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62 results for “Climate record”
Climate data for B1 chart recorder, 1952 - 1970.
Climatological data were collected from a ridgetop climate station east of Niwot Ridge (B1 at 2591 m) throughout the year. Parameters measured were temperature, relative humidity, solar radiation, and precipitation. The station was initially instrumented with a thermohygrograph (regularly calibrated and checked with maximum and minimum thermometers and psychrometers), standard 8-inch precipitation gauge installed with the rim 1 m above ground, totalizing anemometer (approximately 0.7 m above the general level of tree crowns), and maximum and minimum soil thermometers at approximately 15 and 30 cm depth. A recording precipitation gauge was installed in 1965. The installation in the clearing was positioned so that the gauge rim subtended an angle of 45 degrees to the tree crowns although the most effective angle is 30 degrees according to Leaf (1962).
Climate data for D1 chart recorder, 1952 - 1982.
Climatological data were collected from a Niwot Ridge climate station (D1 at 3743 m) throughout the year. Parameters measured were temperature, relative humidity, solar radiation, precipitation, barometric pressure, and wind speed. The station was initially instrumented with a thermohygrograph (regularly calibrated and checked with maximum and minimum thermometers and psychrometers), which was equipped with a Bourdon tube (to measure temperature) and a banjo-spread hair element (to measure relative humidity). The thermohygrograph was situated in a white, all wood, louvered Stevenson screen which is oriented with the door facing north. The station was initially instrumented with a standard 8-inch precipitation gauge installed with the rim 1 m above ground. This gauge was not shielded prior to October 1964. A recording precipitation gauge was installed in 1965. An Alter shield and snow fence were placed around the gauge to give more accurate precipitation measurements during windy conditions. Precipitation was caught in a bucket containing ethylene glycol (to melt snow) and light oil (to prevent evaporation). As the weight of the bucket increased, a pen moved up via a spring mechanism and recorded on a rotating chart. Solar radiation was recorded on a bimetalic strip mechanical actinometer. Ninety percent of solar radiation from 360 to 2000 nm was transmitted through the instrument's glass dome. The station was initially instrumented with a totalizing anemometer (2 m height). Wind speed (peak gust) was subsequently measured with a 3-cup, AC-generating anemometer that continuously recorded onto an Esterline Angus strip chart recorder. Wind direction was recorded as a pen position on a continuously recording strip chart. The thermohygrograph, rain gauge, and actinometer all used wind-up or battery-driven clock drives that rotated the recording chart on a right cylindrical drum with a fixed period between 24 h and 861 h depending on the gears used. These clock mechanisms
Climate data for Saddle chart recorder, 1982 - 1988.
Climatological data were collected from a Niwot Ridge climate station (Saddle at 3525 m) throughout the year. Parameters measured were temperature, relative humidity, solar radiation, wind speed, and run of wind. The station was instrumented with a thermohygrograph (regularly calibrated and checked with maximum and minimum thermometers and psychrometers), which was equipped with a Bourdon tube (to measure temperature) and a banjo-spread hair element (to measure relative humidity). The thermohygrograph was situated in a white, all wood, louvered Stevenson screen which was oriented with the door facing north. Solar radiation was recorded on a bimetalic strip mechanical actinometer. Ninety percent of solar radiation from 360 to 2000 nm was transmitted through the instrument's glass dome. Wind speed (peak gust) was measured near T-Van (3440 m), at a location approximately 400 m south of the Saddle climate station, with a 3-cup, AC-generating anemometer that continuously recorded onto an Esterline Angus strip chart recorder. Run of wind was measured with a Belford totalizing cup anenometer with a counter (at a height of approximately 3 meters above ground) and was located near T-Van as well. Average wind speed was calculated from the peak gust trace. The thermohygrograph, and actinometer both used wind-up or battery-driven clock drives that rotated the recording chart on a right cylindrical drum with a fixed period between 24 h and 861 h depending on the gears used. These clock mechanisms were virtually identical and therefore completely interchangeable among the instruments.
