Rainfall-Induced Attenuation Correction for Two Operational Dual-Polarization C-Band Radars in the Netherlands

被引:4
|
作者
Overeem, Aart [1 ,2 ]
de Vries, Hylke [3 ]
Al Sakka, Hassan [4 ]
Uijlenhoet, Remko [2 ,5 ]
Leijnse, Hidde [1 ,2 ]
机构
[1] Royal Netherlands Meteorol Inst, R&D Observat & Data Technol, De Bilt, Netherlands
[2] Wageningen Univ & Res, Hydrol & Quantitat Water Management Grp, Wageningen, Netherlands
[3] Royal Netherlands Meteorol Inst, R&D Weather & Climate Modelling, De Bilt, Netherlands
[4] Leonardo Germany GmbH, Neuss, Germany
[5] Delft Univ Technol, Fac Civil Engn & Geosci, Dept Water Management, Delft, Netherlands
关键词
Precipitation; Radars; Radar observations; Rainfall; Remote sensing; BIAS ADJUSTMENT; WEATHER RADAR; FUZZY-LOGIC; PRECIPITATION; PERFORMANCE; ALGORITHMS; RETRIEVAL; RANGE; MODEL; QPE;
D O I
10.1175/JTECH-D-20-0113.1
中图分类号
P75 [海洋工程];
学科分类号
0814 ; 081505 ; 0824 ; 082401 ;
摘要
The Royal Netherlands Meteorological Institute (KNMI) operates two operational dual-polarization C-band weather radars providing 2D radar rainfall products. Attenuation can result in severe underestimation of rainfall amounts, particularly in convective situations that are known to have high impact on society. To improve the radar-based precipitation estimates, two attenuation correction methods are evaluated and compared: 1) modified Kraemer (MK) method, i.e., Hitschfeld-Bordan where parameters of the power-law Z(h)-k(h) relation are adjusted such that reflectivities in the entire dataset do not exceed 59 dBZ(h) and attenuation correction is limited to 10 dB; and 2) using two-way path-integrated attenuation computed from the dual-polarization moment specific differential phase K-dp (Kdp method). In both cases the open-source Python library wradlib is employed for the actual attenuation correction. A radar voxel only contributes to the computed path-integrated attenuation if its height is below the forecasted freezing-level height from the numerical weather prediction model HARMONIE-AROME. The methods are effective in improving hourly and daily quantitative precipitation estimation (QPE), where the Kdp method performs best. The verification against rain gauge data shows that the underestimation diminishes from 55% to 37% for hourly rainfall for the Kdp method when the gauge indicates more than 10 mm of rain in that hour. The improvement for the MK method is less pronounced, with a resulting underestimation of 40%. The stability of the MK method holds a promise for application to data archives from single-polarization radars.
引用
收藏
页码:1125 / 1142
页数:18
相关论文
共 50 条
  • [21] PROPAGATION EFFECTS AND APPLICATION OF PHASE INFORMATION FOR C-BAND DUAL-POLARIZATION RADAR
    苏德斌
    徐宝祥
    Acta Meteorologica Sinica, 1997, (03) : 338 - 351
  • [22] Dual-Polarization C-Band Radar Observations of Sea Ice in the Amundsen Gulf
    Partington, Kim C.
    Flach, J. Dominic
    Barber, David
    Isleifson, Dustin
    Meadows, Peter J.
    Verlaan, Paul
    IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2010, 48 (06): : 2685 - 2691
  • [23] Attenuation Correction Effects in Rainfall Estimation at X-Band Dual-Polarization Radar: Evaluation with a Dense Rain Gauge Network
    Oh, Young-A
    Lee, DaeHyung
    Jung, Sung-Hwa
    Nam, Kyung-Yeub
    Lee, GyuWon
    ADVANCES IN METEOROLOGY, 2016, 2016
  • [24] C-band Dual-Polarization Radar Observations of a Massive Volcanic Eruption in South America
    Vidal, Luciano
    Nesbitt, Stephen W.
    Salio, Paola
    Farias, Camila
    Gabriela Nicora, Maria
    Soledad Osores, Maria
    Mereu, Luigi
    Marzano, Frank S.
    IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, 2017, 10 (03) : 960 - 974
  • [25] Airborne Dual-Polarization Observations of the Sea Surface NRCS at C-Band in High Winds
    Sapp, Joseph W.
    Frasier, Stephen J.
    Dvorsky, Jason
    Chang, Paul S.
    Jelenak, Zorana
    IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, 2013, 10 (04) : 726 - 730
  • [26] C-band dual-polarization SAR images sea surface wind speed inversion
    Wei, Qisong
    Cheng, Yi
    2024 5TH INTERNATIONAL CONFERENCE ON GEOLOGY, MAPPING AND REMOTE SENSING, ICGMRS 2024, 2024, : 212 - 215
  • [27] Calibration Accuracy of the Dual-Polarization Receivers of the C-Band Swiss Weather Radar Network
    Gabella, Marco
    Boscacci, Marco
    Sartori, Maurizio
    Germann, Urs
    ATMOSPHERE, 2016, 7 (06):
  • [28] Drop size distribution retrieval using dual-polarization radar at C-band and S-band
    Durbin, Daniel
    Wang, Yadong
    Chang, Pao-Liang
    ATMOSPHERIC MEASUREMENT TECHNIQUES, 2024, 17 (17) : 5397 - 5411
  • [29] Measurement of Precipitation in the Alps Using Dual-Polarization C-Band Ground-Based Radars, the GPM Spaceborne Ku-Band Radar, and Rain Gauges
    Gabella, Marco
    Speirs, Peter
    Hamann, Ulrich
    Germann, Urs
    Berne, Alexis
    REMOTE SENSING, 2017, 9 (11):
  • [30] Evaluation and improvement of C-band radar attenuation correction for operational flash flood forecasting
    Jacobi, Stephan
    Heistermann, Maik
    Pfaff, Thomas
    WEATHER RADAR AND HYDROLOGY, 2012, 351 : 33 - +