Characterising optical array particle imaging probes: implications for small ice crystal observations
| العنوان: | Characterising optical array particle imaging probes: implications for small ice crystal observations |
|---|---|
| المؤلفون: | Sebastian O'Shea, Jonathan Crosier, James Dorsey, Louis Gallagher, Waldemar Schledewitz, Keith Bower, Oliver Schlenczek, Stephan Borrmann, Richard Cotton, Christopher Westbrook, Zbigniew Ulanowski |
| بيانات النشر: | Copernicus GmbH, 2020. |
| سنة النشر: | 2020 |
| الوصف: | The cloud particle concentration, size and shape data from optical array probes (OAPs) are routinely used to parameterise cloud properties and constrain remote sensing retrievals. This paper characterises the optical response of OAPs using a combination of modelling, laboratory and field experiments. Significant uncertainties are found to exist with such probes for ice crystal measurements. We describe and test two independent methods to constrain a probe's sample volume that removes the most severely mis-sized particles: (1) greyscale image analysis and (2) co-location using stereoscopic imaging. These methods are tested using field measurements from three research flights in cirrus. For these cases, the new methodologies significantly improve agreement with a holographic imaging probe compared to conventional data processing protocols, either removing or significantly reducing the concentration of small ice crystals ( |
| DOI: | 10.5194/amt-2020-265 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::349a19972a50bbfdebae81cebf4fc6be https://doi.org/10.5194/amt-2020-265 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi...........349a19972a50bbfdebae81cebf4fc6be |
| قاعدة البيانات: | OpenAIRE |
| ResultId |
1 |
|---|---|
| Header |
edsair OpenAIRE edsair.doi...........349a19972a50bbfdebae81cebf4fc6be 845 3 unknown 844.712768554688 |
| PLink |
https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edsair&AN=edsair.doi...........349a19972a50bbfdebae81cebf4fc6be&custid=s6537998&authtype=sso |
| FullText |
Array
(
[Availability] => 0
)
Array ( [0] => Array ( [Url] => https://explore.openaire.eu/search/publication?articleId=doi_________::349a19972a50bbfdebae81cebf4fc6be# [Name] => EDS - OpenAIRE [Category] => fullText [Text] => View record in OpenAIRE [MouseOverText] => View record in OpenAIRE ) ) |
| Items |
Array
(
[Name] => Title
[Label] => Title
[Group] => Ti
[Data] => Characterising optical array particle imaging probes: implications for small ice crystal observations
)
Array ( [Name] => Author [Label] => Authors [Group] => Au [Data] => <searchLink fieldCode="AR" term="%22Sebastian+O'Shea%22">Sebastian O'Shea</searchLink><br /><searchLink fieldCode="AR" term="%22Jonathan+Crosier%22">Jonathan Crosier</searchLink><br /><searchLink fieldCode="AR" term="%22James+Dorsey%22">James Dorsey</searchLink><br /><searchLink fieldCode="AR" term="%22Louis+Gallagher%22">Louis Gallagher</searchLink><br /><searchLink fieldCode="AR" term="%22Waldemar+Schledewitz%22">Waldemar Schledewitz</searchLink><br /><searchLink fieldCode="AR" term="%22Keith+Bower%22">Keith Bower</searchLink><br /><searchLink fieldCode="AR" term="%22Oliver+Schlenczek%22">Oliver Schlenczek</searchLink><br /><searchLink fieldCode="AR" term="%22Stephan+Borrmann%22">Stephan Borrmann</searchLink><br /><searchLink fieldCode="AR" term="%22Richard+Cotton%22">Richard Cotton</searchLink><br /><searchLink fieldCode="AR" term="%22Christopher+Westbrook%22">Christopher Westbrook</searchLink><br /><searchLink fieldCode="AR" term="%22Zbigniew+Ulanowski%22">Zbigniew Ulanowski</searchLink> ) Array ( [Name] => Publisher [Label] => Publisher Information [Group] => PubInfo [Data] => Copernicus GmbH, 2020. ) Array ( [Name] => DatePubCY [Label] => Publication Year [Group] => Date [Data] => 2020 ) Array ( [Name] => Abstract [Label] => Description [Group] => Ab [Data] => The cloud particle concentration, size and shape data from optical array probes (OAPs) are routinely used to parameterise cloud properties and constrain remote sensing retrievals. This paper characterises the optical response of OAPs using a combination of modelling, laboratory and field experiments. Significant uncertainties are found to exist with such probes for ice crystal measurements. We describe and test two independent methods to constrain a probe's sample volume that removes the most severely mis-sized particles: (1) greyscale image analysis and (2) co-location using stereoscopic imaging. These methods are tested using field measurements from three research flights in cirrus. For these cases, the new methodologies significantly improve agreement with a holographic imaging probe compared to conventional data processing protocols, either removing or significantly reducing the concentration of small ice crystals ( ) Array ( [Name] => DOI [Label] => DOI [Group] => ID [Data] => 10.5194/amt-2020-265 ) Array ( [Name] => URL [Label] => Access URL [Group] => URL [Data] => <link linkTarget="URL" linkTerm="https://explore.openaire.eu/search/publication?articleId=doi_________::349a19972a50bbfdebae81cebf4fc6be" linkWindow="_blank">https://explore.openaire.eu/search/publication?articleId=doi_________::349a19972a50bbfdebae81cebf4fc6be</link><br /><link linkTarget="URL" linkTerm="https://doi.org/10.5194/amt-2020-265" linkWindow="_blank">https://doi.org/10.5194/amt-2020-265</link> ) Array ( [Name] => Copyright [Label] => Rights [Group] => Cpyrght [Data] => OPEN ) Array ( [Name] => AN [Label] => Accession Number [Group] => ID [Data] => edsair.doi...........349a19972a50bbfdebae81cebf4fc6be ) |
| RecordInfo |
Array
(
[BibEntity] => Array
(
[Identifiers] => Array
(
[0] => Array
(
[Type] => doi
[Value] => 10.5194/amt-2020-265
)
)
[Languages] => Array
(
[0] => Array
(
[Text] => Undetermined
)
)
[Titles] => Array
(
[0] => Array
(
[TitleFull] => Characterising optical array particle imaging probes: implications for small ice crystal observations
[Type] => main
)
)
)
[BibRelationships] => Array
(
[HasContributorRelationships] => Array
(
[0] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Sebastian O'Shea
)
)
)
[1] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Jonathan Crosier
)
)
)
[2] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => James Dorsey
)
)
)
[3] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Louis Gallagher
)
)
)
[4] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Waldemar Schledewitz
)
)
)
[5] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Keith Bower
)
)
)
[6] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Oliver Schlenczek
)
)
)
[7] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Stephan Borrmann
)
)
)
[8] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Richard Cotton
)
)
)
[9] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Christopher Westbrook
)
)
)
[10] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Zbigniew Ulanowski
)
)
)
)
[IsPartOfRelationships] => Array
(
[0] => Array
(
[BibEntity] => Array
(
[Dates] => Array
(
[0] => Array
(
[D] => 26
[M] => 08
[Type] => published
[Y] => 2020
)
)
[Identifiers] => Array
(
[0] => Array
(
[Type] => issn-locals
[Value] => edsair
)
[1] => Array
(
[Type] => issn-locals
[Value] => edsairFT
)
)
)
)
)
)
)
|
| IllustrationInfo |