Ships producing tracks in the atmosphere are identified and their surface meteorological parameters are specified. Thirteen case studies are presented with satellite imagery, synoptic discussion and surface meteorological parameters. A composite \"environment\" is derived from reported surface meteorological parameters and is compared with climatological conditions of the region, showing that significant departures from normal conditions do not occur. No clear generation mechanism is...
Topics: Meteorology, Surface meteorological parameters, Remote sensing, Ship tracks
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Mar 21, 2020
03/20
Mar 21, 2020
by
ACI Avances en Ciencias e Ingenierías
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Adaptación de una variedad heterogénea de maíz a la región Alto Andina, usando la selección mazorca – hilera modificada Adaptation of a heterogeneous maize variety to the Andean region, using the modified ear to row selection Manuel de la Cruz Díaz*, Ricardo Sevilla Panizo *Autor para Correspondencia / Corresponding Author, e-mail: manudcd@hotmail.com DOI: https://doi.org/10.18272/aci.v11i1.1148 Editado por / Edited by: Gabriela Albán Recibido / Received: 2018/06/22 Aceptado /...
Topics: Cold tolerance, Foreign germplasm, Gain of selection, Meteorological parameters, Selection cycles.
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May 17, 2019
05/19
May 17, 2019
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Anaerobic co-digestion of cassava waste water (CWW) and abdominal cow dung (ACD)in different proportions was studied in five treatments under changing meteorological conditions. The five treatment cases T1: 100% CWW; T2: 100% ACD; T3: 90%CWW +10%ACD; T4:70%CWW+30%ACD; T5: 50%CWW+50%ACD were digested under anaerobic conditions in model batch, metallic bio digesters of same working volume (32.0 liters) for 30 days retention period. Results indicated that T2 system flamed on the 20th day, T5 on...
Topics: Cassava Wastewater, Abdominal Cow Dung, Ambient Temperature, Daily Biogas Production, Cumulative...
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Jan 14, 2019
01/19
Jan 14, 2019
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Munn, R. E
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xi, 336 pages 24 cm
Topics: {u'11': u'Climat', u'10': u'Bioclimatologie', u'13': u'Atmosphere', u'12': u'Effets des conditions...
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Jul 31, 2017
07/17
Jul 31, 2017
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Smith, R.E
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Includes references
Topics: pollution, pollutants, hydrology, simulation models, water flow, meteorological parameters, growth...
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Mar 31, 2017
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Mar 31, 2017
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Impact Journals
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ABSTRACT During the month of January 2017, the region of São José dos Campos, SP, Brazil, was affected by abnormal rainfalls of twice the historical average recorded in this place. However in the month of February of 2017 this same region suffered very high temperatures and very low presence of rains. In that period the intensity of natural γ- radiation between 200 keV-10.0 MeV at a fixed altitude of 25 meters above the ground with a sampling intervals of 1 minute. In the same place was...
Topics: KEYWORDS: Rainfall, Gamma Radiation, Meteorological Parameters
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Dec 2, 2016
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Dec 2, 2016
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Impact Journals
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Groundwater storage becomes an important phenomenon in the current century throughout the entire globe. Basically, groundwater is the water stored deep beneath the earth's surface in underground aquifers and it is less vulnerable to pollution than surface water. Thus, it is an essential source for drinking water. But today, severe decline in water table due to anthropogenic activities becomes a critical problem particularly in the metropolitan cities with high population density. This water...
Topics: FAO56 Penman-Monteith Method, Groundwater Storage, Meteorological Parameters, Rainwater Harvesting,...
The National Aeronautics and Space Administration conducted a series of wake vortex field experiments at Denver in 2003, 2005, and 2006. This paper describes the lidar wake vortex measurements and associated meteorological data collected during the 2006 deployment, and includes results of recent reprocessing of the lidar data using a new wake vortex algorithm and estimates of the atmospheric turbulence using a new algorithm to estimate eddy dissipation rate from the lidar data. The...
Topics: NASA Technical Reports Server (NTRS), AIRCRAFT WAKES, VORTICES, WIND DIRECTION, TURBULENCE MODELS,...
