instruments:tophat:tophat
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instruments:tophat:tophat [2014/11/21 14:38] – stephanie | instruments:tophat:tophat [2021/01/22 22:17] (current) – external edit 127.0.0.1 | ||
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====== HATPRO-TOPHAT ====== | ====== HATPRO-TOPHAT ====== | ||
- | //Mentor: [[http:// | + | //Mentor: [[http:// |
===== Principle ===== | ===== Principle ===== | ||
- | TOPHAT is a passive microwave radiometer installed at the Forschungszentrum Jülich as part of JOYCE. It measures brightness temperatures at 7 channels along the slope of the water vapor absorption line at 22 GHz and at 7 channels along the slope of the oxygen absorption complex at 60 GHz with allow the retreival of integrated water vapor (IWV), | + | **TOPHAT** is a [[instruments: |
- | cloud liquid water path (LWP) as well as tropospheric temperature profiles. Zenith measurements alternate with rhi and ppi scans. Scan patterns are partially synchronized with the neighbouring cloud radar MIRA. Additionally, | + | cloud liquid water path (LWP) as well as tropospheric temperature profiles. Zenith measurements alternate with rhi and ppi scans. Scan patterns are partially synchronized with the neighbouring cloud radar [[instruments: |
===== Instrument ===== | ===== Instrument ===== | ||
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===== Data ===== | ===== Data ===== | ||
* If you are interested in receiving data please contact: [[http:// | * If you are interested in receiving data please contact: [[http:// | ||
- | * [[http://gop.meteo.uni-koeln.de/ | + | * [[http://atmos.meteo.uni-koeln.de/ |
- | * RHUBC-II: [[: | + | |
- | * Current observations: | + | < |
- | {{http://gop.meteo.uni-koeln.de/ | + | <a href=" |
+ | " target=" | ||
+ | <img src=" | ||
+ | " width=450> | ||
+ | </ | ||
+ | <a href="http://atmos.meteo.uni-koeln.de/ | ||
+ | " target=" | ||
+ | < | ||
+ | " width=450> | ||
+ | </ | ||
+ | </ | ||
+ | |||
+ | The left figure shows the 14 channel brightness temperatures plus relative humidity (RH, top row) and temperature (second row) of the environment. On the right figure, the Integrated Water Vapor (IWV, third row) and Liquid Water Path (LWP, last row) derived from TOPHAT brightness temperatures are displayed. | ||
+ | |||
+ | * RHUBC-II: [[: | ||
===== History ==== | ===== History ==== | ||
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| Frequencies (R1) [GHz] | 22.24, 23.04, 23.84, 25.44, 26.24, 27.84, 31.40 | | | Frequencies (R1) [GHz] | 22.24, 23.04, 23.84, 25.44, 26.24, 27.84, 31.40 | | ||
| Channel band-widths (R1) [MHz] | 230, 230, 230, 230, 230, 230, 230 | | | Channel band-widths (R1) [MHz] | 230, 230, 230, 230, 230, 230, 230 | | ||
- | | Optical Resolution (R1) (HPBW) | + | | Optical Resolution (R1) (HPBW) |
+ | | Temporal Resolution | ||
| Receiver 2 (R2) | oxygen absorption | | Receiver 2 (R2) | oxygen absorption | ||
| Frequencies (R2) [GHz] | 51.26, 52.28, 53.86, 54.94, 56.66, 57.30, 58.00 | | | Frequencies (R2) [GHz] | 51.26, 52.28, 53.86, 54.94, 56.66, 57.30, 58.00 | |
instruments/tophat/tophat.1416577112.txt.gz · Last modified: 2016/04/07 19:53 (external edit)