6 (2015): 821–36. http://dx.doi.org/10.1163/1568539x-00003255.

Full text

Abstract:

In terrestrial habitats, traffic noise is responsible for chronic noise exposure and impacts both signal detection and acoustic signal structure. Several species are known to adapt their call structures to cope with noise. However, compromised hearing affects more than acoustic communication, and noise should be consider as a stress factor that can also alter visual communication in the case of carotenoid-based signals. Here, we experimentally investigated the impact of traffic noise on the expression of secondary sexual signals in the European treefrog, Hyla arborea. Treefrogs use multimodal

APA, Harvard, Vancouver, ISO, and other styles

25

Moseley, Dana Lynn, Graham Earnest Derryberry, Jennifer Nicole Phillips, et al. "Acoustic adaptation to city noise through vocal learning by a songbird." Proceedings of the Royal Society B: Biological Sciences 285, no. 1888 (2018): 20181356. http://dx.doi.org/10.1098/rspb.2018.1356.

Full text

Abstract:

Anthropogenic noise imposes novel selection pressures, especially on species that communicate acoustically. Many animals—including insects, frogs, whales and birds—produce sounds at higher frequencies in areas with low-frequency noise pollution. Although there is support for animals changing their vocalizations in real time in response to noise (i.e. immediate flexibility), other evolutionary mechanisms for animals that learn their vocalizations remain largely unexplored. We hypothesize that cultural selection for signal structures less masked by noise is a mechanism of acoustic adaptation to

APA, Harvard, Vancouver, ISO, and other styles

26

Phipps, Steven J., Helen V. McGregor, Joëlle Gergis, et al. "Paleoclimate Data–Model Comparison and the Role of Climate Forcings over the Past 1500 Years*." Journal of Climate 26, no. 18 (2013): 6915–36. http://dx.doi.org/10.1175/jcli-d-12-00108.1.

Full text

Abstract:

Abstract The past 1500 years provide a valuable opportunity to study the response of the climate system to external forcings. However, the integration of paleoclimate proxies with climate modeling is critical to improving the understanding of climate dynamics. In this paper, a climate system model and proxy records are therefore used to study the role of natural and anthropogenic forcings in driving the global climate. The inverse and forward approaches to paleoclimate data–model comparison are applied, and sources of uncertainty are identified and discussed. In the first of two case studies,

APA, Harvard, Vancouver, ISO, and other styles

27

Faranda, Davide, and Dimitri Defrance. "A wavelet-based approach to detect climate change on the coherent and turbulent component of the atmospheric circulation." Earth System Dynamics 7, no. 2 (2016): 517–23. http://dx.doi.org/10.5194/esd-7-517-2016.

Full text

Abstract:

Abstract. The modifications of atmospheric circulation induced by anthropogenic effects are difficult to capture because wind fields feature a complex spectrum where the signal of large-scale coherent structures (planetary, baroclinic waves and other long-term oscillations) is mixed up with turbulence. Our purpose is to study the effects of climate changes on these two components separately by applying a wavelet analysis to the 700 hPa wind fields obtained in climate simulations for different forcing scenarios. We study the coherent component of the signal via a correlation analysis to detect

APA, Harvard, Vancouver, ISO, and other styles

28

Li, Wei, Zhihong Jiang, Xuebin Zhang, and Laurent Li. "On the Emergence of Anthropogenic Signal in Extreme Precipitation Change Over China." Geophysical Research Letters 45, no. 17 (2018): 9179–85. http://dx.doi.org/10.1029/2018gl079133.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Paull, Charles K., William Ussler, Patrick J. Mitts, David W. Caress, and G. James West. "Discordant 14C-stratigraphies in upper Monterey Canyon: A signal of anthropogenic disturbance." Marine Geology 233, no. 1-4 (2006): 21–36. http://dx.doi.org/10.1016/j.margeo.2006.07.008.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Lu, Chunhui, Ying Sun, and Xuebin Zhang. "Anthropogenic Influence on the Diurnal Temperature Range since 1901." Journal of Climate 35, no. 22 (2022): 3583–98. http://dx.doi.org/10.1175/jcli-d-21-0928.1.

