FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4246883173> ?p ?o ?g. }

• W4246883173 abstract "Abstract. A method for estimating the stratospheric particle size distribution from multiwavelength lidar measurements is presented. It is based on matching measured and model-simulated backscatter coefficients. The lidar backscatter coefficients measured at the three commonly used wavelengths 355, 532 and 1064 nm are compared to a precomputed look-up table of model-calculated values. The optical model assumes that particles are spherical and that their size distribution is unimodal. This inverse problem is not trivial because the optical model is highly non-linear with a strong sensitivity to the size distribution parameters in some cases. The errors in the lidar backscatter coefficients are explicitly taken into account in the estimation. The method takes advantage of the statistical properties of the possible solution cluster to identify the most probable size distribution parameters. In order to discard model-simulated outliers resulting from the strong non-linearity of the model, a 1σ-filter is applied to the solution cluster. Within the filtered solution cluster, the estimation algorithm minimizes a cost function of the misfit between measurements and model simulations. Two validation cases are presented on Polar Stratospheric Cloud (PSC) events detected above the ALOMAR observatory (69° N – Norway). A first validation is performed against optical particle counter measurements carried out in January 1996. In non-depolarizing regions of the cloud (i.e. spherical particles), the parameters of an unimodal size distribution and those of the optically dominant mode of a bimodal size distribution are quite successfully retrieved, especially for the mode radius and the geometrical standard deviation. As expected, the algorithm performs poorly when solid particles drive the backscatter coefficient. A small bias is identified in modelling the refractive index when compared to previous works that inferred PSC type Ib refractive indices. The accuracy of the size distribution retrieval is improved when the refractive index is set to the value inferred in the reference paper. Our results are then compared to values retrieved with another similar method that does not account for the effect of the measurements errors and the non-linearity of the optical model on the likelihood of the solution. The case considered is a liquid PSC observed over northern Scandinavia on January, 2005. An excellent agreement is found between the two methods when our algorithm is applied without any statistical filtering of the solution cluster. However, the solution for the geometrical standard deviation appears to be rather unlikely with a value close to unity (σ≈1.04). When our algorithm is applied with solution filtering, a more realistic value of the standard deviation (σ≈1.27) is found. This highlights the importance of taking into account the non linearity of the model together with the lidar errors, when estimating particle size distribution parameters from lidar measurements." @default.
• W4246883173 created "2022-05-12" @default.
• W4246883173 creator A5046214865 @default.
• W4246883173 creator A5061958767 @default.
• W4246883173 creator A5070701814 @default.
• W4246883173 creator A5086701413 @default.
• W4246883173 date "2008-05-20" @default.
• W4246883173 modified "2023-10-17" @default.
• W4246883173 title "Statistical estimation of stratospheric particle size distribution by combining optical modelling and lidar scattering measurements" @default.
• W4246883173 cites W1499913620 @default.
• W4246883173 cites W1759109617 @default.
• W4246883173 cites W1965527193 @default.
• W4246883173 cites W1981434441 @default.
• W4246883173 cites W1986434119 @default.
• W4246883173 cites W1987489058 @default.
• W4246883173 cites W1992069383 @default.
• W4246883173 cites W1994858643 @default.
• W4246883173 cites W1995515323 @default.
• W4246883173 cites W2001712878 @default.
• W4246883173 cites W2002356052 @default.
• W4246883173 cites W2007907223 @default.
• W4246883173 cites W2020450400 @default.
• W4246883173 cites W2023922370 @default.
• W4246883173 cites W2027215155 @default.
• W4246883173 cites W2036409485 @default.
• W4246883173 cites W2046550057 @default.
• W4246883173 cites W2063170191 @default.
• W4246883173 cites W2063980464 @default.
• W4246883173 cites W2067454339 @default.
• W4246883173 cites W2071073202 @default.
• W4246883173 cites W2077915813 @default.
• W4246883173 cites W2078419246 @default.
• W4246883173 cites W2079234780 @default.
