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Measurements and observations

Accurate Measurements of Pointing Performance from In Situ Observations

Accurate Measurements of Pointing Performance from In Situ Observations

... Cambridge, MA 02138, USA { kgajos,reinecke,iherrmann } @seas.harvard.edu ABSTRACT We present a method for obtaining lab-quality measurements of pointing performance from unobtrusive observations of natural ...

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Accurate Measurements of Pointing Performance from In Situ Observations

Accurate Measurements of Pointing Performance from In Situ Observations

... Cambridge, MA 02138, USA { kgajos,reinecke,iherrmann } @seas.harvard.edu ABSTRACT We present a method for obtaining lab-quality measurements of pointing performance from unobtrusive observations of natural ...

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Reconciling aerosol light extinction measurements from spaceborne lidar observations and in situ measurements in the Arctic

Reconciling aerosol light extinction measurements from spaceborne lidar observations and in situ measurements in the Arctic

... situ measurements at Zeppelin station ...Satellite Observations (CALIPSO) ...lidar measurements to optical aerosol prop- erties from short-term in situ observations (averaged over 5 h) on a ...

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Good Combination of the Rossiter-McLaughlin Measurements and Direct Imaging Observations

Good Combination of the Rossiter-McLaughlin Measurements and Direct Imaging Observations

... Abstract. We introduce a novel methodology to distinguish planetary migration mechanisms by a combination of Rossiter-McLaughlin measurements and direct imaging observations. The methodology is especially ...

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Characterization of ASCAT measurements based on buoy and QuikSCAT wind vector observations

Characterization of ASCAT measurements based on buoy and QuikSCAT wind vector observations

... wind observations are validated through com- parisons with collocated measurements from moored NDBC, MF-UK, and TAO buoys and with global collocations with QuikSCAT scatterometer and ECMWF wind ...

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Estimation of photolysis frequencies from TOMS satellite measurements and routine meteorological observations

Estimation of photolysis frequencies from TOMS satellite measurements and routine meteorological observations

... cloud cover from observations, as measurements of cloud op- tical thickness or other parameters are rare. A fixed water cloud was assumed between 1 and 2 km, with a constant liq- uid water content of 0.1 gm ...

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Cluster magnetic field observations in the magnetosheath: four-point measurements of mirror structures

Cluster magnetic field observations in the magnetosheath: four-point measurements of mirror structures

... spacecraft observations provide more information, but still leave some ambiguities in establishing the characteris- tics of these features (Fazakerley and Southwood, 1994a,b; Hubert et ...four-point ...

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MAX-DOAS measurements of tropospheric NO₂ and HCHO in Nanjing and a comparison to ozone monitoring instrument observations

MAX-DOAS measurements of tropospheric NO₂ and HCHO in Nanjing and a comparison to ozone monitoring instrument observations

... the observations that the MAX-DOAS agrees better with the sun photometer under low aerosol conditions (AOD < 1) and un- derestimates the AOD during high AOD ...photometer measurements are expected to be ...

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Comparisons of CH4 ground-based FTIR measurements near Saint Petersburg with GOSAT observations

Comparisons of CH4 ground-based FTIR measurements near Saint Petersburg with GOSAT observations

... FTIR observations could provide reasonable agreement with satellite ...of measurements. This veri- fies that FTIR spectroscopic observations near Saint Peters- burg have similar biases with GOSAT ...

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A Climatology of Disdrometer Measurements of Rainfall in Finland over Five Years with Implications for Global Radar Observations

A Climatology of Disdrometer Measurements of Rainfall in Finland over Five Years with Implications for Global Radar Observations

... size measurements have been analyzed that were collected over five years with a Joss–Waldvogel disdrometer located in Ja¨rvenpa¨a¨, ...radar observations, particularly those employing polarimetric and ...

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Comparison of HDO measurements from Envisat/MIPAS with observations by Odin/SMR and SCISAT/ACE-FTS

Comparison of HDO measurements from Envisat/MIPAS with observations by Odin/SMR and SCISAT/ACE-FTS

... individual measurements were required for an average to be considered, in order to avoid spurious data points in the latitudinal cross ...of observations by ACE-FTS as compared to the other instruments due ...

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Calibration of the 2007–2017 record of Atmospheric Radiation Measurements cloud radar observations using CloudSat

Calibration of the 2007–2017 record of Atmospheric Radiation Measurements cloud radar observations using CloudSat

... ground-based observations of the Weather Surveillance Radar-1998 Doppler (WSR-88D) network uncovered several issues with the calibration of the radars despite the mandate of the WSR-88D network on quantitative ...

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Cavitation observations and noise measurements of horizontal axis tidal turbines with biomimetic blade leading-edge designs

Cavitation observations and noise measurements of horizontal axis tidal turbines with biomimetic blade leading-edge designs

... Based on the above background, given the promising potential of applying tubercles to the turbine, an investigation was undertaken into the cavitation and noise characteristics of such a device in comparison with a ...

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Further  Measurements  and Observations  on  the  Cromwell Current

Further Measurements and Observations on the Cromwell Current

... The indication from the velocity and salinity data of a meridional convergent flow in the region of the Current is less equivocable evidence for a net vertical [r] ...

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Equatorial f region plasma drift measurements and observations using doppler interferometry at Parit Raja

Equatorial f region plasma drift measurements and observations using doppler interferometry at Parit Raja

... III. MEASUREMENTS The digisonde at Waras is used to measure and monitor the plasma drift or convection behaviour as a function of time for the Parit Raja station located at longitude 1 o 52’ and lattitude 103 o ...

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Dust observations with antenna measurements and its prospects for observations with Parker Solar Probe and Solar Orbiter

Dust observations with antenna measurements and its prospects for observations with Parker Solar Probe and Solar Orbiter

... Received: 28 June 2019 – Discussion started: 15 July 2019 Accepted: 7 October 2019 – Published: 10 December 2019 Abstract. The electric and magnetic field instrument suite FIELDS on board the NASA Parker Solar Probe and ...

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Dynamic distortions in the HARP TPC: observations, measurements, modelling and corrections

Dynamic distortions in the HARP TPC: observations, measurements, modelling and corrections

... E-mail: [email protected] A BSTRACT : The HARP experiment was designed to study hadron production in proton-nucleus collisions in the energy range of 1.5 GeV/c–15 GeV/c. The experiment was made of two spec- trometers, ...

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Cluster boundary layer measurements and optical observations at magnetically conjugate sites

Cluster boundary layer measurements and optical observations at magnetically conjugate sites

... 5 Summary and concluding remarks We have related two boundary layer encounters experienced by Cluster to dynamic changes in the 15:00–17:00 MLT au- roral activity observed between Greenland and Svalbard. We have ...

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Measurements and modelling of seasonal snow characteristics for interpreting passive microwave observations

Measurements and modelling of seasonal snow characteristics for interpreting passive microwave observations

... The tower-based brightness temperature observations from the natural snowpack and snow samples that were excavated from the natural snow were compared with simulations from microwave emi[r] ...

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Sea level measurements using multi frequency GPS and GLONASS observations

Sea level measurements using multi frequency GPS and GLONASS observations

... Additionally, observations from low satellite ele- vation angles were considered, since this is where the multipath effect is the ...useful observations are not reflected off the sea surface close to the ...

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