Cloudnet IWC during PS106
The dataset contains daily nc-files of the Cloudnet ice water content during Polarstern cruise PS106 based on: - 35.5 GHz Cloud radar MIRA. The data is retrieved using the instrument synergystic approach Cloudnet (Illingworth, 2007 doi:10.1175/BAMS-88-6-883 ). This variable was calculated from the 3...
Main Authors: | , , , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2020
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.919452 https://doi.org/10.1594/PANGAEA.919452 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.919452 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AC3 Arctic Amplification ARK-XXXI/1.1,PASCAL Cloudnet Cloud Radar CRS DATE/TIME Event label File format File name File size OCEANET-ATMOSPHERE PASCAL Polarstern PS106 PS106_0_Underway-12 PS106_0_Underway-14 PS106/1 TROPOS Uniform resource locator/link to file |
spellingShingle |
AC3 Arctic Amplification ARK-XXXI/1.1,PASCAL Cloudnet Cloud Radar CRS DATE/TIME Event label File format File name File size OCEANET-ATMOSPHERE PASCAL Polarstern PS106 PS106_0_Underway-12 PS106_0_Underway-14 PS106/1 TROPOS Uniform resource locator/link to file Griesche, Hannes Seifert, Patric Engelmann, Ronny Radenz, Martin Bühl, Johannes Cloudnet IWC during PS106 |
topic_facet |
AC3 Arctic Amplification ARK-XXXI/1.1,PASCAL Cloudnet Cloud Radar CRS DATE/TIME Event label File format File name File size OCEANET-ATMOSPHERE PASCAL Polarstern PS106 PS106_0_Underway-12 PS106_0_Underway-14 PS106/1 TROPOS Uniform resource locator/link to file |
description |
The dataset contains daily nc-files of the Cloudnet ice water content during Polarstern cruise PS106 based on: - 35.5 GHz Cloud radar MIRA. The data is retrieved using the instrument synergystic approach Cloudnet (Illingworth, 2007 doi:10.1175/BAMS-88-6-883 ). This variable was calculated from the 35.5-GHz radar reflectivity factor after correction for gaseous attenuation, and temperature taken from a forecast model, using the following empirical formula: log10(iwc[g m-3]) = 0.000242Z[dBZ]T[degC] + 0.0699Z[dBZ] + -0.0186T[degC] + -1.63 (Hogan, 2006 doi:10.1175/JAM2340.1 ). In this formula Z is taken to be defined such that all frequencies of radar would measure the same Z in Rayleigh scattering ice. However, the radar is more likely to have been calibrated such that all frequencies would measure the same Z in Rayleigh scattering liquid cloud at 0 degrees C. The measured Z is therefore multiplied by |K(liquid,0degC,35GHz)|^2/0.93 = 0.9441 before applying this formula. The formula has been used where the \"categorization\" data has diagnosed that the radar echo is due to ice, but note that in some cases supercooled drizzle will erroneously be identified as ice. Missing data indicates either that ice cloud was present but it was only detected by the lidar so its ice water content could not be estimated, or that there was rain below the ice associated with uncertain attenuation of the reflectivities in the ice. Note that where microwave radiometer liquid water path was available it was used to correct the radar for liquid attenuation when liquid cloud occurred below the ice; this is indicated a value of 3 in the iwc_retrieval_status variable. There is some uncertainty in thisprodedure which is reflected by an increase in the associated values in the iwc_error variable. When microwave radiometer data were not available and liquid cloud occurred below the ice, the retrieval was still performed but its reliability is questionable due to the uncorrected liquid water attenuation. This is indicated by a value of 2 in the ... |
format |
Dataset |
author |
Griesche, Hannes Seifert, Patric Engelmann, Ronny Radenz, Martin Bühl, Johannes |
author_facet |
Griesche, Hannes Seifert, Patric Engelmann, Ronny Radenz, Martin Bühl, Johannes |
author_sort |
Griesche, Hannes |
title |
Cloudnet IWC during PS106 |
title_short |
Cloudnet IWC during PS106 |
title_full |
