A5070114330- Atmospheric aerosols and clouds
- Arctic and Antarctic ice dynamics
- Cryospheric studies and observations
- Meteorological Phenomena and Simulations
- Climate variability and models
- Land Use and Ecosystem Services
- Fluid Dynamics and Turbulent Flows
- Computational Fluid Dynamics and Aerodynamics
- Hydrology and Watershed Management Studies
- Atmospheric chemistry and aerosols
- Tree-ring climate responses
- Species Distribution and Climate Change
- Water resources management and optimization
- Precipitation Measurement and Analysis
- Atmospheric Ozone and Climate
- Flood Risk Assessment and Management
- Climate change and permafrost
- Atmospheric and Environmental Gas Dynamics
- Plant Water Relations and Carbon Dynamics
- Conservation, Biodiversity, and Resource Management
- Solar Radiation and Photovoltaics
- Advanced Numerical Methods in Computational Mathematics
- Wildlife-Road Interactions and Conservation
China University of Geosciences
2024
University of Maryland, College Park
2021
Johns Hopkins University Applied Physics Laboratory
2014-2019
University of Washington
2008-2019
China University of Geosciences (Beijing)
2010
Virginia Tech
2005-2007
icepyx is both a software library and community composed of ICESat-2 (NASA satellite) data users, developers, maintainers, the scientific community.We are working together to develop shared resources -including existing resources, new code, tutorials, use-cases/examples -that simplify process querying, obtaining, analyzing, manipulating datasets enable discovery.
Cloud response to synoptic conditions over the Beaufort and Chukchi seasonal ice zone is examined. Four states with distinct thermodynamic dynamic signatures are identified using ERA-Interim reanalysis data from 2000 2014. CloudSat CALIPSO observations suggest control of clouds by states. Warm continental air advection associated fewest low-level clouds, while cold generates most clouds. Low-level related lower-tropospheric stability both regulated conditions. High-level humidity vertical...
Abstract This paper discusses several aspects related to the consistency of discrete adjoints upwind numerical schemes. Both linear (finite differences, finite volumes) and nonlinear (slope flux‐limited) discretizations one‐dimensional advection equation are considered. The analysis is focused on uniform meshes explicit We show that may lose near points where upwinding changes, inflow boundaries another scheme employed, locations slope/flux limiter active in forward simulation. Numerical...
Millimeter‐wavelength cloud radar (MMCR) can provide information on the vertical structure of fields and thereby improve our understanding spatial distribution clouds their role in climate system. Here we consider representativeness ground‐based vertically pointing MMCR observations, which have been used numerous studies. statistics collected at Darwin, Australia, are compared against CloudSat (spaceborne) observations gathered near vicinity ground site. Overall, total occurrence profiles...
High vertical resolution profiles of cloud properties were obtained from radars operated by the Atmospheric Radiation Measurement (ARM) program on islands Nauru and Manus in Tropical Western Pacific (TWP). Broadband flux calculations using a correlated k ‐distribution model performed to estimate effect clouds total column distribution shortwave absorption at these tropical sites. Sensitivity studies examine role precipitable water vapor, location, optical depth, particle size (SW)...
Abstract The authors use the Polar Weather Research and Forecasting (WRF) Model to simulate atmospheric conditions during Seasonal Ice Zone Reconnaissance Survey (SIZRS) in summer of 2013 over Beaufort Sea. With SIZRS dropsonde data, performance WRF simulations two forcing datasets is evaluated: Interim ECMWF Re-Analysis (ERA-Interim) Global Forecast System (GFS) analysis. General features observed mean profiles, such as low-level temperature inversion, jet (LLJ), specific humidity inversion...
Abstract. The Köppen-Geiger climate classification scheme provides an effective and ecologically meaningful way to characterize climatic conditions has been widely applied in change studies. maps currently available are limited by relatively low spatial resolution, poor accuracy, noncomparable time periods. Comprehensive assessment of impacts requires a more accurate depiction fine-grained continuous long-term coverage. Here, we present series improved 1-km for ten historical periods...
Land use conflicts exacerbate soil erosion and reduce biodiversity, which is detrimental to sustainable development. Multiple methods such as multi-criteria evaluation landscape pattern indexes can identify land conflicts, but few studies conform the concept of green The development gives priority ecological protection coordinates relationship between production development, food achieve Taking Jinan City (China) study area, we identified source areas by evaluating importance ecosystem...
Abstract Low‐level wind jets (LLJs) and strong surface winds are frequently observed near the sea ice edge in presence of thermal contrast between open water ice. Two LLJ cases Beaufort Sea examined using dropsonde observations made from Seasonal Ice Zone Reconnaissance Survey flights. Ensembles Polar Weather Research Forecast simulations with without demonstrate contribution to boundary layer structure, LLJ, jets. Because temperature only influences lower most hundreds meters atmospheric...
Abstract In this study, we evaluate high‐level clouds in a cloud resolving model during two convective cases, ARM9707 and KWAJEX. The simulated joint histograms of occurrence radar reflectivity compare well with satellite observations when using two‐moment microphysics scheme. However, simulations performed single moment microphysical scheme exhibit low biases approximately 20 dB. During events, overestimate the amount one‐moment precipitate too readily underestimate height cloud. For...