Found 9883 publications. Showing page 90 of 396:
2024
Response of Total Column Ozone at High Latitudes to Sudden Stratospheric Warmings
The total column ozone (TCO) at northern high latitudes is increased over a course of 1–2 months after a major sudden stratospheric warming as a consequence of enhanced ozone eddy transport and diffusive ozone fluxes. We analyzed ground-based measurements of TCO from Oslo, Andøya and Ny Ålesund from 2000 to 2020. During this time interval, 15 major sudden stratospheric warmings (SSWs) occurred. The observed TCO variations are in a good agreement with those of ECMWF Reanalysis v5 (ERA5), showing that TCO from ERA5 is reliable, even during dynamically active periods. ERA5 has the advantage that it has no data gaps during the polar night. We found that TCO was increased by up to 190 DU after the SSW of February 2010, over one month. The composite analysis of the 15 SSWs provided the result that TCO is increased on average by about 50 DU over one month after the central date of the SSW.
MDPI
2023
2018
2013
Resource guide of scenarios for modelling pollutant transport in Northern Sea Areas. Akvaplan-niva report, APN-1672.04
2000
2018
2008
Research and monitoring of atmospheric persistent organic pollutants (POPs) in the polar atmosphere. From pole to pole
2016
2004
2004
2022
2010
Reporting of the air pollution situtation in Norway according to EUs new air quality directives. NILU OR
1999
Reporting and exchanging air quality information using e-Reporting. EEA Technical report, 5/2012
2012
Reporting air quality in Dakar, Senegal. NILU OR
The Norwegian Institute for Air Research (NILU) has developed the air quality monitoring and management programme for Dakar, Senegal. Part of this project involves the development of templates for reporting of the air quality based on measurements of air pollution and meteorology. This example of reporting procedures is strictly limited to the reporting of measurement results. Templates are presented for:
¿ Daily and weekly reports
¿ Monthly data reports
¿ Quarterly assessment reports
¿ Annual ¿State of the environment¿ report.
The templates indicate typical content with different examples of presentations, air quality statistics and figures and tables prepared in order to assess the air quality in Dakar. Similar procedures are being used by different authorities worldwide.
2010