• W4246883173 cites W2083252717 @default.
• W4246883173 cites W2083369822 @default.
• W4246883173 cites W2089310054 @default.
• W4246883173 cites W2091659051 @default.
• W4246883173 cites W2095186408 @default.
• W4246883173 cites W2101168151 @default.
• W4246883173 cites W2115717621 @default.
• W4246883173 cites W2120908687 @default.
• W4246883173 cites W2125698412 @default.
• W4246883173 cites W2132588959 @default.
• W4246883173 cites W2146920208 @default.
• W4246883173 cites W2153527215 @default.
• W4246883173 cites W4232504229 @default.
• W4246883173 cites W4242877881 @default.
• W4246883173 doi "https://doi.org/10.5194/acpd-8-8913-2008" @default.
• W4246883173 hasPublicationYear "2008" @default.
• W4246883173 type Work @default.
• W4246883173 citedByCount "1" @default.
• W4246883173 countsByYear W42468831732018 @default.
• W4246883173 crossrefType "posted-content" @default.
• W4246883173 hasAuthorship W4246883173A5046214865 @default.
• W4246883173 hasAuthorship W4246883173A5061958767 @default.
• W4246883173 hasAuthorship W4246883173A5070701814 @default.
• W4246883173 hasAuthorship W4246883173A5086701413 @default.
• W4246883173 hasBestOaLocation W42468831731 @default.
• W4246883173 hasConcept C105795698 @default.
• W4246883173 hasConcept C120665830 @default.
• W4246883173 hasConcept C121332964 @default.
• W4246883173 hasConcept C127313418 @default.
• W4246883173 hasConcept C22679943 @default.
• W4246883173 hasConcept C30354325 @default.
• W4246883173 hasConcept C30475298 @default.
• W4246883173 hasConcept C33923547 @default.
• W4246883173 hasConcept C41008148 @default.
• W4246883173 hasConcept C51399673 @default.
• W4246883173 hasConcept C555944384 @default.
• W4246883173 hasConcept C62649853 @default.
• W4246883173 hasConcept C76155785 @default.
• W4246883173 hasConceptScore W4246883173C105795698 @default.
• W4246883173 hasConceptScore W4246883173C120665830 @default.
• W4246883173 hasConceptScore W4246883173C121332964 @default.
• W4246883173 hasConceptScore W4246883173C127313418 @default.
• W4246883173 hasConceptScore W4246883173C22679943 @default.
• W4246883173 hasConceptScore W4246883173C30354325 @default.
• W4246883173 hasConceptScore W4246883173C30475298 @default.
• W4246883173 hasConceptScore W4246883173C33923547 @default.
• W4246883173 hasConceptScore W4246883173C41008148 @default.
• W4246883173 hasConceptScore W4246883173C51399673 @default.
• W4246883173 hasConceptScore W4246883173C555944384 @default.
• W4246883173 hasConceptScore W4246883173C62649853 @default.
• W4246883173 hasConceptScore W4246883173C76155785 @default.
• W4246883173 hasLocation W42468831731 @default.
• W4246883173 hasLocation W42468831732 @default.
• W4246883173 hasLocation W42468831733 @default.
• W4246883173 hasLocation W42468831734 @default.
• W4246883173 hasOpenAccess W4246883173 @default.
• W4246883173 hasPrimaryLocation W42468831731 @default.
• W4246883173 hasRelatedWork W10509864 @default.
• W4246883173 hasRelatedWork W11726288 @default.
• W4246883173 hasRelatedWork W12244482 @default.
• W4246883173 hasRelatedWork W26682191 @default.
• W4246883173 hasRelatedWork W28577881 @default.
• W4246883173 hasRelatedWork W35387313 @default.
• W4246883173 hasRelatedWork W45360588 @default.
• W4246883173 hasRelatedWork W45386008 @default.
• W4246883173 hasRelatedWork W50952164 @default.
• W4246883173 hasRelatedWork W5996002 @default.

• next