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  • 1
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    Investigation of water vapor motion winds from geostationary satellites (1994)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Water vapor imagery from geostationary satellites has been available for over a decade. These data are used extensively by operational analysts and forecasters, mainly in a qualitative mode (Weldon and Holmes 1991). In addition to qualitative applications, motions deduced in animated water vapor imagery can be used to infer wind fields in cloudless regimes, thereby augmenting the information provided by cloud-drift wind vectors. Early attempts at quantifying the data by tracking features in water vapor imagery met with modest success (Stewart et al. 1985; Hayden and Stewart 1987). More recently, automated techniques have been developed and refined, and have resulted in upper-level wind observations comparable in quality to current operational cloud-tracked winds (Laurent 1993). In a recent study by Velden et al. (1993) it was demonstrated that wind sets derived from Meteosat-3 (M-3) water vapor imagery can provide important environmental wind information in data void areas surrounding tropical cyclones, and can positively impact objective track forecasts. M-3 was repositioned to 75W by the European Space Agency in 1992 in order to provide complete coverage of the Atlantic Ocean. Data from this satellite are being transmitted to the U.S. for operational use. Compared with the current GOES-7 (G-7) satellite (positioned near 112W), the M-3 water vapor channel contains a superior horizontal resolution (5 km vs. 16 km ). In this paper, we examine wind sets derived using automated procedures from both GOES-7 and Meteosat-3 full disk water vapor imagery in order to assess this data as a potentially important source of large-scale wind information. As part of a product demonstration wind sets were produced twice a day at CIMSS during a six-week period in March and April (1994). These data sets are assessed in terms of geographic coverage, statistical accuracy, and meteorological impact through preliminary results of numerical model forecast studies.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: NASA-CR-199773 , NAS 1.26:199773 , NIPS-95-06428 , AMS Conference on Satellite Meteorology; Jun 01, 1994; Monterey, CA; United States
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  • 2
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    Warum sollte ich meine Mietimmobilie energetisch sanieren? : Analyse und Multi-Level-Governance quartiersbezogener und individueller Rahmenbedingungen zur Steigerung der energetischen Sanierungstätigkeit privater Kleinvermieter (2019)
    Details
    Publication Date: 2019-12-16
    Description: Die Dekarbonisierung des deutschen Wohngebäudebestandes stellt einen wichtigen Baustein zum Gelingen der Energiewende dar. Politisches Ziel ist ein "nahezu klima-neutraler" Gebäudebestand bis 2050. Trotz Erfolgen in der Vergangenheit und eines umfangreichen Policy-Mix verbleibt die energetische Sanierungstätigkeit sowohl hinichtlich der Sanierungstiefe als auch der Sanierungsbreite unterhalb des politisch geforderten und ökologisch notwendigen Maßes. Die Arbeit widmet sich daher der Frage, unter welchen individuellen und quartiersbezogenen Rahmenbedingungen Immobilieneigentümer energetische Sanierungsmaßnahmen durchführen und wie die energetische Sanierungstätigkeit durch Multi-Level-Governance gesteigert werden kann. Die Analyse erfolgt fallstudienbasiert für die Eigentümergruppe der privaten Kleinvermieter, die rund 37 Prozent des deutschen Wohnungsbestandes bewirtschaften. Anhand eines mixed method-Ansatzes wird zunächst durch problemzentrierte Interviews ein Modell zur Beschreibung des Investitionsentscheidungsprozesses entwickelt, was anschließend durch eine schriftlich-postalische Befragung und ihre regressions-analytische Auswertung bewertet wird. Durch die Triangulation können förderliche und hemmende Einflussfaktoren identifiziert werden. Aufbauend auf den theoretischen Vorüberlegungen sowie den empirischen Ergebnissen werden anschließend politische Handlungsempfehlungen abgeleitet.
    Keywords: ddc:330
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: German
    Type: doctoralthesis , doc-type:doctoralThesis
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  • 3
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    Kommunale Abfallwirtschaft als Energiewendeakteur (2013)
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    Publication Date: 2022-02-18
    Description: Durch einen deutlichen Anstieg der getrennten Erfassung und Verwertung sowie durch Abfallvermeidung und effizientere Methoden zur Abfallbehandlung und -beseitigung konnten bislang etwa 28 Mio. t CO2 reduziert werden. Der vorliegende Beitrag zeigt, welche Handlungspotenziale und -strategien die kommunale Abfallwirtschaft hat, um aufbauend auf den bisherigen Erfolgen einen weiteren Beitrag zur Energiewende in Deutschland zu leisten. Außerdem wird gezeigt, welche Synergien und Kooperationsmöglichkeiten mit anderen kommunalen Spartenunternehmen bestehen, um abfall- und energiebedingte CO2-Emissionen zu vermeiden.
    Keywords: ddc:330
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: German
    Type: article , doc-type:article
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  • 4
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    The changing utility industry and opportunities to improve energy efficiency : insights from the U.S., Germany and Australia (2015)
    Stockholm : Europ. Council for an Energy Efficient Economy
    Details
    Publication Date: 2022-02-18
    Description: The electric utility sector in Australia, Germany and the U.S. are all going through major changes driven by declining sales, increasing use of distributed energy sources and policy responses to global climate change. This paper discusses efforts in each of these countries to reform their electric industries, address climate change and promote energy efficiency. Going forward, we see a role for government, utilities and private market energy efficiency efforts in all three countries, although the emphasis will vary by country and will evolve over time. Where all three parties can work together with a common vision, reform efforts are likely to be more successful and more sustained. In all three countries the future is uncertain. In the face of this uncertainty, energy efficiency supporters need to keep abreast of these changes, and find more flexible and nimble policy strategies for energy efficiency to prosper, as the future is likely to unfold in unexpected ways.
