13 publication(s) trouvée(s)
Article scientifique
Ground-based monitoring of nitrogen dioxide in Kumasi, Ghana, and its comparison with satellite observations
Air pollution poses an increasing public health risk in many African cities, where systematic monitoring is limited by the high …
Article scientifique
Conditioning-controlled retrieval of broadband land surface temperature and emissivity from paired ground-based longwave irradiance measurements
Accurate retrieval of land surface temperature ( T s ) from broadband longwave radiometric measurements is limited by the nonlinear …
Article scientifique
Measuring cloud optical depth with a balloonborne microlidar operated from the stratosphere
The Balloonborne Cloud Observing micrOLidar (BeCOOL) has been developed to be operated onboard a stratospheric balloon in order to monitor …
Article scientifique
Validation and field application of a low-cost device to measure CO 2 and evapotranspiration (ET) fluxes
Abstract. Mitigating the global climate crisis and its consequences, such as more frequent and severe droughts, is one of the …
Article scientifique
Further validation of the estimates of the downwelling solar radiation at ground level in cloud-free conditions provided by the McClear service: the case of Sub-Saharan Africa and the Maldives Archipelago
Abstract. Being part of the Copernicus Atmosphere Monitoring Service (CAMS), the McClear service provides estimates of the downwelling shortwave irradiance …
Article scientifique
Performance evaluation of multiple satellite rainfall products for Dhidhessa River Basin (DRB), Ethiopia
Abstract. Precipitation is a crucial driver of hydrological processes. Ironically, a reliable characterization of its spatiotemporal variability is challenging. Ground-based …
Article scientifique
Application of TXRF in monitoring trace metals in particulate matter and cloud water
Abstract. Trace metals in ambient particulate matter and cloud are considered key elements of atmospheric processes as they affect air …
Article scientifique
Methane and nitrous oxide from ground-based FTIR at Addis Ababa: observations, error analysis, and comparison with satellite data
Abstract. A ground-based, high-spectral-resolution Fourier transform infrared (FTIR) spectrometer has been operational in Addis Ababa, Ethiopia (9.01∘ N latitude, 38.76∘ …
Article scientifique
On the performance of satellite-based observations of X CO 2 in capturing the NOAA Carbon Tracker model and ground-based flask observations over Africa's land mass
Abstract. Africa is one of the most data-scarce regions as satellite observation at the Equator is limited by cloud cover …
Article scientifique
Unified quantitative observation of coexisting volcanic sulfur dioxide and sulfate aerosols using ground-based Fourier transform infrared spectroscopy
Abstract. We developed an optimal-estimation algorithm to simultaneously retrieve, for the first time, coexisting volcanic gaseous SO2 and sulfate aerosols …
Article scientifique
Evaluation of Windsond S1H2 performance in Kumasi during the 2016 DACCIWA field campaign
Abstract. Sparv Embedded, Sweden (http://windsond.com, last access: 22 February 2019), has answered the call for less expensive but accurate reusable …
Article scientifique
A novel post-processing algorithm for Halo Doppler lidars
Abstract. Commercially available Doppler lidars have now been proven to be efficient tools for studying winds and turbulence in the …
Article scientifique
Validation of 10-year SAO OMI Ozone Profile (PROFOZ) product using ozonesonde observations
Abstract. We validate the Ozone Monitoring Instrument (OMI) Ozone Profile (PROFOZ) product from October 2004 through December 2014 retrieved by …