This presentation discusses the processes from data collection and processing to analysis involved in unraveling patterns between disease outbreaks and the surrounding environment and meteorological conditions. We used these patterns to estimate when and where disease outbreaks will occur. As a case study, we will present our work on assessing the relationship between meteorological conditions and influenza in Central America. Our work represents the discovery, prescriptive and predictive...
Topics: NASA Technical Reports Server (NTRS), CENTRAL AMERICA, INFLUENZA, EARTH OBSERVATIONS (FROM SPACE),...
The NASA Airborne Tropical TRopopause EXperiment (ATTREX) is a series of airborne campaigns focused on understanding physical processes in the Tropical Tropopause Layer (TTL) and their role in atmospheric chemistry and climate. ATTREX is using the high-altitude, long-duration NASA Global Hawk Unmanned Air System to make in situ and remote-sensing measurements spanning the Pacific. A particular ATTREX emphasis is to better understand the dehydration of air as it passes through the cold tropical...
Topics: NASA Technical Reports Server (NTRS), TROPICAL REGIONS, TROPICAL METEOROLOGY, TROPOPAUSE,...
Extratropical cyclones contribute most of the precipitation in the midlatitudes, i.e. up to 70 during winter in the northern hemisphere, and can generate flooding, extreme winds, blizzards and have large socio-economic impacts. As such, it is important that general circulation models (GCMs) accurately represent these systems so their evolution in a warming climate can be understood. However, there are still uncertainties on whether warming will increase their frequency of occurrence, their...
Topics: NASA Technical Reports Server (NTRS), SATELLITE CONSTELLATIONS, SATELLITE OBSERVATION, CLIMATE...
We examine satellite-based measurements of chlorophyll solar-induced fluorescence (SIF) over the region impacted by the Russian drought and heat wave of 2010. Like the popular Normalized Difference Vegetation Index (NDVI) that has been used for decades to measure photosynthetic capacity, SIF measurements are sensitive to the fraction of absorbed photosynthetically-active radiation (fPAR). However, in addition, SIF is sensitive to the fluorescence yield that is related to the photosynthetic...
Topics: NASA Technical Reports Server (NTRS), DROUGHT, SATELLITE OBSERVATION, CHLOROPHYLLS, FLUORESCENCE,...
GLDAS-2.0 data have been reprocessed with updated Princeton meteorological forcing data within the Land Information System (LIS) Version 7, and temporal coverage have been extended to 1948-2012.Global Land Data Assimilation System Version 2 (GLDAS-2) has two components: GLDAS-2.0: entirely forced with the Princeton meteorological forcing data GLDAS-2.1: forced with atmospheric analysis and observation-based data after 2001In order to create more climatologically consistent data sets, NASA...
Topics: NASA Technical Reports Server (NTRS), METEOROLOGICAL PARAMETERS, LAND MANAGEMENT, HYDROLOGY,...
No abstract available
Topics: NASA Technical Reports Server (NTRS), METEOROLOGICAL PARAMETERS, HEAT TOLERANCE, HIGH TEMPERATURE...
No abstract available
Topics: NASA Technical Reports Server (NTRS), CREW EXPLORATION VEHICLE, SPACECRAFT DESIGN, SPACECRAFT...
This document describes the gridded output files produced by the Goddard Earth Observing System version 5 (GEOS-5) Goddard Aerosol Assimilation System (GAAS) from July 2002 through December 2014. The MERRA Aerosol Reanalysis (MERRAero) is produced with the hydrostatic version of the GEOS-5 Atmospheric Global Climate Model (AGCM). In addition to standard meteorological parameters (wind, temperature, moisture, surface pressure), this simulation includes 15 aerosol tracers (dust, sea-salt,...
Topics: NASA Technical Reports Server (NTRS), AEROSOLS, MODIS (RADIOMETRY), METEOROLOGICAL PARAMETERS,...
The Alpha Jet Atmospheric eXperiment (AJAX) has been measuring atmospheric ozone, carbon dioxide, methane and meteorological parameters from near the surface to 8000 m since January 2011. The main goals are to study photochemical ozone production and the impacts of extreme events on western US air quality, provide data to support satellite observations and aid in the quantification of emission sources e.g. wildfires, urban outflow, diary and oil and gas. The aircraft is based at Moffett Field...
