Blar i NILU rapport / NILU report (2016- ) på forfatter "Walker, Sam-Erik"

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    • Appropriate Assimilation Methods for Air Quality Prediction and Pollutant Emission Inversion. An Urban Data Assimilation Systems Report. 

      Hamer, Paul David; Walker, Sam-Erik; Schneider, Philipp (NILU report;25/2020, Research report, 2021)
      This report presents a review of data assimilation methods applicable to air quality. In the introduction, we first describe a brief history of data assimilation method development in the context of numerical weather ...

    • Monitoring of greenhouse gases and aerosols at Svalbard and Birkenes in 2017 - Annual report 

      Myhre, Cathrine Lund; Svendby, Tove Marit; Hermansen, Ove; Lunder, Chris Rene; Platt, Stephen Matthew; Fiebig, Markus; Fjæraa, Ann Mari; Hansen, Georg Heinrich; Schmidbauer, Norbert; Krognes, Terje; Walker, Sam-Erik (NILU report;29/2018, Research report, 2018)
      The report summaries the activities and results of the greenhouse gas monitoring at the Zeppelin Observatory situated on Svalbard in Arctic Norway during the period 2001-2017, and the greenhouse gas monitoring and aerosol ...

    • Monitoring of greenhouse gases and aerosols at Svalbard and Birkenes in 2018. Annual report. 

      Myhre, Cathrine Lund; Svendby, Tove Marit; Hermansen, Ove; Lunder, Chris Rene; Platt, Stephen Matthew; Fiebig, Markus; Fjæraa, Ann Mari; Hansen, Georg Heinrich; Schmidbauer, Norbert; Krognes, Terje; Walker, Sam-Erik (NILU report;18/2019, Research report, 2019)
      The report summaries the activities and results of the greenhouse gas monitoring at the Zeppelin Observatory situated on Svalbard in Arctic Norway during the period 2001-2018, and the greenhouse gas monitoring and aerosol ...

    • A study of the relative expanded uncertainty formula for comparing low-cost sensor and reference measurements 

      Walker, Sam-Erik; Schneider, Philipp (NILU report;1/2020, Research report, 2020)
      In this report, we investigate the relative expanded uncertainty (REU) formula for comparing low-cost sensors (microsensors) and reference measurements. The purpose of the REU formula is to check if microsensor measurements ...

    • Tiltaksutredning for lokal luftkvalitet i Lørenskog kommune 

      Høiskar, Britt Ann Kåstad; Walker, Sam-Erik; Weydahl, Torleif; Markelj, Miha; Andersen, André; Lopez-Aparicio, Susana; Grythe, Henrik (NILU rapport;32/2022, Research report, 2023)
      NILU – Norsk institutt for luftforskning har, i samarbeid med Transportanalyse AS, utarbeidet en tiltaksutredning for bedre luftkvalitet i Lørenskog. Utredningen er gjennomført på oppdrag av Lørenskog kommune. Tiltaksutredningen ...

    • Tiltaksutredning for lokal luftkvalitet i Tromsø 

      Weydahl, Torleif; Walker, Sam-Erik; Johnsrud, Mona; Vo, Dam Thanh; Ranheim, Patrick (NILU rapport;26/2019, Research report, 2019)
      Tiltaksutredningen, med handlingsplan og tiltak, skal bidra til å redusere luftforurensningen til et nivå som tilfredsstiller kravene i forurensningsforskriften. Tiltaksutredningen omfatter en kartlegging av luftkvaliteten ...