Full text

Abstract:

Abstract The diurnal temperature range (DTR) as measured by the difference between daily maximum (Tmax) and minimum (Tmin) temperatures is of great importance to human health, ecology, and agriculture. The link of its long-term change to anthropogenic forcing is still unclear. This study shows evidence of human influence on long-term changes in DTR over the globe, five continents, and China during the past century (1901–2014). Using multiple observational datasets, we find a general decrease in the DTR over most of the global land since 1901, especially after the mid-1950s. Changes in DTR are

APA, Harvard, Vancouver, ISO, and other styles

31

Dayalu, Archana, J. William Munger, Steven C. Wofsy, et al. "Assessing biotic contributions to CO<sub>2</sub> fluxes in northern China using the Vegetation, Photosynthesis and Respiration Model (VPRM-CHINA) and observations from 2005 to 2009." Biogeosciences 15, no. 21 (2018): 6713–29. http://dx.doi.org/10.5194/bg-15-6713-2018.

Full text

Abstract:

Abstract. Accurately quantifying the spatiotemporal distribution of the biological component of CO2 surface–atmosphere exchange is necessary to improve top-down constraints on China's anthropogenic CO2 emissions. We provide hourly fluxes of CO2 as net ecosystem exchange (NEE; µmol CO2 m−2 s−1) on a 0.25∘×0.25∘ grid by adapting the Vegetation, Photosynthesis, and Respiration Model (VPRM) to the eastern half of China for the time period from 2005 to 2009; the minimal empirical parameterization of the VPRM-CHINA makes it well suited for inverse modeling approaches. This study diverges from previo

APA, Harvard, Vancouver, ISO, and other styles

32

Clear, Jennifer L., Chiara Molinari, and Richard H. W. Bradshaw. "Holocene fire in Fennoscandia and Denmark." International Journal of Wildland Fire 23, no. 6 (2014): 781. http://dx.doi.org/10.1071/wf13188.

Full text

Abstract:

Natural disturbance dynamics, such as fire, have a fundamental control on forest composition and structure. Knowledge of fire history and the dominant drivers of fire are becoming increasingly important for conservation and management practice. Temporal and spatial variability in biomass burning is examined here using 170 charcoal and 15 fire scar records collated throughout Fennoscandia and Denmark. The changing fire regime is discussed in relation to local biogeographical controls, regional climatic change, anthropogenic land use and fire suppression. The region has experienced episodic vari

APA, Harvard, Vancouver, ISO, and other styles

33

Wang, Yanjun, Mengjie Wang, Fei Teng, and Yiye Ji. "Remote Sensing Monitoring and Analysis of Spatiotemporal Changes in China’s Anthropogenic Carbon Emissions Based on XCO2 Data." Remote Sensing 15, no. 12 (2023): 3207. http://dx.doi.org/10.3390/rs15123207.

Full text

Abstract:

The monitoring and analysis of the spatiotemporal distribution of anthropogenic carbon emissions is an important part of realizing China’s regional “dual carbon” goals; that is, the aim is for carbon emissions to peak in 2030 an to achieve carbon neutrality by 2060, as well as achieving sustainable development of the ecological environment. The column-averaged CO2 dry air mole fraction (XCO2) of greenhouse gas remote sensing satellites has been widely used to monitor anthropogenic carbon emissions. However, selecting a reasonable background region to eliminate the influence of uncertainty fact

APA, Harvard, Vancouver, ISO, and other styles

34

Roberts, Louise, and Aaron N. Rice. "Vibrational and acoustic communication in fishes: The overlooked overlap between the underwater vibroscape and soundscape." Journal of the Acoustical Society of America 154, no. 4 (2023): 2708–20. http://dx.doi.org/10.1121/10.0021878.

Full text

Abstract:

Substrate-borne communication via mechanical waves is widespread throughout the animal kingdom but has not been intensively studied in fishes. Families such as the salmonids and sculpins have been documented to produce vibratory signals. However, it is likely that fish taxa on or close to the substrate that produce acoustic signals will also have a vibratory component to their signal due to their proximity to substrates and energy transfer between media. Fishes present an intriguing opportunity to study vibrational communication, particularly in the context of signal production and detection,

APA, Harvard, Vancouver, ISO, and other styles

35

Talento, Stefanie, and Marcelo Barreiro. "Estimation of Natural Variability and Detection of Anthropogenic Signal in Summertime Precipitation over South America." Advances in Meteorology 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/725343.