Topics: NASA Technical Reports Server (NTRS), ATMOSPHERIC COMPOSITION, OZONE, CARBON DIOXIDE, METHANE, GAS...
The second Modern-Era Retrospective analysis for Research and Applications (MERRA-2) is a NASA atmospheric reanalysis that begins in 1980. It replaces the original MERRA reanalysis (Rienecker et al., 2011) using an upgraded version of the Goddard Earth Observing System Model, Version 5 (GEOS-5) data assimilation system. The file collections for MERRA-2 are described in detail in this document, including some important changes from those of the MERRA dataset (Lucchesi, 2012).
Topics: NASA Technical Reports Server (NTRS), DATA SYSTEMS, EARTH OBSERVING SYSTEM (EOS), EARTH SURFACE,...
The objectives of the Superboom Caustic Analysis and Measurement (SCAMP) Program were to develop and validate, via flight-test measurements, analytical models for sonic boom signatures in and around focal zones as they are expected to occur during commercial aircraft transition from subsonic to supersonic flight, and to apply these models to focus boom prediction of low-boom aircraft designs. The SCAMP program has successfully investigated sonic boom focusing both analytically and...
Topics: NASA Technical Reports Server (NTRS), COMMERCIAL AIRCRAFT, FLIGHT INSTRUMENTS, IN-FLIGHT...
No abstract available
Topics: NASA Technical Reports Server (NTRS), RANGES (FACILITIES), REFERENCE ATMOSPHERES, DATA PROCESSING,...
A warm frontal precipitation band developed over a few hours 50-100 km to the north of a surface warm front. The 3-km WRF was able to realistically simulate band development, although the model is somewhat too weak. Band genesis was associated with weak frontogenesis (deformation) in the presence of weak potential and conditional instability feeding into the band region, while it was closer to moist neutral within the band. As the band matured, frontogenesis increased, while the stability...
Topics: NASA Technical Reports Server (NTRS), FRONTS (METEOROLOGY), WARM FRONTS, METEOROLOGY,...
No abstract available
Topics: NASA Technical Reports Server (NTRS), AEROSPACE ENVIRONMENTS, METEOROLOGICAL PARAMETERS, RISK,...
Increasing our understanding of the Earth-atmosphere system has been a scientific and political priority for the last few decades. This system not only touches on environmental science, but it has applicability to our broader understanding of planetary atmospheres in general. While this issue focuses primarily on electromagnetics, other fundamental fields of science, including fluid and thermodynamics play major roles. In recent years, significant research efforts have led to advances in the...
Topics: NASA Technical Reports Server (NTRS), AEROSOLS, REMOTE SENSING, ATMOSPHERIC CHEMISTRY,...
Mesoscale weather conditions can have an adverse effect on space launch, landing, ground processing, and weather advisories, watches, and warnings at the Eastern Range (ER) in Florida and Wallops Flight Facility (WFF) in Virginia. During summer, land-sea interactions across Kennedy Space Center (KSC) and Cape Canaveral Air Force Station (CCAFS) lead to sea breeze front formation, which can spawn deep convection that can hinder operations and endanger personnel and resources. Many other weak...
Topics: NASA Technical Reports Server (NTRS), METEOROLOGICAL PARAMETERS, HIGH RESOLUTION, WALLOPS ISLAND,...
A new tool has been developed for the National Weather Service (NWS) Advanced Weather Interactive Processing System (AWIPS) II through collaboration between NASA's Short-term Prediction Research and Transition (SPoRT) and the NWS Meteorological Development Laboratory (MDL). Referred to as the "Tracking Meteogram", the tool aids NWS forecasters in assessing meteorological parameters associated with moving phenomena. The tool aids forecasters in severe weather situations by providing...
Topics: NASA Technical Reports Server (NTRS), TIME SERIES ANALYSIS, TRENDS, TRACKING (POSITION), AUTOMATIC...
The detection of clouds in satellite imagery has a number of important applications in weather and climate studies. The presence of clouds can alter the energy budget of the Earth-atmosphere system through scattering and absorption of shortwave radiation and the absorption and re-emission of infrared radiation at longer wavelengths. The scattering and absorption characteristics of clouds vary with the microphysical properties of clouds, hence the cloud type. Thus, detecting the presence of...