Multidecadal-centennial record of Holocene climate changes
<p>Based on the 8 meticulously detailed and accurately dated records detailing climate changes in the Northern Hemisphere over the Holocene, obtained by different proxies from different climatic zones we constructed stack of climate changes. The selected records encompass: δ18O data from the NGRIP Greenland ice core(Rasmussen et al., 2014), Greenland Summit temperature reconstruction using nitrogen and argon isotopes of trapped air within GISP2 ice core bubbles(Döring and Leuenberger, 2022; Kobashi et al., 2017), ice rafted debris (IRD) accumulation data from sediment cores VM29-191(Bond et al., 2001) and MD99-2269(Moros et al., 2006) in the North Atlantic, with adjustments to the age model following Stoner et al.(Stoner et al., 2007), Ti content in sediments from ODP Site 1002 in the northern Cariaco Basin(Haug et al., 2001), records of East Asian summer monsoon (EASM) changes from δ18O stalagmites in Chinese Dongge(Wang et al., 2005) and Sanbao(Dong et al., 2010) Caves, and composite climatic record from Icelandic lakes (Geirsdóttir et al., 2013). All records were linearly interpolated to 10-yr resolution and then detrended and normalized by subtracting the mean value and dividing by the standard deviation. The resulting stack was smoothed using a 150-yr moving average window.<br>Cooling rate was calculated as negative rate of the climate stack changes with 30-yrs resolution.</p>
Directly dating Plio-Pleistocene climate change in the terrestrial record
<p class="MsoNormal">This is the Supporting Information for Dröllner et al. "Directly dating Plio-Pleistocene climate change in the terrestrial record" published in Geophysical Research Letters. The data comes from a ferruginous induration in the arid landscapes of the Nullarbor Plain in southern Australia (30° 54' 33.84'' S, 132° 13' 5.88'' E). The data provides constraints on the timing of Plio-Pleistocene aridification in the continental realm and supports the use of ferruginous indurations as targets to obtain absolute ages on landscape evolution. The dataset includes chemical-mineralogical results, which suggest that the formation of ferruginous indurations was linked with a decline of the groundwater table. (U-Th)/He geochronology of goethite from ferruginous indurations provides age constraints that link the textural and chemical-mineralogical observations to a rapid climatic shift from humid Late Pliocene to arid Early Pleistocene conditions. Specifically, this Supporting Information includes a pdf file (available through Zenodo; <a href="https://doi.org/10.5281/zenodo.7739575" title="https://doi.org/10.5281/zenodo.7739575">https://doi.org/10.5281/zenodo.7739575</a>) with detailed analytical methods for X-ray powder diffraction (XRD, Text S1), energy-dispersive spectroscopy (Text S2), Raman spectroscopy (Text S3), and (U-Th)/He geochronology (Text S4). This pdf file also includes Supporting Figures S1 (sample material, and fragments used for dating) and S2 (XRD spectra), as well as Supporting Tables S1 (XRD bulk mineralogy), S2 ((U-Th)/He data), S3 (XRD instrument parameters), and the captions for Table S4 (Raman data) and Table S5 (XRD data). The latter two datasets are provided as separate files available through Dryad (this data).</p>
A 140-year paleolimnological record of climatically and anthropogenically driven eutrophication in Utikuma Lake, Alberta, Canada
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Directly dating Plio-Pleistocene climate change in the terrestrial record
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Data from: Diversity dynamics of mammals in relation to tectonic and climatic history: comparison of three Neogene records from North America
In modern ecosystems, regions of topographic heterogeneity, when compared with nearby topographically homogeneous regions, support high species densities of mammals and other groups. This biogeographic pattern could be explained by either greater diversification rates or greater accommodation of species in topographically complex regions. In this context, we assess the hypothesis that changes in landscape history have stimulated diversification in mammals. Landscape history includes tectonic and climatic processes that influence topographic complexity at regional scales. We evaluated the influence of changes in topographic complexity and climate on origination and extinction rates of rodents, the most diverse clade of mammals. We compared the Neogene records of rodent diversity for three regions in North America. The Columbia Basin of the Pacific Northwest (Region 1) and the northern Rocky Mountains (Region 2) were tectonically active over much of the