Full text

Abstract:

We use a coupled model to estimate the natural variability of summertime rainfall over South America and to determine the time horizon when anthropogenic forcing will start having an effect on it. We use a combination of three experiments: preindustrial, 20th century, and the projected changes under A1B scenario. The first empirical orthogonal function of rainfall in December–February is used to characterize summertime variability. The model can display two different regimes of natural variability of this mode. In one regime, there is a strong coupling between the South Atlantic convergence zo

APA, Harvard, Vancouver, ISO, and other styles

36

Frasier, Kaitlin E. "A machine learning pipeline for classification of cetacean echolocation clicks in large underwater acoustic datasets." PLOS Computational Biology 17, no. 12 (2021): e1009613. http://dx.doi.org/10.1371/journal.pcbi.1009613.

Full text

Abstract:

Machine learning algorithms, including recent advances in deep learning, are promising for tools for detection and classification of broadband high frequency signals in passive acoustic recordings. However, these methods are generally data-hungry and progress has been limited by challenges related to the lack of labeled datasets adequate for training and testing. Large quantities of known and as yet unidentified broadband signal types mingle in marine recordings, with variability introduced by acoustic propagation, source depths and orientations, and interacting signals. Manual classification

APA, Harvard, Vancouver, ISO, and other styles

37

Adami, Kristian Zarb, and I. O. Farhat. "Low-frequency technology for a lunar interferometer." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 379, no. 2188 (2020): 20190575. http://dx.doi.org/10.1098/rsta.2019.0575.

Full text

Abstract:

This work sketches a possible design architecture of a low-frequency radio interferometer located on the lunar surface. The design has evolved from single antenna experiments aimed at the global signal detection of the epoch of reionization (EoR) to the square kilometre array (SKA) which, when complete, will be capable of imaging the highly red-shifted H 1 -signal from the cosmic dawn through to the EoR. However, due to the opacity of the ionosphere below 10 MHz and the anthropogenic radio-frequency interference, these terrestrial facilities are incapable of detecting pre-ionization signals an

APA, Harvard, Vancouver, ISO, and other styles

38

Ekka, Shail Vijeta, Yu-Hsuan Liang, Kuo-Fang Huang, and Der-Chuen Lee. "Molybdenum Isotopic Fingerprints in Taiwan Rivers: Natural versus Anthropogenic Sources." Water 15, no. 10 (2023): 1873. http://dx.doi.org/10.3390/w15101873.

Full text

Abstract:

Two rivers from Taiwan with different source inputs, the Danshuei (polluted) and Liwu (non-polluted), were selected to study the behavior of molybdenum (Mo) isotopes during weathering and riverine transport. In the Danshuei River, δ98/95Mo ranges from 0.83‰ to 1.50‰ (wet season) and 0.54‰ to 1.25‰ (dry season). With a few exceptions, δ98/95Mo in the Danshuei River is lighter during the wet season, while, in contrast, heavier in the dry season. In the Liwu River, δ98/95Mo varies from 0.54‰ to 1.30‰ and gets heavier along the mainstream. Using the MixSIAR model, three Mo sources are identified i

APA, Harvard, Vancouver, ISO, and other styles

39

Knutson, Thomas R., and Jeffrey Ploshay. "Sea Level Pressure Trends: Model-Based Assessment of Detection, Attribution, and Consistency with CMIP5 Historical Simulations." Journal of Climate 34, no. 1 (2021): 327–46. http://dx.doi.org/10.1175/jcli-d-19-0997.1.

Full text

Abstract:

AbstractObserved sea level pressure (SLP) trends for 1901–10, 1951–10, and 1981–2010 are assessed using two observed data sources (HadSLP2_lowvar and 20CRv3) compared to a CMIP5 multimodel ensemble. The CMIP5 simulations include runs with (i) no external forcing (Control runs), (ii) natural external forcing only (Natural-Forcing), or (iii) natural plus anthropogenic forcings combined (All-Forcings). We assess whether the CMIP5 All-Forcing ensemble is consistent with observations and whether there is model-based evidence for detectable anthropogenic influence for the observed SLP trends. For th

APA, Harvard, Vancouver, ISO, and other styles

40

Dong, Siyan, Ying Sun, and Chao Li. "Detection of Human Influence on Precipitation Extremes in Asia." Journal of Climate 33, no. 12 (2020): 5293–304. http://dx.doi.org/10.1175/jcli-d-19-0371.1.

