Prototype Telescope Subassembly For The High Resolution Doppler Imager For The Upper Atmospheric Research Satellite

2014 ◽

Vol 7 (2) ◽

pp. 1001-1025

Author(s):

L. L. Smith ◽

J. C. Gille

Keyword(s):

High Resolution ◽

System Model ◽

Weather Forecasts ◽

Atmospheric Research ◽

Earth Observing System ◽

Medium Range ◽

High Bias ◽

Environmental Prediction ◽

The Tropics ◽

Data Screening

Abstract. Global satellite observations from the EOS Aura spacecraft's High Resolution Dynamics Limb Sounder (HIRDLS) of temperature and geopotential height (GPH) are discussed. The accuracy, resolution and precision of the HIRDLS version 7 algorithms are assessed and data screening recommendations are made. Comparisons with GPH from observations, reanalyses and models including European Center for Medium-Range Weather Forecasts Interim Reanalysis (ERA-Interim), National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) Reanalysis, Goddard Earth Observing System Model (GEOS) version 5, and EOS Aura Microwave Limb Sounder (MLS) illustrate the HIRDLS GPH have a precision ranging from 2 m to 30 m and an accuracy of ±100 m. Comparisons indicate HIRDLS GPH may have a slight low bias in the tropics and a slight high bias at high latitudes. Geostrophic winds computed with HIRDLS GPH qualitatively agree with winds from other data sources including ERA-Interim, NCEP and GEOS-5.

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Methane Emission Estimates by the Global High-Resolution Inverse Model Using National Inventories

Remote Sensing ◽

10.3390/rs11212489 ◽

2019 ◽

Vol 11 (21) ◽

pp. 2489 ◽

Cited By ~ 5

Author(s):

Fenjuan Wang ◽

Shamil Maksyutov ◽

Aki Tsuruta ◽

Rajesh Janardanan ◽

Akihiko Ito ◽

...

Keyword(s):

High Resolution ◽

Methane Emission ◽

Statistical Data ◽

Trace Gases ◽

Inverse Model ◽

Anthropogenic Emissions ◽

Atmospheric Research ◽

Assimilation System ◽

Gosat Satellite ◽

Country Specific

We present a global 0.1° × 0.1° high-resolution inverse model, NIES-TM-FLEXPART-VAR (NTFVAR), and a methane emission evaluation using the Greenhouse Gas Observing Satellite (GOSAT) satellite and ground-based observations from 2010–2012. Prior fluxes contained two variants of anthropogenic emissions, Emissions Database for Global Atmospheric Research (EDGAR) v4.3.2 and adjusted EDGAR v4.3.2 which were scaled to match the country totals by national reports to the United Nations Framework Convention on Climate Change (UNFCCC), augmented by biomass burning emissions from Global Fire Assimilation System (GFASv1.2) and wetlands Vegetation Integrative Simulator for Trace Gases (VISIT). The ratio of the UNFCCC-adjusted global anthropogenic emissions to EDGAR is 98%. This varies by region: 200% in Russia, 84% in China, and 62% in India. By changing prior emissions from EDGAR to UNFCCC-adjusted values, the optimized total emissions increased from 36.2 to 46 Tg CH4 yr−1 for Russia, 12.8 to 14.3 Tg CH4 yr−1 for temperate South America, and 43.2 to 44.9 Tg CH4 yr−1 for contiguous USA, and the values decrease from 54 to 51.3 Tg CH4 yr−1 for China, 26.2 to 25.5 Tg CH4 yr−1 for Europe, and by 12.4 Tg CH4 yr−1 for India. The use of the national report to scale EDGAR emissions allows more detailed statistical data and country-specific emission factors to be gathered in place compared to those available for EDGAR inventory. This serves policy needs by evaluating the national or regional emission totals reported to the UNFCCC.

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Validation of the Aura High Resolution Dynamics Limb Sounder geopotential heights

Atmospheric Measurement Techniques ◽

10.5194/amt-7-2775-2014 ◽

2014 ◽

Vol 7 (8) ◽

pp. 2775-2785 ◽

Cited By ~ 1

Author(s):

L. L. Smith ◽

J. C. Gille

Keyword(s):

High Resolution ◽

High Latitudes ◽

Weather Forecasts ◽

Atmospheric Research ◽

Earth Observing System ◽

Medium Range ◽

High Bias ◽

Environmental Prediction ◽

The Tropics ◽

Data Screening

Abstract. The geopotential height (GPH) product created from global observations by the High Resolution Dynamics Limb Sounder (HIRDLS) instrument on NASA's Earth Observing System (EOS) Aura spacecraft is discussed. The accuracy, resolution and precision of the HIRDLS version 7 algorithms are assessed and data screening recommendations are made. Comparisons with GPH from observations, reanalyses and models including European Centre for Medium-Range Weather Forecasts Interim Reanalysis (ERA-Interim), and National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) Reanalysis illustrate the HIRDLS GPHs have a precision ranging from 2 to 30 m and an accuracy of ±100 m up to 1 hPa. Comparisons indicate HIRDLS GPH may have a slight low bias in the tropics and a slight high bias at high latitudes. Geostrophic winds computed with HIRDLS GPH qualitatively agree with winds from other data sources including ERA-Interim.

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