Cenozoic and are characterized by high topographic complexity today. The northern Great Plains (Region 3) have been tectonically quiescent, with low relief, throughout the Cenozoic. These three regions have distinctive geologic histories and substantial fossil records. All three regions showed significant changes in diversification and faunal composition over the Neogene. In the montane regions, originations and extinctions peaked at the onset and close, respectively, of the Miocene Climatic Optimum (17–14 Ma), with significant changes in faunal composition accompanying these episodes of diversification. In the Great Plains, rodents showed considerable turnover but infrequent diversification. Peak Neogene diversity in the Great Plains occurred during cooling after the Miocene Climatic Optimum. These histories suggest that climatic changes interacting with increasing topographic complexity intensify macroevolutionary processes. In addition, close tracking of diversity and fossil productivity with the stratigraphic record suggests either large-scale sampling biases or the mutual response of diversity and depositional processes to changes in landscape history.
A four-dimensional, multiyear, and near-global climate data record of the fine-mode (sub-micrometer in terms of diameter) and coarse-mode (super-micrometer in terms of diameter) components of atmospheric pure-dust.
<p>A new four-dimensional, multiyear, and near-global climate data record of the fine-mode (sub-micrometer in terms of diameter) and coarse-mode (super-micrometer in terms of diameter) components of atmospheric pure-dust, is presented. The separation of the two modes of dust in detected atmospheric dust layers is based on a combination of (1) the total pure-dust product provided by the well-established European Space Agency (ESA) - “LIdar climatology of Vertical Aerosol Structure” (LIVAS) database and (2) the coarse-mode component of pure-dust provided by the first-step of the two-step POlarization LIdar PHOtometer Networking (POLIPHON) technique, developed in the framework of European Aerosol Research Lidar Network (EARLINET). The fine-mode component of pure-dust is extracted as the residual between the total pure-dust and the coarse-mode component of pure-dust. Intermediate steps involve the implementation of regionally-dependent lidar-derived lidar-ratio values and AErosol RObotic NETwork (AERONET) based climatological extinction-to-volume conversion factors, facilitating conversion of dust backscatter into extinction and subsequently extinction into mass concentration. The decoupling scheme is applied to Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) observations at 532 nm. The final products consist of the submicrometer (particles with diameter less than 1 μm) and supermicrometer (particles with diameter greater than 1 μm) modes of atmospheric pure-dust, of quality-assured profiles of backscatter coefficient at 532 nm, extinction coefficient at 532 nm, and mass concentration for each of the two components. The datasets are provided primarily with the original L2 horizontal (5 km) and vertical (60 m) resolution of Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) along the CALIPSO orbit-path, and secondly in averaged profiles of seasonal-temporal resolution, 1<sup>o</sup>×1<sup>o</sup> spatial resolution, and with the original vertical resolution of CALIPSO, focusing on the latitudinal band extending between 70<sup>o</sup>S and 70<sup>o</sup>N and covering more than 15-years of Earth Observation (06/2006-12/2021). The quality of the dust products is justified by using AERONET fine-mode and coarse-mode aerosol optical thickness (AOT) interpolated to 532 nm and AERosol properties – Dust (AER-D) campaign airborne in-situ particle size distributions (PSDs) as reference datasets, during atmospheric conditions characterized by dust presence. The near-global fine-mode and coarse-mode pure-dust climate data record is considered unique with respect to a wide range of potential applications, including climatological, time-series, and trend analysis over extensive geographical domains and temporal periods, validation of atmospheric dust models and reanalysis datasets, assimilation activities, investigation of the role of airborne dust on radiation, and air quality.</p>
A 2-million-year record of Amazon climate - CDH-79 X-RF Data (Ti, Ca, Fe, K)
<p>X-ray fluorescence ( Ti, Ca, Fe and K) spanning the last 2 million years (myr) from a piston core (CDH-79) collected offshore of the mouth of the Amazon River and Statistical analisys.</p>
FIGURE 2 in Does The Reproductive Season Account For More Records Of Birds In A Marked Seasonal Climate Landscape In The State Of São Paulo, Brazil?