Full text

Abstract:

AbstractThis paper examines the possible influence of external forcings on observed changes in precipitation extremes in the mid-to-high latitudes of Asia during 1958–2012 and attempts to identify particular extreme precipitation indices on which there are better chances to detect the influence of external forcings. We compare a recently compiled dataset of observed extreme indices with those from phase 5 of the Coupled Model Intercomparison Project (CMIP5) simulations using an optimal fingerprinting method. We consider six indices that characterize different aspects of extreme precipitation,

APA, Harvard, Vancouver, ISO, and other styles

41

Koblitz, Jens C. "Arrayvolution: using microphone arrays to study bats in the field." Canadian Journal of Zoology 96, no. 9 (2018): 933–38. http://dx.doi.org/10.1139/cjz-2017-0187.

Full text

Abstract:

Some parameters of echolocation signals can be studied using a single receiver. However, studying parameters such as source level, echolocation beam shape, and direction of signal emission require the use of multireceiver arrays. Acoustic localization allows for determination of the position of bats at the time of signal emission. When multiple animals are present, calls can be assigned to individuals based on their location. This combination makes large multireceiver arrays a powerful tool in bioacoustics research. Here, an overview of different array configurations used to record bats in the

APA, Harvard, Vancouver, ISO, and other styles

42

Fyke, Jeremy G., Miren Vizcaíno, and William H. Lipscomb. "The pattern of anthropogenic signal emergence in Greenland Ice Sheet surface mass balance." Geophysical Research Letters 41, no. 16 (2014): 6002–8. http://dx.doi.org/10.1002/2014gl060735.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Verbitsky, Mikhail Y., Michael E. Mann, Byron A. Steinman, and Dmitry M. Volobuev. "Detecting causality signal in instrumental measurements and climate model simulations: global warming case study." Geoscientific Model Development 12, no. 9 (2019): 4053–60. http://dx.doi.org/10.5194/gmd-12-4053-2019.

Full text

Abstract:

Abstract. Detecting the direction and strength of the causality signal in observed time series is becoming a popular tool for exploration of distributed systems such as Earth's climate system. Here, we suggest that in addition to reproducing observed time series of climate variables within required accuracy a model should also exhibit the causality relationship between variables found in nature. Specifically, we propose a novel framework for a comprehensive analysis of climate model responses to external natural and anthropogenic forcing based on the method of conditional dispersion. As an ill

APA, Harvard, Vancouver, ISO, and other styles

44

Hochet, Antoine, Guillaume Dodet, Fabrice Ardhuin, Mark Hemer, and Ian Young. "Sea State Decadal Variability in the North Atlantic: A Review." Climate 9, no. 12 (2021): 173. http://dx.doi.org/10.3390/cli9120173.

Full text

Abstract:

Long-term changes of wind-generated ocean waves have important consequences for marine engineering, coastal management, ship routing, and marine spatial planning. It is well-known that the multi-annual variability of wave parameters in the North Atlantic is tightly linked to natural fluctuations of the atmospheric circulation, such as the North Atlantic Oscillation. However, anthropogenic climate change is also expected to influence sea states over the long-term through the modification of atmospheric and ocean circulation and melting of sea ice. Due to the relatively short duration of histori

APA, Harvard, Vancouver, ISO, and other styles

45

Lu, Chunhui, Fraser C. Lott, Ying Sun, Peter A. Stott, and Nikolaos Christidis. "Detectable Anthropogenic Influence on Changes in Summer Precipitation in China." Journal of Climate 33, no. 13 (2020): 5357–69. http://dx.doi.org/10.1175/jcli-d-19-0285.1.

Full text

Abstract:

AbstractIn China, summer precipitation contributes a major part of the total precipitation amount in a year and has major impacts on society and human life. Whether any changes in summer precipitation are affected by external forcing on the climate system is an important issue. In this study, an optimal fingerprinting method was used to compare the observed changes of total, heavy, moderate, and light precipitation in summer derived from newly homogenized observation data with the simulations from multiple climate models participating in phase 5 of the Coupled Model Intercomparison Project (CM

APA, Harvard, Vancouver, ISO, and other styles

46

Matveenko, E. A., and D. V. Chebrov. "ANOMALOUS REDUCTION IN THE LEVEL OF SEISMIC NOISE IN PETROPAVLOVSK-KAMCHATSKY IN APRIL 2020." Bulletin of Kamchatka Regional Association «Educational-Scientific Center». Earth Sciences, no. 3(59) (2023): 42–52. http://dx.doi.org/10.31431/1816-5524-2023-3-59-42-52.