    Keywords: ddc:330
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
    Type: conferenceobject , doc-type:conferenceObject
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  • 5
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    Kommunale Abfallwirtschaft : Schlüsselakteur der Energiewende (2013)
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    Publication Date: 2022-12-21
    Keywords: ddc:330
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: German
    Type: contributiontoperiodical , doc-type:contributionToPeriodical
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  • 6
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    Herausforderung klimaneutrale Mietwohngebäude (2022)
    Details
    Publication Date: 2022-10-24
    Description: Die Dekarbonisierung der Mietwohnungsbestände ist zwingende Voraussetzung für die Einhaltung deutscher Klimaschutzziele. Hierzu ist eine schnelle und deutliche Verbesserung der Energieeffizienz unabdinglich. Aber: funktioniert der Markt für Energieeffizienz bei Mietwohnungen? Eine empirische Untersuchung auf dem Wuppertaler Mietwohnungsmarkt gibt Antworten darauf. Um die Sanierungsrate signifikant zu steigern, etwa durch eine höhere Zahlungsbereitschaft für Energieeffizienz, braucht es sowohl für Vermieter als auch für Mieter verbesserte Rahmenbedingungen.
    Keywords: ddc:330
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: German
    Type: article , doc-type:article
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  • 7
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    Comparisons of the NASA ER-2 meteorological measurement system with radar tracking and radiosonde data (1992)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: Measurements of aircraft longitude, latitude, and velocity, and measurements of atmospheric pressure, temperature, and horizontal wind from the meteorological measurement system (MMS) on board the NASA ER-2 aircraft were compared with independent measurements of these quantities from radiosondes and radar tracking of both the ER-2 and radiosonde balloons. In general, the comparisons were good and within the expected measurement accuracy and natural variability of the meteorological parameters. Radar tracking of the ER-2 resolved the velocity and position drift of the inertial navigation system (INS). The rms errors in the horizontal velocity components of the ER-2, due to INS errors, were found to be 0.5 m/s. The magnitude of the drift in longitude and latitude depends on the sign and magnitude of the corresponding component velocity drift and can be a few hundredths of a degree. The radar altitudes of the ER-2 and radiosondes were used as the basis for comparing measurements of atmospheric pressure, temperature, and horizontal wind from these two platforms. The uncertainty in the MMS horizontal wind measurement is estimated to be +/- 2.5 m/s. The accuracy of the MMS pressure and temperature measurements were inferred to be +/- 0.3 hPa and +/- 0.3 K.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: Journal of Atmospheric and Oceanic Technology (ISSN 0739-0572); 9; 3, Ju; 210-225
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  • 8
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    The gust-front detection and wind-shift algorithms for the Terminal Doppler Weather Radar system (1993)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: The Federal Aviation Administration's (FAA) Terminal Doppler Weather Radar (TDWR) system was primarily designed to address the operational needs of pilots in the avoidance of low-altitude wind shears upon takeoff and landing at airports. One of the primary methods of wind-shear detection for the TDWR system is the gust-front detection algorithm. The algorithm is designed to detect gust fronts that produce a wind-shear hazard and/or sustained wind shifts. It serves the hazard warning function by providing an estimate of the wind-speed gain for aircraft penetrating the gust front. The gust-front detection and wind-shift algorithms together serve a planning function by providing forecasted gust-front locations and estimates of the horizontal wind vector behind the front, respectively. This information is used by air traffic managers to determine arrival and departure runway configurations and aircraft movements to minimize the impact of wind shifts on airport capacity. This paper describes the gust-front detection and wind-shift algorithms to be fielded in the initial TDWR systems. Results of a quantitative performance evaluation using Doppler radar data collected during TDWR operational demonstrations at the Denver, Kansas City, and Orlando airports are presented. The algorithms were found to be operationally useful by the FAA airport controllers and supervisors.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: Journal of Atmospheric and Oceanic Technology (ISSN 0739-0572); 10; 5; p. 693-709.
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  • 9
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    Current issues concerning the representativeness and utility of cloud drift winds in mesoscale meteorology (1985)
    In:  CASI
    Details
    Publication Date: 2004-12-04
    Description: High-resolution cloud motion wind (CMW) data sets obtained from geostationary satellites for approximately the past decade have been used for the purpose of estimating mesoscale wind fields in various research studies. Yet there remains much controversy surrounding the proper interpretation and use of the resultant wind vector and kinematic fields. This paper is concerned with: (1) how representative are cloud draft winds of actual ambient air motions; and (2) what is the degree of practical usefulness of CMW fields for both mesoscale analysis and as input to numerical weather prediction models.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: Proceedings of the NASA Symposium on Global Wind Measurements; p 59-64
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  • 10
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    Horizontal wind fluctuations in the stratosphere during large-scale cyclogenesis (1991)
    In:  Other Sources
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    Publication Date: 2011-08-19
    Description: The meteorological measurement system (MMS) on the U-2 aircraft measured pressure, temperature, and the horizontal wind during a cyclogenesis event over western United States on April 20, 1984. The mean horizontal wind in the stratosphere decreases monotonically with altitude. Superimposed on the mean stratospheric wind is a perturbation wind vector, which is an elliptically polarized wave with an amplitude of 4 to 10 m/s and a vertical wavelength of 2 to 3 km. The perturbation wind vector rotates anticyclonically (clockwise) with altitude and produces alternating advection in the plane of the aircraft flight path. This differential advection folds surfaces of constant tracer mixing ratio and contributes to the observed tracer laminar structures and inferred cross-jet transport.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: Journal of Geophysical Research (ISSN 0148-0227); 96; 17
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