Dataset
Arctic Cloud Summer Expedition (ACSE): composite cloud layer data for Icebreaker Oden
Abstract
This dataset contains derived cloud layer measurements of Icebreaker Oden utilising data from the National Centre for Atmospheric Science's Atmospheric Measurement Facility's (NCAS AMF) Halo Doppler lidar and NOAA cloud radar on board Icebreaker Oden durning Arctic Cloud Summer Expedition (ACSE). ACSE took place in the Arctic during summer 2014. These measurements were used to complement a suite of other observations taken during the cruise. Those of the UK contribution, as well as selected other data, are available within the associated data collection in the Centre for Environmental Data Analysis (CEDA) archives. Other cruise data may be available in the NOAA ACSE and The Bolin Centre for Climate Research SWERUS (SWEdish-Russian-US) holdings - see online resources linked to this record.
The data provide altitudes of cloud base and top for the first two cloud layers. Cloud base was established from the laser ceilometer (base of liquid cloud) whist he cloud top was established from the cloud radar data.
Where fog was detected, the fog top altitude from the radar data is given. Note: it was possible for the radar to detect a cloud top where the laser ceilometer was not able to detecte a cloud base.
These data were prepared for archiving as NetCDF data at the Centre for Environmental Data Analysis (CEDA) by Ian Brooks, University of Leeds.
The Arctic Cloud Summer Expedition (ACSE) was a collaboration between the University of Leeds, the University of Stockholm, and NOAA-CIRES. ACSE aimed to study the response of Arctic boundary layer cloud to changes in surface conditions in the Arctic Ocean as a working package of the larger Swedish-Russian-US Investigation of Climate, Cryosphere and Carbon interaction (SWERUS-C3) Expedition in Summer 2014. This expedition was a core component to the overall SWERUS-C3 programme and was supported by the Swedish Polar Research Secretariat.
ACSE took place during a 3-month cruise of the Swedish Icebreaker Oden from Tromso, Norway to Barrow, Alaska and back over the summer of 2014. During this cruise ACSE scientists measured surface turbulent exchange, boundary layer structure, and cloud properties. Many of the measurements used remote sensing approaches - radar, lidar, and microwave radiometers - to retrieve vertical profiles of the dynamic and microphysical properties of the lower atmosphere and cloud.
The UK participation of ACSE was funded by the Natural Environment Research Council (NERC, grant: NE/K011820/1) and involved instrumentation from the Atmospheric Measurement Facility of the UK's National Centre for Atmospheric Science (NCAS AMF). This dataset collection contains data mainy from the UK contribution with some additional data from other institutes also archived to complement the suite of meteorological measurements.
Details
| Previous Info: |
No news update for this record
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| Previously used record identifiers: |
No related previous identifiers.
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| Access rules: |
Access to these data is available to any registered CEDA user. Please Login or Register for a CEDA account to gain access.
Use of these data is covered by the following licence(s): http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. |
| Data lineage: |
Data were collected, quality controlled and prepared for archiving by the instrument scientists before upload to the Centre for Environmental Data Analysis (CEDA) for long term archiving. |
| Data Quality: |
Data quality were checked by the ACSE project data author before supplying to CEDA. Further information on quality may be available in related documentation.
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| File Format: |
Data are CF-compliant NetCDF formatted.
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Related Documents
Citations: 16
The following citations have been automatically harvested from external sources associated with this resource where DOI tracking is possible. As such some citations may be missing from this list whilst others may not be accurate. Please contact the helpdesk to raise any issues to help refine these citation trackings.