Topics: NASA Technical Reports Server (NTRS), CLOUDS (METEOROLOGY), DETECTION, IMAGING SPECTROMETERS,...
Land surface models are important components of numerical weather prediction (NWP) models, partitioning incoming energy into latent and sensitive heat fluxes that affect boundary layer growth and destabilization. During warm-season months, diurnal heating and convective initiation depend strongly on evapotranspiration and available boundary layer moisture, which are substantially affected by soil moisture content. Therefore, to properly simulate warm-season processes in NWP models, an accurate...
Topics: NASA Technical Reports Server (NTRS), SOIL MOISTURE, OCEANOGRAPHIC PARAMETERS, ASSIMILATION,...
NASA's Launch Services Program, Ground Systems Development and Operations, Space Launch System and other programs at Kennedy Space Center (KSC) and Cape Canaveral Air Force Station (CCAFS) use the daily and weekly weather forecasts issued by the 45th Weather Squadron (45 WS) as decision tools for their day-to-day and launch operations on the Eastern Range (ER). Examples include determining if they need to limit activities such as vehicle transport to the launch pad, protect people, structures...
Topics: NASA Technical Reports Server (NTRS), SPACECRAFT LAUNCHING, SYSTEMS ENGINEERING, SCHEDULING, REAL...
No abstract available
Topics: NASA Technical Reports Server (NTRS), TRMM SATELLITE, LIGHTNING, CLIMATOLOGY, DIURNAL VARIATIONS,...
The NASA Airborne Tropical TRopopause EXperiment (ATTREX) is a series of airborne campaigns focused on understanding physical processes in the Tropical Tropopause Layer (TTL) and their role in atmospheric chemistry and climate. ATTREX is using the high-altitude, long-duration NASA Global Hawk Unmanned Air System to make in situ and remote-sensing measurements spanning the Pacific. A particular ATIREX emphasis is to better understand the dehydration of air as it passes through the cold tropical...
Topics: NASA Technical Reports Server (NTRS), ATMOSPHERIC CHEMISTRY, CHEMICAL COMPOSITION, IN SITU...
The NASA Airborne Tropical TRopopause EXperiment (ATTREX) is a series of airborne campaigns focused on understanding physical processes in the Tropical Tropopause Layer (TTL) and their role in atmospheric chemistry and climate. ATTREX is using the high-altitude, long-duration NASA Global Hawk Unmanned Air System to make in situ and remote-sensing measurements spanning the Pacific. A particular ATTREX emphasis is to better understand the dehydration of air as it passes through the cold tropical...
Topics: NASA Technical Reports Server (NTRS), TROPOPAUSE, TROPICAL REGIONS, ATMOSPHERIC CHEMISTRY, GUAM,...
The Multilayer Model (MLM) has been used for many years to infer dry deposition fluxes from measured trace species concentrations and standard meteorological measurements for national networks in the U.S., including the U.S. Environmental Protection Agency's Clean Air Status and Trends Network (CASTNet). MLM utilizes a resistance analogy to calculate deposition velocities appropriate for whole vegetative canopies, while employing a multilayer integration to account for vertically varying...
Topics: NASA Technical Reports Server (NTRS), DRYING, DEPOSITION, AIR QUALITY, TRACE ELEMENTS, ENVIRONMENT...
While the ability of land surface conditions to influence the atmosphere has been demonstrated in various modeling and observational studies, the precise mechanisms by which land-atmosphere feedback occurs are still largely unknown particularly the mechanisms that allow land moisture state in one region to affect atmospheric conditions in another. Such remote impacts are examined here in the context of atmospheric general circulation model (AGCM) simulations, leading to the identification of...
Topics: NASA Technical Reports Server (NTRS), SOIL MOISTURE, ATMOSPHERIC GENERAL CIRCULATION MODELS, EARTH...
The MERRA Aerosol Reanalysis (MERRAero) has been recently developed at NASA's Global Modeling Assimilation Office. This reanalysis is based on a version of the Goddard Earth Observing System-5 (GEOS-5) model radiatively coupled with Goddard Chemistry, Aerosol, Radiation, and Transport aerosols, and it includes assimilation of bias-corrected aerosol optical thickness (AOT) from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor on both Terra and Aqua satellites. In October over the...
