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opencc-by-4.0Jul 2024View details →

Fig. 13 in THE BUXA TIGER RESERVE AS A 'HOT SPOT' OF ANT DIVERSITY IN WEST BENGAL STATE (HYMENOPTERA: FORMICIDAE)

Fig. 13. Number of genera and species in each subfamily of Formicidae found in Buxa Tiger Reserve.

opencc-by-4.0Jul 2024View details →

Fig. 12 in THE BUXA TIGER RESERVE AS A 'HOT SPOT' OF ANT DIVERSITY IN WEST BENGAL STATE (HYMENOPTERA: FORMICIDAE)

Fig. 12. Number of species in genera of ants known from Buxa Tiger Reserve.

opencc-by-4.0Jul 2024View details →

Figs 1, 2. Buxa Tiger Reserve. 1 in THE BUXA TIGER RESERVE AS A 'HOT SPOT' OF ANT DIVERSITY IN WEST BENGAL STATE (HYMENOPTERA: FORMICIDAE)

Figs 1, 2. Buxa Tiger Reserve. 1 – water bodies of reserve; 2 – elephant herd inside forest.

opencc-by-4.0Aug 2024View details →

Dataset - "An Adaptive Multi-Seasonal ARIMA Approach for Domestic Hot Water Load Forecasting: A Pilot Study"

The description of the data is in README.txt.

Data from 'Hot spots of bleaching in massive Porites coral colonies'

Data from 'Hot spots of bleaching in massive Porites coral colonies' published in Marine Environmental Research.

Implementation of Aerosol Mie Scattering in POSEIDON with Application to the hot Jupiter HD 189733 b's Transmission, Emission, and Reflected Light Spectrum - Supplementary Material

Supplementary material to 'Implementation of Aerosol Mie Scattering in POSEIDON with Application to the hot Jupiter HD 189733 b’s Transmission, Emission, and Reflected Light Spectrum' This zenodo repository corresponds to the updates to POSEIDON presented in Mullens et al 2024, as well as the benchmark retrievals preformed on archival HD 189733 b.  In the upper level of the repository we have data products mentioned in the paper: aersosol_database.pdf  Aerosol-Database-Readme.txt aerosol_database.hdf5 There are then three directories (here as zip files):  Aerosol-Datbase - This folder contains the aerosol properties for aerosols in Table 1 in the paper. It contains the aerosol-database.hdf5 which contains the precomputed aerosol properties that POSEIDON utilizes in forward models and retrievals, a folder containing the npy files that have individual precomputed aerosol properties (used to generate the hdf5 file), a pdf containing the refractive indices + precomputed aerosol properties for each aerosol in the database (png versions of these figures are available in the Aerosol-Optical-Properties-Pngs folder), the refractive index txt files for each aerosol, and a readme file that contains information on each aerosol in the database (such as aerosol name, polymorph, crystalline or amorphous, crystal shape, information on samples used in refractive index references, and exoplanet/planetary science specific references).  HD-189733b-Retrievals - Contains retrieval scripts and retrieval results for the transmission, emission, and emission+reflection retrievals in the paper. Also has the notebooks used to make the figures in the paper. POSEIDO-V1-2 - Contains the POSEIDON module used to run retrievals and generate figures, and corresponds to POSEIDON version 1.2. Also contains a folder containing tutorial notebooks for new features introduced into POSEIDON version 1.2. Included in this repository for posterity.

Hot day at the garden...

Open the record for dataset details and reuse information.