| Achtert, P., Brooks, I. & Brooks, B. (2018) Arctic Cloud Summer Expedition (ACSE): composite lidar wind profile data from the NCAS AMF Halo Doppler lidar on board Icebreaker Oden. https://doi.org/10.5285/CE693B9C237D4E8CB7968EF76DFC9584 https://doi.org/10.5285/ce693b9c237d4e8cb7968ef76dfc9584 |
| Brooks, I. & Prytherch, J. (2018) Arctic Cloud Summer Expedition (ACSE): high resolution ship motion data from the University of Leeds XSENS MTi-G-700 attitude and heading reference system on board Icebreaker Oden. https://doi.org/10.5285/F2F4675203D04E4EB269E230633D03DB https://doi.org/10.5285/f2f4675203d04e4eb269e230633d03db |
| Brooks, I. & Prytherch, J. (2018) Arctic Cloud Summer Expedition (ACSE): University of Leeds Mobotix camera imagery on board Icebreaker Oden. https://doi.org/10.5285/F2566AC78A664A58A23A42E9E45DA788 https://doi.org/10.5285/f2566ac78a664a58a23a42e9e45da788 |
| Brooks, I. & Salisbury, D.J. (2018) Arctic Cloud Summer Expedition (ACSE): wave statistics, wave spectra and raw buoy displacement data from the University of Leeds Datawell DWR-G4-Waverider buoy deployed from the Icebreaker Oden. https://doi.org/10.5285/72D29F16054D4A8CA056796A8C5D6E3D https://doi.org/10.5285/72d29f16054d4a8ca056796a8c5d6e3d |
| Brooks, I., Salisbury, D.J. & Prytherch, J. (2018) Arctic Cloud Summer Expedition (ACSE): surface temperature measurements from the University of Leeds Heitronics KT15.85 infra red radiative temperature sensor on board Icebreaker Oden. https://doi.org/10.5285/5F3FE268651E497D936A9893F61A043A https://doi.org/10.5285/5f3fe268651e497d936a9893f61a043a |
| DOI exists but metadata could not be retrieved - contact info@doi.org for help with this https://doi.org/10.17043/oden-swerus-2014-ctd-1 |
| error occurred https://doi.org/10.5285/61cd9961ecef43edadae89f842598f47 |
| error occurred https://doi.org/10.5194/cp-2017-56 |
| error occurred https://doi.org/10.5285/ed7d19d3be8d43bbb3ae804418fb7bf4 |
| error occurred https://doi.org/10.5285/0af02f899ac14c218706295d3c6d1c4d |
| error occurred https://doi.org/10.5285/e4b9bd20c2b144e9a34fb2d0ed2d0333 |
| error occurred https://doi.org/10.5285/da84490d169246d381f59bccdfd143f1 |
| Mayer, L. (2018) Mapping and Quantifying Methane Seeps on the Eastern Siberian Shelf and Slope -- A Component of the Swedish Russian U.S. Climate-Cryosphere-Carbon Interactions (SWERUS-C3) Program. https://doi.org/10.18739/A2CZ9N https://doi.org/10.18739/a2cz9n |
| Prytherch, J. & Brooks, I. (2018) Arctic Cloud Summer Expedition (ACSE): turbulence wind and sonic temperature measurements from the University of Leeds Metek USA-100 sonic anemometer on board Icebreaker Oden. https://doi.org/10.5285/BFA8B9457E1A4CB6AA506316295564B2 https://doi.org/10.5285/bfa8b9457e1a4cb6aa506316295564b2 |
| Prytherch, J., Brooks, I. & Salisbury, D.J. (2018) Arctic Cloud Summer Expedition (ACSE): composite flux data for Icebreaker Oden. https://doi.org/10.5285/E58FDADE3A6C46BBAAE7C53E948DD6D0 https://doi.org/10.5285/e58fdade3a6c46bbaae7c53e948dd6d0 |
| Swedish Polar Research Secretariat (SPRS) & Brooks, I. (2018) Arctic Cloud Summer Expedition (ACSE): SPRS Icebreaker Oden ship navigation data. https://doi.org/10.5285/D23F1CDF560F4AE185D1E008D1EEF4B7 https://doi.org/10.5285/d23f1cdf560f4ae185d1e008d1eef4b7 |
Process overview
Instrument/Platform pairings
| NCAS AMF: Halo Doppler Lidar unit 1 | Deployed on: Swedish Maritime Administration Icebreaker Oden |
| NOAA: Portable Cloud Observatory (NPCO) | Deployed on: Swedish Maritime Administration Icebreaker Oden |
| Output Description | None |
- units: m
- var_id: base1
- long_name: first cloud base height (m)
- units: m
- long_name: first cloud top height (m)
- var_id: top1
- units: m
- long_name: fog top height (m)
- var_id: fog
- units: m
- var_id: base2
- long_name: second cloud base height (m)
- units: m
- long_name: second cloud top height (m)
- var_id: top2
- var_id: time
- units: days
- long_name: time as decimal day of year
- var_id: doy
Co-ordinate Variables
Temporal Range
2014-07-05T23:00:00
2014-09-28T22:59:59
Geographic Extent
85.2300° |
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-180.0000° |
180.0000° |
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69.6600° |