Topics: NASA Technical Reports Server (NTRS), AEROSOLS, MODIS (RADIOMETRY), METEOROLOGICAL PARAMETERS,...
The NASA Giovanni data analysis system has been recognized as a useful tool to access and analyze many different types of remote sensing data. The variety of environmental data types has allowed the use of Giovanni for different application areas, such as agriculture, hydrology, and air quality research. The use of Giovanni for researching connections between public health issues and Earths environment and climate, potentially exacerbated by anthropogenic influence, has been increasingly...
Topics: NASA Technical Reports Server (NTRS), REMOTE SENSING, PUBLIC HEALTH, INFLUENZA, WEATHER, DATA...
The central Andes extends from 7 deg to 21 deg S, with its eastern boundary defined by elevation (1000m and greater) and its western boundary by the coastline. The authors used a combination of surface observations, reanalysis, and the University of Utah Tropical Rainfall Measuring Mission (TRMM) precipitation features (PF) database to understand the characteristics of convective systems and associated rainfall in the central Andes during the TRMM era, 1998-2012. Compared to other dry (West...
Topics: NASA Technical Reports Server (NTRS), ANDES MOUNTAINS (SOUTH AMERICA), TROPICAL REGIONS, RAIN,...
Atmospheric pollution over South Asia attracts special attention due to its effects on regional climate, the water cycle, and human health. These effects are potentially growing owing to rising trends of anthropogenic aerosol emissions found there. However, it has been proved quite challenging to adequately represent the aerosol spatial distribution and magnitude over this critical region in global models (Pan et al. 2014), with the surface concentrations, aerosol optical depth (AOD), and...
Topics: NASA Technical Reports Server (NTRS), AEROSOLS, SIMULATION, ASIA, CLIMATE, AIR QUALITY, AIR...
No abstract available
Topics: NASA Technical Reports Server (NTRS), AEROSOLS, MESOSCALE PHENOMENA, ATMOSPHERIC GENERAL...
This document describes the gridded output files produced by a two-year global, non-hydrostatic mesoscale simulation for the period 2005-2006 produced with the non-hydrostatic version of GEOS-5 Atmospheric Global Climate Model (AGCM). In addition to standard meteorological parameters (wind, temperature, moisture, surface pressure), this simulation includes 15 aerosol tracers (dust, sea-salt, sulfate, black and organic carbon), O3, CO and CO2. This model simulation is driven by prescribed...
Topics: NASA Technical Reports Server (NTRS), EARTH OBSERVING SYSTEM (EOS), EOS DATA AND INFORMATION...
Large-scale models such as GEOS-5 typically calculate grid-scale fractional cloudiness through a PDF parameterization of the sub-gridscale distribution of specific humidity. The GEOS-5 moisture routine uses a simple rectangular PDF varying in height that follows a tanh profile. While below 10 km this profile is informed by moisture information from the AIRS instrument, there is relatively little empirical basis for the profile above that level. ATTREX provides an opportunity to refine the...
Topics: NASA Technical Reports Server (NTRS), TROPICAL REGIONS, TROPOPAUSE, WATER VAPOR, VARIABILITY,...
The Modern-Era Retrospective Analysis for Research and Applications-2 (MERRA2) version of the GEOS-5 (Goddard Earth Observing System Model - 5) Atmospheric General Circulation Model (AGCM) is currently in use in the NASA Global Modeling and Assimilation Office (GMAO) at a wide range of resolutions for a variety of applications. Details of the changes in parameterizations subsequent to the version in the original MERRA reanalysis are presented here. Results of a series of atmosphere-only...
Topics: NASA Technical Reports Server (NTRS), ATMOSPHERIC GENERAL CIRCULATION MODELS, METEOROLOGICAL...
The 2013 SST anomalies produced a predilection for California drought, whereas the long-term warming trend appears to make no appreciable contribution because of the counteraction between its dynamical and thermodynamic effects.
Topics: NASA Technical Reports Server (NTRS), CALIFORNIA, DROUGHT, CLIMATE, CLIMATOLOGY, INTRASEASONAL...
No abstract available
Topics: NASA Technical Reports Server (NTRS), AEROSOLS, ATMOSPHERIC MODELS, MODIS (RADIOMETRY), ALGORITHMS,...