Cloudnet IWC during PS106 |
title_fullStr |
Cloudnet IWC during PS106 |
title_full_unstemmed |
Cloudnet IWC during PS106 |
title_sort |
cloudnet iwc during ps106 |
publisher |
PANGAEA |
publishDate |
2020 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.919452 https://doi.org/10.1594/PANGAEA.919452 |
op_coverage |
MEDIAN LATITUDE: 71.139870 * MEDIAN LONGITUDE: 12.724180 * SOUTH-BOUND LATITUDE: 57.059650 * WEST-BOUND LONGITUDE: 5.402260 * NORTH-BOUND LATITUDE: 78.083530 * EAST-BOUND LONGITUDE: 21.734540 * DATE/TIME START: 2017-05-24T00:00:00 * DATE/TIME END: 2017-07-18T00:00:00 * MINIMUM ELEVATION: -342.0 m * MAXIMUM ELEVATION: -46.6 m |
long_lat |
ENVELOPE(10.500,10.500,-70.417,-70.417) ENVELOPE(5.402260,21.734540,78.083530,57.059650) |
geographic |
Arctic Mira |
geographic_facet |
Arctic Mira |
genre |
Arctic Arctic |
genre_facet |
Arctic Arctic |
op_source |
Leibniz-Institut für Troposphärenforschung e.V., Leipzig |
op_relation |
Griesche, Hannes; Seifert, Patric; Ansmann, Albert; Baars, Holger; Barrientos Velasco, Carola; Bühl, Johannes; Engelmann, Ronny; Radenz, Martin; Zhenping, Yin (in review): Application of the shipborne remote sensing supersite OCEANET for profiling of Arctic aerosols and clouds during Polarstern cruise PS106. Atmospheric Measurement Techniques Discussions, https://doi.org/10.5194/amt-2019-434 Griesche, Hannes; Seifert, Patric; Engelmann, Ronny; Radenz, Martin; Bühl, Johannes (2019): Cloudnet IWC during POLARSTERN cruise PS106. Leibniz-Institut für Troposphärenforschung e.V., Leipzig, PANGAEA, https://doi.org/10.1594/PANGAEA.900246 Hogan, Robin J; Mittermaier, Marion P; Illingworth, Anthony J (2006): The Retrieval of Ice Water Content from Radar Reflectivity Factor and Temperature and Its Use in Evaluating a Mesoscale Model. Journal of Applied Meteorology and Climatology, 45(2), 301-317, https://doi.org/10.1175/JAM2340.1 Illingworth, Anthony J; Hogan, Robin J; O'Connor, E J; Bouniol, D; Brooks, M E; Delanoé, J; Donovan, D P; Eastment, J D; Gaussiat, N; Goddard, J W F; Haeffelin, Martial; Klein Baltink, H; Krasnov, O A; Pelon, J; Piriou, J-M; Protat, Alain; Russchenberg, H W J; Seifert, A; Tompkins, A M; van Zadelhoff, G-J; Vinit, F; Willén, U; Wilson, D R; Wrench, C L (2007): Cloudnet: Continuous Evaluation of Cloud Profiles in Seven Operational Models Using Ground-Based Observations. Bulletin of the American Meteorological Society, 88(6), 883-898, https://doi.org/10.1175/BAMS-88-6-883 https://doi.pangaea.de/10.1594/PANGAEA.919452 https://doi.org/10.1594/PANGAEA.919452 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.919452 https://doi.org/10.5194/amt-2019-434 https://doi.org/10.1594/PANGAEA.900246 https://doi.org/10.1175/JAM2340.1 https://doi.org/10.1175/BAMS-88-6-883 |
_version_ |
1766302410361274368 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.919452 2023-05-15T14:28:15+02:00 Cloudnet IWC during PS106 Griesche, Hannes Seifert, Patric Engelmann, Ronny Radenz, Martin Bühl, Johannes MEDIAN LATITUDE: 71.139870 * MEDIAN LONGITUDE: 12.724180 * SOUTH-BOUND LATITUDE: 57.059650 * WEST-BOUND LONGITUDE: 5.402260 * NORTH-BOUND LATITUDE: 78.083530 * EAST-BOUND LONGITUDE: 21.734540 * DATE/TIME START: 2017-05-24T00:00:00 * DATE/TIME END: 2017-07-18T00:00:00 * MINIMUM ELEVATION: -342.0 m * MAXIMUM ELEVATION: -46.6 m 2020-06-26 text/tab-separated-values, 220 data points https://doi.pangaea.de/10.1594/PANGAEA.919452 https://doi.org/10.1594/PANGAEA.919452 en eng PANGAEA Griesche, Hannes; Seifert, Patric; Ansmann, Albert; Baars, Holger; Barrientos Velasco, Carola; Bühl, Johannes; Engelmann, Ronny; Radenz, Martin; Zhenping, Yin (in review): Application of the shipborne remote sensing supersite OCEANET for profiling of Arctic aerosols and clouds during Polarstern cruise PS106. Atmospheric Measurement Techniques Discussions, https://doi.org/10.5194/amt-2019-434 Griesche, Hannes; Seifert, Patric; Engelmann, Ronny; Radenz, Martin; Bühl, Johannes (2019): Cloudnet IWC during POLARSTERN cruise PS106. Leibniz-Institut für Troposphärenforschung e.V., Leipzig, PANGAEA, https://doi.org/10.1594/PANGAEA.900246 Hogan, Robin J; Mittermaier, Marion P; Illingworth, Anthony J (2006): The Retrieval of Ice Water Content from Radar Reflectivity Factor and Temperature and Its Use in Evaluating a Mesoscale Model. Journal of Applied Meteorology and Climatology, 45(2), 301-317, https://doi.org/10.1175/JAM2340.1 Illingworth, Anthony J; Hogan, Robin J; O'Connor, E J; Bouniol, D; Brooks, M E; Delanoé, J; Donovan, D P; Eastment, J D; Gaussiat, N; Goddard, J W F; Haeffelin, Martial; Klein Baltink, H; Krasnov, O A; Pelon, J; Piriou, J-M; Protat, Alain; Russchenberg, H W J; Seifert, A; Tompkins, A M; van Zadelhoff, G-J; Vinit, F; Willén, U; Wilson, D R; Wrench, C L (2007): Cloudnet: Continuous Evaluation of Cloud Profiles in Seven Operational Models Using Ground-Based Observations. Bulletin of the American Meteorological Society, 88(6), 883-898, https://doi.org/10.1175/BAMS-88-6-883 https://doi.pangaea.de/10.1594/PANGAEA.919452 https://doi.org/10.1594/PANGAEA.919452 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Leibniz-Institut für Troposphärenforschung e.V., Leipzig AC3 Arctic Amplification ARK-XXXI/1.1,PASCAL Cloudnet Cloud Radar CRS DATE/TIME Event label File format File name File size OCEANET-ATMOSPHERE PASCAL Polarstern PS106 PS106_0_Underway-12 PS106_0_Underway-14 PS106/1 TROPOS Uniform resource locator/link to file Dataset 2020 ftpangaea https://doi.org/10.1594/PANGAEA.919452 https://doi.org/10.5194/amt-2019-434 https://doi.org/10.1594/PANGAEA.900246 https://doi.org/10.1175/JAM2340.1 https://doi.org/10.1175/BAMS-88-6-883 2023-01-20T09:13:43Z The dataset contains daily nc-files of the Cloudnet ice water content during Polarstern cruise PS106 based on: - 35.5 GHz Cloud radar MIRA. The data is retrieved using the instrument synergystic approach Cloudnet (Illingworth, 2007 doi:10.1175/BAMS-88-6-883 ). This variable was calculated from the 35.5-GHz radar reflectivity factor after correction for gaseous attenuation, and temperature taken from a forecast model, using the following empirical formula: log10(iwc[g m-3]) = 0.000242Z[dBZ]T[degC] + 0.0699Z[dBZ] + -0.0186T[degC] + -1.63 (Hogan, 2006 doi:10.1175/JAM2340.1 ). In this formula Z is taken to be defined such that all frequencies of radar would measure the same Z in Rayleigh scattering ice. However, the radar is more likely to have been calibrated such that all frequencies would measure the same Z in Rayleigh scattering liquid cloud at 0 degrees C. The measured Z is therefore multiplied by |K(liquid,0degC,35GHz)|^2/0.93 = 0.9441 before applying this formula. The formula has been used where the \"categorization\" data has diagnosed that the radar echo is due to ice, but note that in some cases supercooled drizzle will erroneously be identified as ice. Missing data indicates either that ice cloud was present but it was only detected by the lidar so its ice water content could not be estimated, or that there was rain below the ice associated with uncertain attenuation of the reflectivities in the ice. Note that where microwave radiometer liquid water path was available it was used to correct the radar for liquid attenuation when liquid cloud occurred below the ice; this is indicated a value of 3 in the iwc_retrieval_status variable. There is some uncertainty in thisprodedure which is reflected by an increase in the associated values in the iwc_error variable. When microwave radiometer data were not available and liquid cloud occurred below the ice, the retrieval was still performed but its reliability is questionable due to the uncorrected liquid water attenuation. This is indicated by a value of 2 in the ... Dataset Arctic Arctic PANGAEA - Data Publisher for Earth & Environmental Science Arctic Mira ENVELOPE(10.500,10.500,-70.417,-70.417) ENVELOPE(5.402260,21.734540,78.083530,57.059650) |