Confirmation of four hot Jupiters detected by TESS using follow-up spectroscopy from MaHPS at Wendelstein together with NEID and TRES

Supplementary material to the paper 'Confirmation of four hot Jupiters detected by TESS using follow-up spectroscopy from MaHPS at Wendelstein together with NEID and TRES': Fig. Z1 - Z4: Fit of the photometric lightcurves (Sec. 2.2) ZT1 -ZT4: Tables showing the parameters, the prior distribution and the posteriors for the four targets after performing a joint fit with the Python package 'juliet' (Sec. 5.1) Fig. Z5_6: S/N values for the observations taken with MaHPS (Sec. 3.2.1) Fig. Z7: O-C diagrams for the search of TTVs (Sec. 5.3.2)

opencc-by-4.0Jul 2021View details →

Minimum number of experimental data for the thermal characterization of a hot water storage tank. Videos of temperature evolution

Videos that show the evolution of the instantaneous temperature profile measured and determined with the models and in the cases developed in the paper "Minimum number of experimental data for the thermal characterization of a hot water storage tank"  by the same authors. Thermocline thickness evolution is also shown. Video 1. Evolution of the instantaneous temperature profile estimated with the 5 MEL models during the charging period. Evolution of thermocline thickness during the same period is displayed in a separate frame also for all MEL models. Video 2. Evolution of the instantaneous temperature profile estimated with the 5 MDH models during the charging period. Evolution of thermocline thickness during the same period is displayed in a separate frame also for all MDH models.

opencc-zeroSep 2021View details →

Temporal stability in species richness but reordering in species abundances within avian assemblages of a Tropical Andes conservation hot spot

As the pace of environmental change increases, there is an urgent need for quantitative data revealing the temporal dynamics of local communities in tropical areas. Here we quantify the stability of avian assemblages in the highly threatened, but poorly studied, Andean biodiversity hot spot. We evaluated the temporal variation in species richness and community composition of local bird assemblages in three habitat types (native forest, introduced forest, native shrub) using a unique, relatively long-term data series from Cajas National Park and Mazán Reserve in the Southern Andes of Ecuador. We sampled birds with mist nets using a standardized protocol over 11 years, from 2006 to 2016. Species richness remained stable over time across habitats, but community composition changed in the native forest. In particular, we observed taxonomic reordering in the native forest, in which the evenness in the distribution of abundances of taxa decreased over time. This finding is consistent with other studies where species richness remained constant over time while community composition changed. Our study highlights the value of long-term studies in the tropical Andes as we show that species composition of birds in a montane forest is changing, consistent with global trends in biodiversity change.

opencc-by-4.0Sep 2021View details →

Data for "North China Plain as a hot spot of ozone pollution exacerbated by extreme high temperature"

Data for "North China Plain as a hot spot of ozone pollution exacerbated by extreme high temperature"

opencc-by-4.0Sep 2021View details →

Magnetism in hot stars

I will review our current knowledge of magnetism in hot stars, in particular the origin and occurrence of magnetic fields in these stars with a radiative envelope, as well as the impact of the magnetic fields on many aspects such as the internal structure of the star, its circumstellar environment, and stellar evolution. These results have been achieved over the last few years thanks to large spectropolarimetric surveys (MiMeS, BinaMIcS, BritePol, LIFE...) combined with theoretical developments and simulations. It is now also possible to combine spectropolarimetry with photometry from space missions (e.g. TESS) to perform magneto-asteroseismology and obtain additional insight on the physics of hot stars.

opencc-by-4.0Sep 2021View details →

Variable stellar outflows as a probe to magnetic fields and other physical characteristics of hot, massive stars

It is now clear that the radiatively driven outflows from hot, massive stars are far more complex than the simple homogeneous and spherically symmetric flows originally envisioned. With the advent of high resolution, high cadence observations of various types in the past decades, a myriad of phenomena have been uncovered that can help us reach a better understanding of the parameters and characteristics of the stars from which these winds originate. This in turn has important ramifications on the various phases of evolution of the star and on the way it will ultimately end its life. In this talk, I will review the many observational signatures of variable stellar outflows of massive stars and describe how they relate to physical characteristics of the underlying star, with a particular emphasis on magnetic fields.

opencc-zeroJan 2023View details →

Data from: Reproducing in hot water: experimental heatwaves deteriorate multiple reproductive traits in a freshwater ectotherm