Atmospheric measurements from the Arctic Summer Cloud Ocean Study (ASCOS) are used to evaluate the performance of three atmospheric reanalyses (European Centre for Medium Range Weather Forecasting (ECMWF)- Interim reanalysis, National Center for Environmental Prediction (NCEP)-National Center for Atmospheric Research (NCAR) reanalysis, and NCEP-DOE (Department of Energy) reanalysis) and two global climate models (CAM5 (Community Atmosphere Model 5) and NASA GISS (Goddard Institute for Space...
Topics: NASA Technical Reports Server (NTRS), METEOROLOGY, CLOUD PHYSICS, CLIMATE MODELS, ATMOSPHERIC...
The first of a new generation of microwave sounders was launched aboard the Suomi-National Polar-Orbiting Partnership satellite in October 2011. The Advanced Technology Microwave Sounder (ATMS) combines the capabilities and channel sets of three predecessor sounders into a single package to provide information on the atmospheric vertical temperature and moisture profiles that are the most critical observations needed for numerical weather forecast models. Enhancements include size/mass/power...
Topics: NASA Technical Reports Server (NTRS), PERFORMANCE TESTS, EVALUATION, PRELAUNCH TESTS, NUMERICAL...
The use of satellite-based aerosol optical depth (AOD) to estimate fine particulate matter PM(sub 2.5) for epidemiology studies has increased substantially over the past few years. These recent studies often report moderate predictive power, which can generate downward bias in effect estimates. In addition, AOD measurements have only moderate spatial resolution, and have substantial missing data. We make use of recent advances in MODIS satellite data processing algorithms (Multi-Angle...
Topics: NASA Technical Reports Server (NTRS), AEROSOLS, OPTICAL THICKNESS, HIGH RESOLUTION, PARTICULATES,...
At end of the 2012 hurricane season the National Hurricane Center retired the original HURDAT dataset and replaced it with the newer version HURDAT2, which reformatted the original data and included additional information, in particular, estimates of the 34-, 50, and 64-kt wind radii for the interval 2004-2013. During the brief 10-year interval, some 164 tropical cyclones are noted to have formed in the North Atlantic basin, with 77 becoming hurricanes. Hurricane Sandy (2012) stands out as...
Topics: NASA Technical Reports Server (NTRS), CYCLONES, HURRICANES, CLIMATOLOGY, DATA SYSTEMS, RADII, WIND...
Top-down estimates of the spatiotemporal variations in emissions and uptake of CO2 will benefit from the increasing measurement density brought by recent and future additions to the suite of in situ and remote CO2 measurement platforms. In particular, the planned NASA Active Sensing of CO2 Emissions over Nights, Days, and Seasons (ASCENDS) satellite mission will provide greater coverage in cloudy regions, at high latitudes, and at night than passive satellite systems, as well as high precision...
Topics: NASA Technical Reports Server (NTRS), CARBON DIOXIDE CONCENTRATION, ATMOSPHERIC CIRCULATION,...
This Technical Publication (TP) is part 2 of a two-part study of the North Atlantic basin tropical cyclones that occurred during the weather satellite era, 1960-2013. In particular, this TP examines the inferred statistical relationships between 25 tropical cyclone parameters and 9 specific climate-related factors, including the (1) Oceanic Niño Index (ONI), (2) Southern Oscillation Index (SOI), (3) Atlantic Multidecadal Oscillation (AMO) index, (4) Quasi-Biennial Oscillation (QBO) index, (5)...
Topics: NASA Technical Reports Server (NTRS), TROPICAL STORMS, ATLANTIC OCEAN, CLIMATE, NORTHERN...
Officially, the North Atlantic basin tropical cyclone season runs from June 1 through November 30 of each year. During this 183-day interval, the vast majority of tropical cyclone onsets are found to occur. For example, in a study of the 715 tropical cyclones that occurred in the North Atlantic basin during the interval 1945-2010, it was found that about 97 percent of them had their onsets during the conventional hurricane season, with the bulk (78 percent) having had onset during the late...
Topics: NASA Technical Reports Server (NTRS), TROPICAL STORMS, HURRICANES, GLOBAL WARMING, ATLANTIC OCEAN,...
