Dataset
ICECAPS-ACE: MIXCRA retrievals of fog properties at Summit Station, Greenland
Abstract
This dataset contains retrievals of bulk fog particle phase and effective radius generated using the mixed-phase cloud property retrieval algorithm (MIXCRA), during twelve case studies of supercooled radiation fog at Summit Station in central Greenland.
MIXCRA uses optimal estimation to retrieve fog microphysical properties at 5-min intervals from downwelling spectral longwave radiation measured by an Atmospheric emitted radiance interferometer (AERI).
These data and retrievals were generated as part of the ICECAPS-ACE project (The Integrated Characterization of Energy, Clouds, Atmospheric state, and Precipitation at Summit:
erosol Cloud Experiment).
See linked references for more information about the implementation of MIXCRA, the AERI measurements and complementary datasets.
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: |
AERI data were collected by the ICECAPS team and published here: https://www.doi.org/10.18739/A2TB0XW2V |
| Data Quality: |
Data are as given by the data provider, no quality control has been performed by the Centre for Environmental Data Analysis (CEDA)
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| File Format: |
NetCDF
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Related Documents
Citations: 1
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.
| Guy, H., Brooks, I.M., Turner, D.D., Cox, C.J., Rowe, P.M., Shupe, M.D., Walden, V.P. & Neely, R.R., III (2023) Observations of Fog‐Aerosol Interactions Over Central Greenland. Journal of Geophysical Research: Atmospheres 128. https://doi.org/10.1029/2023jd038718 https://doi.org/10.1029/2023jd038718 |
Process overview
Instrument/Platform pairings
| Atmospheric emitted radiance interferometer (AERI) | Deployed on: Summit Station Greenland |
Computation Element: 1
| Title | MIXCRA: the mixed-phase cloud property retrieval algorithm |
| Abstract | mixcra2.pro,v 1.12 2022/03/16 00:32:15 dave.turner |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
| Output Description | None |
- var_id: alt
- long_name: Altitude
- units: m MSL
- var_id: cbh
- long_name: Cloud base height
- units: km AGL
- units: degC
- var_id: tcld
- long_name: Cloud temperature
- units: unitless
- var_id: conv
- long_name: Convergence flag
- var_id: corr_itau_ireff
- long_name: Correlated uncertainty between iTau and ireff
- units: unitless (between -1 and +1)
- units: unitless (between -1 and +1)
- var_id: corr_ltau_itau
- long_name: Correlated uncertainty between lTau and iTau
- units: unitless (between -1 and +1)
- var_id: corr_ltau_ireff
- long_name: Correlated uncertainty between lTau and ireff
- units: unitless (between -1 and +1)
- var_id: corr_ltau_lreff
- long_name: Correlated uncertainty between lTau and lreff
- units: unitless (between -1 and +1)
- var_id: corr_lreff_itau
- long_name: Correlated uncertainty between lreff and iTau
- units: unitless (between -1 and +1)
- var_id: corr_lreff_ireff
- long_name: Correlated uncertainty between lreff and ireff
- units: unitless
- var_id: dfs_ireff
- long_name: DFS in ice effective radius
- units: unitless
- var_id: dfs_itau
- long_name: DFS in ice optical depth
- units: unitless
- var_id: dfs_ltau
- long_name: DFS in liquid optical depth
- units: unitless
- var_id: dfs_lreff
- long_name: DFS in liquid water effective radius
- units: s
- var_id: base_time
- long_name: Epoch time since 1 Jan 1970 at 00:00:00 UTC
- var_id: forward_calc
- long_name: Forward calculation
- units: RU
- units: unitless
- var_id: tau_frac
- long_name: Fraction of total optical depth
- units: microns
- var_id: ireff
- long_name: Ice effective radius
- units: unitless
- var_id: itau
- long_name: Ice optical depth
- var_id: lat
- long_name: Latitude
- units: deg N
- units: unitless
- var_id: ltau
- long_name: Liquid optical depth
- units: microns
- var_id: lreff
- long_name: Liquid water effective radius
- long_name: Liquid water path
- var_id: lwp
- units: g/m2
- var_id: lon
- long_name: Longitude
- units: deg E
- units: unitless
- var_id: iter
- long_name: Number of iterations performed
- units: RU
- var_id: obs_vector
- long_name: Observed radiance
- units: RU
- var_id: rms
- long_name: RMS difference (obs minus calc)
- units: degrees
- var_id: sza
- long_name: Solar zenith angle
- units: s
- var_id: time_offset
- long_name: Time since base_time
- units: hours
- var_id: hour
- long_name: Time since midnight UTC
- units: hour
- var_id: delt_lbl
- long_name: Time to closest LBLRTM calculation
- units: hours
- var_id: lblrtm_hour
- long_name: Time when LBLRTM calculation was made
- units: unitless
- var_id: sigma_tau_frac
- long_name: Uncertainty in fraction of total optical depth
- units: microns
- var_id: sigma_ireff
- long_name: Uncertainty in ice effective radius
- units: unitless
- var_id: sigma_itau
- long_name: Uncertainty in ice optical depth
- units: unitless
- var_id: sigma_ltau
- long_name: Uncertainty in liquid optical depth
- units: microns
- var_id: sigma_lreff
- long_name: Uncertainty in liquid water effective radius
- units: g/m2
- var_id: sigma_lwp
- long_name: Uncertainty in liquid water path
- units: RU
- var_id: obs_vector_uncertainty
- long_name: Uncertainty in the observed radiance
- units: cm-1
- var_id: wnum
- long_name: Wavenumber
Co-ordinate Variables
Temporal Range
2013-06-16T00:00:00
2019-09-30T23:59:59
Geographic Extent
72.5750° |
||
-38.4600° |
-38.4600° |
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72.5750° |