Heatwaves are occurring at an increasing frequency and intensity under ongoing climate change. With many reproductive traits – including mating behaviour and gamete traits– being sensitive even to small stressors, including short temperature changes, the impact of heatwaves on reproduction and sexual selection processes is likely to be vast. Also, understanding whether the sexes may differentially respond to these extreme events is crucial to understand the impact on fecundity and the consequence at the population level. Nonetheless, our knowledge of the effects of heatwaves on these key aspects of an animal life is still limited. Here, we expose recently mated male and female guppies (Poecilia reticulata) to an experimental heatwave (32°C, 6°C above the control, for 5 days) to determine its effects on several traits, including sexual behaviour, condition, ornamentation, and fertility. Using this design, in contrast to most other experimental set ups, we had the possibility to attribute the effects of the heatwave to males' and females' reproductive traits independently. Overall, our results indicate that heatwaves can drastically affect key reproductive traits and unravel sex-specific responses. In males, there was no effect of the heatwave on survival, but both pre- and post-copulatory reproductive traits were affected. After the heatwave, we detected a decrease in orange colouration (the most important ornament on which female choice is based) and the overall level of sexual activity, and a shift in the preferred mating tactic towards forced copulation attempts. The latter suggest implications in sexual conflict dynamics, as forced copulations override female mate choice. Also, after the heatwave, males had more sperm but of lower quality, and, in addition, an increased variance in sperm number. Overall, heatwaves may result in a compromised ability to secure mating and fertilization. In females, the heatwave significantly affected survival, with increased mortality in the short term, and impaired fecundity, with many females from the heatwave treatment not reproducing at all. The negative effects of heatwaves on key reproductive traits unravelled by our study could have major implications for population dynamics and persistence. It highlights the need for further studies on these extreme events on reproduction, to improve our understanding of the impacts of climate change.

opencc-zeroMar 2023View details →

Data from: Helpers don't help when it's hot in a cooperatively breeding bird, the Southern Pied Babbler

Cooperative breeding, where more than two individuals invest in rearing a single brood, occurs in many bird species globally and often contributes to improved breeding outcomes. However, high temperatures are associated with poor breeding outcomes in many species, including cooperative species. We used data collected over three austral summer breeding seasons to investigate the contribution that helpers make to daytime incubation in a cooperatively breeding species, the Southern Pied Babbler Turdoides bicolor, and the ways in which their contribution is influenced by temperature. Helpers spent a significantly higher percentage of their time foraging (41.8 ± 13.7%) and a significantly lower percentage of their time incubating (18.5 ± 18.8%) than members of the breeding pair (31.3 ± 11% foraging & 37.4 ± 15.7% incubating). In groups with only one helper, the helper's contribution to incubation was similar to that of breeders. However, helpers in larger groups contributed less to incubation, individually, with some individuals investing no time in incubation on a given observation day. Helpers significantly decrease their investment in incubation on hot days (>35.5°C), while breeders tend to maintain incubation effort as temperatures increase. Our results demonstrate that pied babblers share the workload of incubation unequally between breeders and helpers, and this inequity is more pronounced during hot weather. These results may help to explain why recent studies have found that larger group size does not buffer against the impacts of high temperatures in this and other cooperatively breeding species.

opencc-by-4.0Apr 2023View details →

Giant Tidal Tails of Helium Escaping the Hot Jupiter HAT-P-32 b

This dataset contains materials presented in the paper ``Giant Tidal Tails of Helium Escaping the Hot Jupiter HAT-P-32 b'' (Zhang et al. 2023) accepted for publication by Science Advances. Please cite this paper and the Zenodo repository if these data are used in your work. Description of these files:  <ul> <li>HPF_data.zip includes all 77 observed HPF spectral data of HAT-P-32 A+b.</li> <li>HAT-P-32b_properties.csv includes our measured spectroscopic and physical properties of the planetary system. Columns of this file are explained in a README file README_HAT-P-32b_properties.dat</li> <li>3d_simulation_EW_vs_orbital_phase.dat includes the helium excess equivalent widths as a function of the planet's orbital phase, as predicted by our 3D hydrodynamic simulations</li> <li>3d_simulation_orbital_phase_vs_helium_central_wavelength.dat includes the central wavelength of helium excess spectral feature (in the stellar restframe) as a function of the planet's orbital phase, as predicted by our 3D hydrodynamic simulations. </li> </ul>

opencc-by-4.0Jul 2022View details →

Development of a Machine Learning-Based Model to Determine the Optimum and Safe Restriping Timing of Thermoplastic Pavement Markings in Hot and Humid Climates