Full text

Abstract:

Estimation of the influence of anthropogenic factors on the seismic signal is an important problem in ensuring the quality of seismological data and, accordingly, the quality of scientific research. Due to the unprecedented situation associated with the introduction of measures to prevent the spread of COVID-19, non-working days were established in Russia from April 4 to April 30, 2020. It became possible to assess the impact of a notable decrease in anthropogenic activity on the seismic signal (noise) recorded by seismic instruments in the territory of the largest city of the Kamchatka, Petro

APA, Harvard, Vancouver, ISO, and other styles

47

Shkvyria, M. G., and Ye. B. Yakovlev. "The Role Of Anthropogenic Influence On Biological Signal Field (Bsf) Characteristics Of The Wolf, Canis Lupus Lupus (Canidae, Carnivora)." Vestnik Zoologii 50, no. 1 (2016): 57–64. https://doi.org/10.1515/vzoo-2016-0007.

Full text

Abstract:

Shkvyria, M. G., Yakovlev, Ye. B. (2016): The Role Of Anthropogenic Influence On Biological Signal Field (Bsf) Characteristics Of The Wolf, Canis Lupus Lupus (Canidae, Carnivora). Vestnik Zoologii 50 (1): 57-64, DOI: 10.1515/vzoo-2016-0007, URL: http://dx.doi.org/10.1515/vzoo-2016-0007

APA, Harvard, Vancouver, ISO, and other styles

48

Zhong, Shuping, Jun Ying, and Matthew Collins. "Sources of Uncertainty in the Time of Emergence of Tropical Pacific Climate Change Signal: Role of Internal Variability." Journal of Climate 36, no. 8 (2023): 2535–49. http://dx.doi.org/10.1175/jcli-d-22-0554.1.

Full text

Abstract:

Abstract Determining the time of emergence of anthropogenic climate change signals from natural variability, for both the tropical Pacific mean state and El Niño–Southern Oscillation (ENSO), are critical for early climate warning and adaptation planning. However, there remains considerable uncertainty in estimating those times of emergence in state-of-the-art climate models. In this study, the role of internal variability in the uncertainty of the times of emergence of tropical Pacific annual-mean sea surface temperature (SST) and rainfall, and ENSO-related SST and rainfall are investigated by

APA, Harvard, Vancouver, ISO, and other styles

49

Husby, Magne, and Tore Slagsvold. "The number of syllables per phrase in Great Tit (Parus major) song decreases in strong anthropogenic noise and at northern latitudes." Ornis Norvegica 46 (October 27, 2023): 28–42. http://dx.doi.org/10.15845/on.v46.3854.

Full text

Abstract:

Cover photo: Great Tit male. Photo: Alf Tore Mjøs. Birds may sing to defend a territory and to attract a mate. However, despite many studies clear conclusions remain on how ecological conditions affect the song, such as physical obstacles that may reduce the sound transmission, and anthropogenic noise that may mask the signal. The social environment of the local populations may also be important, such as breeding density and sex ratio, influencing the number of competing males with which to song match, and the distances to the neighbouring males and to prospecting females. During 2016-19, we c

APA, Harvard, Vancouver, ISO, and other styles

50

Hoerling, Martin, James Hurrell, Arun Kumar, et al. "On North American Decadal Climate for 2011–20." Journal of Climate 24, no. 16 (2011): 4519–28. http://dx.doi.org/10.1175/2011jcli4137.1.

Full text

Abstract:

Abstract The predictability of North American climate is diagnosed by taking into account both forced climate change and natural decadal-scale climate variability over the next decade. In particular, the “signal” in North American surface air temperature and precipitation over 2011–20 associated with the expected change in boundary conditions related to future anthropogenic greenhouse gas (GHG) forcing, as well as the “noise” around that signal due to internally generated ocean–atmosphere variability, is estimated. The structural uncertainty in the estimate of decadal predictability is diagnos

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!