Validation and Ground Truth for TRMM Precipitation Radar Using the MU Radar

Toru SATO; Toshihiro TERAOKA; Iwane KIMURA

Validation and Ground Truth for TRMM Precipitation Radar Using the MU Radar

Toru SATO, Toshihiro TERAOKA, Iwane KIMURA

Full Text Views

0

Cite this

Summary :

The MU radar of Japan is one of important candidates for providing accurate ground truth for the TRMM precipitation radar. It can provide the dropsize distribution data together with the background atmospheric wind data with high accuracy and high spatial resolution. Special observation scheme developed for TRMM validation using the MU radar is described, and preliminary results from its test experiment are shown. The high-resolution MU radar data are also used in numerical simulations to validate the rain retrieval algorithm for the TRMM PR data analysis. Among known sources of errors in the rain retrieval, the vertical variability of the dropsize distribution and the partial beam-filling effect are examined in terms of their significance with numerical simulations based on the MU radar data. It is shown that these factors may seriously affect the accuracy of the TRMM rain retrieval, and that it is necessary to establish statistical means for compensation. However, suggested means to improve the conventional α-adjustment method require careful treatment so that they do not introduce new sources of errors.

Publication: IEICE TRANSACTIONS on Communications Vol.E79-B No.6 pp.744-750

Publication Date: 1996/06/25

Publicized

Online ISSN

DOI

Type of Manuscript: Special Section PAPER (Special Issue on Weather Radar Technology)

Category

Cite this

Copy

Toru SATO, Toshihiro TERAOKA, Iwane KIMURA, "Validation and Ground Truth for TRMM Precipitation Radar Using the MU Radar" in IEICE TRANSACTIONS on Communications, vol. E79-B, no. 6, pp. 744-750, June 1996, doi: .
Abstract: The MU radar of Japan is one of important candidates for providing accurate ground truth for the TRMM precipitation radar. It can provide the dropsize distribution data together with the background atmospheric wind data with high accuracy and high spatial resolution. Special observation scheme developed for TRMM validation using the MU radar is described, and preliminary results from its test experiment are shown. The high-resolution MU radar data are also used in numerical simulations to validate the rain retrieval algorithm for the TRMM PR data analysis. Among known sources of errors in the rain retrieval, the vertical variability of the dropsize distribution and the partial beam-filling effect are examined in terms of their significance with numerical simulations based on the MU radar data. It is shown that these factors may seriously affect the accuracy of the TRMM rain retrieval, and that it is necessary to establish statistical means for compensation. However, suggested means to improve the conventional α-adjustment method require careful treatment so that they do not introduce new sources of errors.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e79-b_6_744/_p

Copy

@ARTICLE{e79-b_6_744,
author={Toru SATO, Toshihiro TERAOKA, Iwane KIMURA, },
journal={IEICE TRANSACTIONS on Communications},
title={Validation and Ground Truth for TRMM Precipitation Radar Using the MU Radar},
year={1996},
volume={E79-B},
number={6},
pages={744-750},
abstract={The MU radar of Japan is one of important candidates for providing accurate ground truth for the TRMM precipitation radar. It can provide the dropsize distribution data together with the background atmospheric wind data with high accuracy and high spatial resolution. Special observation scheme developed for TRMM validation using the MU radar is described, and preliminary results from its test experiment are shown. The high-resolution MU radar data are also used in numerical simulations to validate the rain retrieval algorithm for the TRMM PR data analysis. Among known sources of errors in the rain retrieval, the vertical variability of the dropsize distribution and the partial beam-filling effect are examined in terms of their significance with numerical simulations based on the MU radar data. It is shown that these factors may seriously affect the accuracy of the TRMM rain retrieval, and that it is necessary to establish statistical means for compensation. However, suggested means to improve the conventional α-adjustment method require careful treatment so that they do not introduce new sources of errors.},
keywords={},
doi={},
ISSN={},
month={June},}

Copy

TY - JOUR
TI - Validation and Ground Truth for TRMM Precipitation Radar Using the MU Radar
T2 - IEICE TRANSACTIONS on Communications
SP - 744
EP - 750
AU - Toru SATO
AU - Toshihiro TERAOKA
AU - Iwane KIMURA
PY - 1996
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E79-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 1996
AB - The MU radar of Japan is one of important candidates for providing accurate ground truth for the TRMM precipitation radar. It can provide the dropsize distribution data together with the background atmospheric wind data with high accuracy and high spatial resolution. Special observation scheme developed for TRMM validation using the MU radar is described, and preliminary results from its test experiment are shown. The high-resolution MU radar data are also used in numerical simulations to validate the rain retrieval algorithm for the TRMM PR data analysis. Among known sources of errors in the rain retrieval, the vertical variability of the dropsize distribution and the partial beam-filling effect are examined in terms of their significance with numerical simulations based on the MU radar data. It is shown that these factors may seriously affect the accuracy of the TRMM rain retrieval, and that it is necessary to establish statistical means for compensation. However, suggested means to improve the conventional α-adjustment method require careful treatment so that they do not introduce new sources of errors.
ER -