Due to limited budget, most transportation agencies restripe their thermoplastic pavement markings based on a fixed schedule or based on visual inspection instead of monitoring the retroreflectivity and restriping when the retroreflectivity drops below a pre-determined threshold. These strategies are questionable in terms of efficiency and economy. Therefore, previous studies proposed degradation models to predict the retroreflectivity of thermoplastic markings based on key variables. Yet, most of these studies reported low R2 (as low as 0.1), which placed little confidence in these models.  Therefore, the objective of this study was to evaluate and predict the field performance of thermoplastics and to propose cost-effective restriping strategies for thermoplastics used in hot and humid climate service conditions. To achieve this objective, National Transportation Product Evaluation Program (NTPEP) data were mined and analyzed. Results indicated that the service life (SL) of thermoplastics ranged between 0.4 and 12.1 years (according to the initial retroreflectivity, traffic, and surface type) with an average value of 3.4 ± 0.2 years. Four regression models with relatively high accuracy were developed to predict the SL of thermoplastics based on key variables. In addition, the genetic algorithm was used to develop a model that predicts the future retroreflectivty of these pavement markings. The predicted values were compared against actual retroreflectivity measurements collected from a field experiment at Louisiana State University. The results of this study could be used to make effective decisions related to restriping scheduling. Using the proposed models in restriping scheduling can result in considerable cost savings (up to $8,212 per lane-mile), as compared to the conventional restriping strategy.

opencc-by-4.0May 2023View details →

Products and Models for "A broadband thermal emission spectrum of the ultra-hot Jupiter WASP-18b"

Close-in giant exoplanets with temperatures greater than 2,000 K (“ultra-hot Jupiters”) have been the subject of extensive efforts to determine their atmospheric properties using thermal emission measurements from the Hubble and Spitzer Space Telescopes1–3. However, previous studies have yielded inconsistent results because the small sizes of the spectral features and the limited information content of the data resulted in high sensitivity to the varying assumptions made in the treatment of instrument systematics and the atmospheric retrieval analysis3–12. Here we present a dayside thermal emission spectrum of the ultra-hot Jupiter WASP-18b obtained with the NIRISS13 instrument on JWST. The data span 0.85 to 2.85 μm in wavelength at an average resolving power of 400 and exhibit minimal systematics. The spectrum shows three water emission features (at <6σ confidence) and evidence for optical opacity, possibly due to H-, TiO, and VO (combined significance of 3.8σ). Models that fit the data require a thermal inversion, molecular dissociation as predicted by chemical equilibrium, a solar heavy-element abundance (“metallicity”, M/H = 1.03-0.51+1.11 x solar), and a carbon-to-oxygen (C/O) ratio less than unity. The data also yield a dayside brightness temperature map, which shows a peak in temperature near the sub-stellar point that decreases steeply and symmetrically with longitude toward the terminators.

opencc-zeroAug 2023View details →

Geospatial data from: Identifying opportunity hot spots for reducing the risk of wildfire-caused carbon loss in western US conifer forests

The geospatial dataset includes raster and vector data for visualizing the spatial distribution of risk of wildfire-caused carbon loss in Peeler et al. 2023. Raster data evaluate carbon exposure, sensitivity, and vulnerability at the pixel-level across western US carbon forests. Vector data aggregate pixel-level findings into project area and fireshed spatial units to identify target geographies (or "opportunity hot spots") where proactive forest management could reduce the greatest risk from wildfire to carbon. Vector data also identifies firesheds in which proactive forest management could simultaneously reduce the risk from wildfire to carbon and human communities.