FIGURE 2: Boxplot (a) and hierarchical cluster analysis (b) of monthly rainfall values collected in Bauru, state of São Paulo, southeastern Brazil, from January 2004-December 2010.
FIGURE 1 in Does The Reproductive Season Account For More Records Of Birds In A Marked Seasonal Climate Landscape In The State Of São Paulo, Brazil?
FIGURE 1: Location (white circle) where bird surveys were carried out in the municipality of Bauru (black arrow), state of São Paulo, southeastern Brazil. Shades of gray represent the original Cerrado vegetation cover (light hue) and the Atlantic forest (intermediate hue); dark gray hues indicate the present-day distribution of Cerrado remnant vegetation.
FIGURE 4 in Does The Reproductive Season Account For More Records Of Birds In A Marked Seasonal Climate Landscape In The State Of São Paulo, Brazil?
FIGURE 4: Differences in the numbers of species (a) and individuals (b) recorded during breeding and nonbreeding seasons at the Jardim Botânico (triangles) and at the UNESP campus (squares), Bauru, state of São Paulo, southeastern Brazil, from September 2005-November 2006. Error bars represent SE.
Figure 1 in Disappearance of summer collection records for Menochilus sexmaculatus (Coleoptera: Coccinellidae) during climate warming
Figure 1. Four-season (March–June, July, August and September–November) frequencies of collection records of Menochilus sexmaculatus collected from the Kansai district during three periods (1949–1979, 1980–1999 and 2000–2004). The numbers above each stacked column represent sample sizes. Statistically significant at ** P <0.0001.
Figure 2 in Disappearance of summer collection records for Menochilus sexmaculatus (Coleoptera: Coccinellidae) during climate warming
Figure 2. Changes in annual mean temperatures in Osaka City and Kobe City during 1949–2004. The regression line for temperature on year is shown in each panel.
Victorian Water and Climate dataset: long-term streamflow, climate, and vegetation observation records and catchment attributes
<p>This dataset contains streamflow, climate, and vegetation data for 155 minimally impaired catchments in Victoria, Australia. </p> <p>What's included:</p> <p>- Streamflow long-term observation records in daily, monthly, and hydroannual (based on March to February water year) resolution</p> <p>- Catchment climate characteristics in daily, monthly, and hydroannual resolution</p> <p>- Catchment vegetation characteristics in monthly resolution and actual evapotranspiration estimate in monthly and hydroannual resolution</p> <p>- Catchment boundaries</p> <p>- Catchment attributes (topographic, geological, soil, groundwater, vegetation, and human impacts characteristics)</p> <p>- Hydroclimatic characteristics for 3 different periods.</p> <p>Precipitation (p), streamflow (q), and PET (pet) data and their derivatives are in mm (i.e. normalised by catchment area). </p> <p>A paper containing a detailed description of the data including units, data sources, and processing details is submitted, please contact Margarita Saft for a private copy of the draft.</p>
Patagonia climate records
<p>Climate data from Patagonia Argentina, 19 and 20 century</p>
Data from: Diversity dynamics of mammals in relation to tectonic and climatic history: comparison of three Neogene records from North America
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Data from: Climate-mediated changes in predator–prey interactions in the fossil record: a case study using shell-drilling gastropods from the Pleistocene Japan Sea
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Acoustic recordings and corresponding mammal, bird, human activity, vegetation, and climate data from a tropical forest landscape
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.