1. Student Services - The College of Arts & Sciences, Cornell University
DUST · Transfer credits · Summer experience grants · Study abroad · Graduation ... Beyond their academic pursuits, our students also immerse themselves in vibrant ...
We are a community. We will help guide you on your path to success...however you define it. Through collaboration and exploration, time spent here will build a foundation for lifelong growth, opportunity and discovery. Find out how to plan your college career and learn about other support services and special opportunities through the Academic Advising office. A&S Career Development is your first stop for career exploration, job/internship search support, graduate school support, interview prep, and more. The A&S registrar supports the curricular and instructional activities of the college by providing accurate grading, enrollment and student record services to the entire A&S College.
2. Studying effects of dust and drought on climate change - The NAU Review
12 apr 2022 · Atmospheric dust plays a key role in Earth's climate system. ... The Cornell team is led by associate professor and climate scientist ...
Atmospheric dust plays a key role in Earth’s climate system. While it can have a positive impact, such as fertilizing the soilssoil, dust can also have a negative impact on our planet’s ecosystems, affecting everything from the weather to global warming.
3. Quantifying the range of the dust direct radiative effect due to source ...
17 mrt 2021 · Dust aerosol (here defined as soil particles suspended in the atmosphere) perturbs the radiative energy balance directly by scattering and ...
Abstract. The large uncertainty in the mineral dust direct radiative effect (DRE) hinders projections of future climate change due to anthropogenic activity. Resolving modeled dust mineral speciation allows for spatially and temporally varying refractive indices consistent with dust aerosol composition. Here, for the first time, we quantify the range in dust DRE at the top of the atmosphere (TOA) due to current uncertainties in the surface soil mineralogical content using a dust mineral-resolving climate model. We propagate observed uncertainties in soil mineral abundances from two soil mineralogy atlases along with the optical properties of each mineral into the DRE and compare the resultant range with other sources of uncertainty across six climate models. The shortwave DRE responds region-specifically to the dust burden depending on the mineral speciation and underlying shortwave surface albedo: positively when the regionally averaged annual surface albedo is larger than 0.28 and negatively otherwise. Among all minerals examined, the shortwave TOA DRE and single scattering albedo at the 0.44–0.63 µm band are most sensitive to the fractional contribution of iron oxides to the total dust composition. The global net (shortwave plus longwave) TOA DRE is estimated to be within −0.23 to +0.35 W m−2. Approximately 97 % of this range relates to uncertainty in the soil abundance of iron oxides. Representing iron oxide with solely hematite optical properties leads to an overestimati...
4. The Effect of Dust Evolution and Traps on Inner Disk Water Enrichment
4 jul 2023 · Substructures in protoplanetary disks can act as dust traps that shape the radial distribution of pebbles. By blocking the passage of pebbles, ...
Substructures in protoplanetary disks can act as dust traps that shape the radial distribution of pebbles. By blocking the passage of pebbles, the presence of gaps in disks may have a profound effect on pebble delivery into the inner disk, crucial for the formation of inner planets via pebble accretion. This process can also affect the delivery of volatiles (such as H$_2$O) and their abundance within the water snow line region (within a few au). In this study, we aim to understand what effect the presence of gaps in the outer gas disk may have on water vapor enrichment in the inner disk. Building on previous work, we employ a volatile-inclusive multi-Myr disk evolution model that considers an evolving ice-bearing drifting dust population, sensitive to dust-traps, which loses its icy content to sublimation upon reaching the snow line. We find that vapor abundance in the inner disk is strongly affected by fragmentation velocity (v$_{\rm f}$) and turbulence, which control how intense vapor enrichment from pebble delivery is, if present, and how long it may last. Generally, for disks with low to moderate turbulence ($α$ $\le$ 1 $\times$ 10$^{-3}$) and for a range of v$_{\rm f}$, radial location, and gap depth (especially that of the innermost gaps), can significantly alter enrichment. Shallow inner gaps may continuously leak material from beyond it, despite the presence of additional deep outer gaps. We finally find that the for realistic v$_{\rm f}$ ($\le$ 10 m s$^{-1}$), presen...
5. NASA-Cornell tool to give high-res view of atmospheric dust from space
19 mei 2022 · Scientists on Earth will soon see our planet's atmospheric dust sources in high-resolution, as a new state-of-the-art imaging spectrometer ...
Scientists on Earth will soon see our planet’s atmospheric dust sources in high-resolution, as a new state-of-the-art imaging spectrometer – developed
6. Cornell 14KPa Powerful Suction 5meter Corded Handheld Vacuum ...
It can capture dust as small as 0.3 microns while protecting the motor from overheating thanks to its high-quality seal and HEPA filtration. Suitable for ...
【14KPa Powerful Suction & 5m Long Cord 】
7. Cornell Dust Mite Vacuum Cleaner Corded - NTUC FairPrice
220-240V / 50/60Hz / 400W · HEPA H11 Filter · 4-Meter Cable Length · UV Light to Eliminate Microorganisms, Including Dust Mites & Bacteria · Easy Clean Dust ...
220-240V / 50/60Hz / 400W
HEPA H11 Filter
4-Meter Cable Length
UV Light to Eliminate Microorganisms, Including Dust Mites & Bacteria
Easy Clean Dust Collector
Easy One Button Operation
Safety Mark No. - 240536-11
Barcode - 955 5089 626661
Product Dimension – (L200 x W220 x 155H)mm/1.3kg
8. Post de Cornell University College of Agriculture and Life Sciences
28 jul 2022 · 1x. Playback Rate. Show Captions. Mute. Fullscreen. How rock dust battles climate change. 47 1 commentaire · J'aime Commenter. Partager. Copier
What if we didn't have to choose between people and the planet when developing solutions to address climate change? A Brooklyn, NY, urban gardens specialist is…
9. [2309.15288] Dust Properties of Comets Observed by Spitzer - arXiv
26 sep 2023 · Cornell University Logo. GO. quick links. Login · Help Pages · About. Astrophysics > Earth and Planetary Astrophysics. arXiv:2309.15288 (astro- ...
As comets journey into the inner solar system, they deliver particulates and volatile gases into their comae that reveal the most primitive materials in the solar system. Cometary dust particles provide crucial information for assessing the physico-chemical conditions in the outer disk from which they formed. Compared to the volatiles and soluble organics, the refractory dust particles are more robust and may be traceable to other small bodies. Using data from the Spitzer Heritage Archive, we present thermal dust models of 57 observations of 33 comets observed spectroscopically with the NASA Spitzer Space Telescope. This comet spectral survey offers the opportunity to study comets with data from the same instrument, reduced by the same methods, and fitted by the same thermal model using the same optical constants. The submicron dust tends to be dominated by amorphous carbon, and the submicron silicate mass tends to be dominated by amorphous silicate materials. We discuss the implications of these findings as they relate to Mg-rich crystalline silicates, which are high-temperature condensates, as well as to potential ion irradiation of amorphous Mg:Fe silicates prior to their incorporation into comets. These results impact our understandings of the protoplanetary disk conditions of planetesimal formation. Lastly, we cannot definitively conclude that a distinct difference exists in the dust composition between Oort cloud and Jupiter-family comet dynamical population as a whole.
10. Apollo 11 at 50: How parts of the moon landed at Cornell
18 jul 2019 · Retired Cornell University chemist Elizabeth Bilson was part of a team of researches who tested the lunar dust particles after Apollo 11.
Retired Cornell University chemist Elizabeth Bilson was part of a team of researches who tested the lunar dust particles after Apollo 11.
