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aeri [2020/08/30 19:21] – [Calibrations and data quality assurance procedures] bpospich | aeri [2021/03/01 10:57] (current) – [Link to current observations] bpospich |
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===== Measurement modes ===== | ===== Measurement modes ===== |
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* Vertically pointing observations in two spectral bands | * Vertically pointing observations of downwelling spectral radiance in two spectral bands |
| * Band 1: 520-1800 cm<sup>-1</sup> (5.6-19.2 µm) |
| * Band 2: 1800-3020 cm<sup>-1</sup> (3.3-5.6 µm) |
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===== JOYCE-CF Standard Operation Procedures ===== | ===== JOYCE-CF Standard Operation Procedures ===== |
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* Spectra in both spectral bands with a temporal resolution of 20 seconds with a resolution of 1 cm<sup>-1</sup> | * Radiances in both spectral bands with a temporal resolution of 20 seconds and a spectral resolution of 1 cm<sup>-1</sup> |
| * [[https://www.arm.gov/capabilities/vaps/aerioe|AERI-OE profiles]] using an optimal estimation framework to derive cloud and thermodynamic (temperature, water vapor) profiles using AERI radiances and additional inputs. More information can be found in [[https://doi.org/10.1175/JAMC-D-13-0126.1|Turner and Löhnert 2014 |
===== Calibrations and data quality assurance procedures ===== | ]] |
===== Data availability ===== | ===== Data availability ===== |
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Data are available on request, please fill the {{ :joyce_data_request_form.pdf |data request sheet}} and send it to [[mailto:info@joyce.cloud|info@joyce.cloud]]. | Data are available on request, please fill the {{ :joyce_data_request_form.pdf |data request sheet}} and send it to [[mailto:info@joyce.cloud|info@joyce.cloud]]. |
Both datasets include Doppler spectra, drop spectra, radar reflectivity, rain rate, and fall velocity. | |
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^ Dataset ^ Temporal resolution ^ File size ^ Filename ^ Remarks ^ | ^ Dataset ^ Temporal resolution ^ File size ^ Filename ^ Remarks ^ |
| Raw data (ASCII) | 10 seconds | 1 file per day (~15 MB) | //YYYYMMDD_jue_mrr_raw_txt.gz// | METEK format (zipped) | | | Downwelling radiances Channel 1 | 20 seconds | 1 file per day (~39 MB) | //jueaerich1C1.b1.YYYYMMDD.HHMMSS.cdf// | NetCDF format | |
| IMProToo (NetCDF) | 1 minute | 1 file per day (20-30 MB) | //YYYYMMDD_jue_mrr_improtoo_0-101.nc.gz// | [[https://github.com/maahn/IMProToo|IMProTpo]] product (zipped) | | | Downwelling radiances Channel 2 | 20 seconds | 1 file per day (~37 MB) | //jueaerich1C1.b1.YYYYMMDD.HHMMSS.cdf// | NetCDF format | |
| | AERI-OE profiles (temperature, water vapor, cloud properties) | 10 minutes | 1 file per day (20-25 MB) | //jueaerioe1turnC1.b1.YYYYMMDD.HHMMSS.cdf// | | |
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* [[http://gop.meteo.uni-koeln.de/~Hatpro/dataBrowser/dataBrowser4.html?site=JOYCE&date=-1&UpperLeft=AERI_spectrum1&UpperRight=AERI_status&LowerRight=AERI_rh_dewpt&LowerLeft=AERI_temp_wvmr|Quicklooks archive]] | |
* [[http://webmads.ssec.wisc.edu| AERI on webmads link]]: This link shows the current observation of AERI instruments around the world | |
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* Current observations: | |
{{http://gop.meteo.uni-koeln.de/~hatpro/jue/aeri/AERI_jue_1.png?nocache&w=600}} \\ | |
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===== Link to current observations ===== | ===== Link to current observations ===== |
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Data quicklooks can be found in the [[http://gop.meteo.uni-koeln.de/~Hatpro/dataBrowser/dataBrowser3.html?site=JOYCE&date=-1&UpperLeft=MRR_IMProToo&UpperRight=MRR_AveData&LowerRight=Parsivel-Pluvio-MRR_precipitation-rate]]. | Data quicklooks can be found in the [[http://atmos.meteo.uni-koeln.de/~hatpro/dataBrowser/dataBrowser4.html?site=JOYCE&date=-1&UpperLeft=AERI_spectrum1&UpperRight=AERI_status&LowerRight=AERI_rh_dewpt&LowerLeft=AERI_temp_wvmr|JOYCE quicklook browser]]. |
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| [[http://webmads.ssec.wisc.edu| AERI on webmads link]]: This link shows the current observation of AERI instruments around the world |
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===== Measurement examples ===== | ===== Measurement examples ===== |
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{{wiki:examples:20200617_jue_mrr_improtoo.png?direct&400|MRR_IMProToo}} | Current observations: |
{{wiki:examples:rr_pars_plu_mrr_20200617.png?direct&400|Rain_rate}} \\ | |
//Example time series of MRR observations (left: IMProToo radar reflectivity, spectral width, rain rate and mean spectral noise / right: rain rates from MRR (bottom), compared to Parsivel and Pluvio)// | {{http://gop.meteo.uni-koeln.de/~hatpro/jue/aeri/AERI_jue_1.png?nocache&w=600}} \\ |
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===== Technical Specifications ===== | ===== Technical Specifications ===== |
^ Parameter ^ Specification ^ Remark ^ | ^ Parameter ^ Specification ^ Remark ^ |
|Spectral range receiver 1 | 5-19 µm | corresponds to 2000 to 520 cm<sup>-1</sup> | | |Spectral range receiver 1 | 5.6-19 µm | corresponds to 1800 to 520 cm<sup>-1</sup> | |
|Spectral range receiver 2 | 3.3-5 µm | corresponds to 3000 to 1800 cm<sup>-1</sup> | | |Spectral range receiver 2 | 3.3-5.6 µm | corresponds to 3020 to 1800 cm<sup>-1</sup> | |
|Spectral resolution | 1 cm<sup>-1</sup> | | | |Spectral resolution | 1 cm<sup>-1</sup> | | |
|Number of channels | ~2500 per receiver| | | |Number of channels | ~2500 per receiver| | |