Zobrazeno 1 - 10
of 126
pro vyhledávání: '"Ronald M. Welch"'
Autor:
Salvi Asefi, Thomas L. Sever, Robert O. Lawton, Deepak K. Ray, Ronald M. Welch, Daniel Irwin, J. Alan Pounds, Vani Starry Manoharan, Udaysankar S. Nair, Mark Mulligan
Publikováno v:
Journal of Applied Meteorology and Climatology. 47:2183-2197
This study details two unique methods to quantify cloud-immersion statistics for tropical montane cloud forests (TMCFs). The first technique uses a new algorithm for determining cloud-base height using Moderate Resolution Imaging Spectroradiometer (M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84702e492180d8caafb1df8a21f49614
https://doi.org/10.1175/2007jamc1819.1
https://doi.org/10.1175/2007jamc1819.1
Autor:
Qingyuan Han, Ronald M. Welch, Vani Starry Manoharan, Salvi Asefi, Deepak K. Ray, Robert O. Lawton, Udaysankar S. Nair, Jian Zeng
Publikováno v:
Journal of Applied Meteorology and Climatology. 47:960-975
Cloud-base heights over tropical montane cloud forests are determined using Moderate Resolution Imaging Spectroradiometer (MODIS) cloud products and National Centers for Environmental Prediction global tropospheric final analysis (FNL) fields. Cloud-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1cd9ca7a80672b90a19849dff502039e
https://doi.org/10.1175/2007jamc1668.1
https://doi.org/10.1175/2007jamc1668.1
Publikováno v:
Global and Planetary Change. 54:150-162
The proposed Mesoamerican Biological Corridor (MBC) is an ambitious effort to stem the erosion of biodiversity in one of the world's biologically richest regions. The intent is to connect large existing parks and reserves with new protected areas by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::592547eb0009b3e4a80703a0937a9bbc
https://doi.org/10.1016/j.gloplacha.2005.09.004
https://doi.org/10.1016/j.gloplacha.2005.09.004
Autor:
E.G. Dutton, Todd Berendes, Ronald M. Welch, Taneil Uttal, Eugene E. Clothiaux, D. A. Berendes
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 42:2584-2593
This paper compares daytime cloud fraction derived from the Moderate Resolution Imaging Spectrometer (MODIS), an imager on the National Aeronautics and Space Administration's Earth Observing System Aqua and Terra platforms, to observations from a sui
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e0a92eb2fb2a6fa873eee16e821ef36
https://doi.org/10.1109/tgrs.2004.835226
https://doi.org/10.1109/tgrs.2004.835226
Publikováno v:
Journal of the Atmospheric Sciences. 59:726-735
Estimates of the indirect aerosol effect in GCMs assume that either cloud liquid water path is constant (Twomey effect) or increases with increased droplet number concentration (drizzle-suppression or Albrecht effect). On the other hand, if cloud the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eef5405d70f24fa62cfac18a19273a79
https://doi.org/10.1175/1520-0469(2002)059<0726:tdbolw>2.0.co
https://doi.org/10.1175/1520-0469(2002)059<0726:tdbolw>2.0.co
Publikováno v:
Journal of Applied Meteorology. 39:2278-2291
Using a new angular distribution model (ADM) for smoke aerosols, the instantaneous top-of-atmosphere (TOA) shortwave aerosol radiative forcing (SWARF) is calculated for selected days over biomass-burning regions in South America. The visible and infr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7902ff8362533704070a052d499183e8
https://doi.org/10.1175/1520-0450(2001)040<2278:eosdrf>2.0.co
https://doi.org/10.1175/1520-0450(2001)040<2278:eosdrf>2.0.co
Publikováno v:
Geophysical Research Letters. 27:3221-3224
A new parameter, cloud column susceptibility, is introduced to study the aerosol indirect effect. There are several advantages of this new parameter in comparison with the traditional cloud susceptibility. First, no assumptions about constant liquid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d57d96d2d23f72b2749d932e4714c9ca
https://doi.org/10.1029/2000gl011543
https://doi.org/10.1029/2000gl011543
Autor:
Sundar A. Christopher, Brent N. Holben, Peter V. Hobbs, Xiang Li, Jeffrey S. Reid, Thomas F. Eck, Ronald M. Welch
Publikováno v:
Journal of Applied Meteorology. 39:1742-1753
Using in situ measurements of aerosol optical properties and ground-based measurements of aerosol optical thickness (τs) during the Smoke, Clouds and Radiation—Brazil (SCAR-B) experiment, a four-stream broadband radiative transfer model is used to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1684579c208475c68a6248d5c065a1c
https://doi.org/10.1175/1520-0450-39.10.1742
https://doi.org/10.1175/1520-0450-39.10.1742
Publikováno v:
Geophysical Research Letters. 27:2197-2200
Using collocated data from the Visible Infrared Scanner (VIRS) and the Clouds and the Earth's Radiant Energy Budget Scanner (CERES) from the Tropical Rainfall Measuring (TRMM) satellite, observational estimates of the instantaneous Shortwave Aerosol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d91b2669ecac1cad050cb477673070d8
https://doi.org/10.1029/1999gl010923
https://doi.org/10.1029/1999gl010923
Publikováno v:
Journal of Quantitative Spectroscopy and Radiative Transfer. 63:559-583
This study investigates the effects of non-sphericity on satellite retrievals of ice-cloud properties including optical thickness and particle sizes. Ray-tracing technique is used to calculate single scattering phase function and single scattering al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a417420364031a86c6b2673a1a4b13e2
https://doi.org/10.1016/s0022-4073(99)00039-4
https://doi.org/10.1016/s0022-4073(99)00039-4