Keiji Imaoka

According to our database, Keiji Imaoka authored at least 24 papers between 2002 and 2024.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2024

Intersensor Calibration of Spaceborne Passive Microwave Radiometers and Algorithm Tuning for Long-Term Sea Ice Trend Analysis Based on AMSR-E Observations.

Mieko Seki, Masahiro Hori, Kazuhiro Naoki, Misako Kachi, Keiji Imaoka

Remote. Sens., October, 2024

2016

GCOM-W1 AMSR2 Level 1R Product: Dataset of Brightness Temperature Modified Using the Antenna Pattern Matching Technique.

Takashi Maeda, Yuji Taniguchi, Keiji Imaoka

IEEE Trans. Geosci. Remote. Sens., 2016

Characteristics of AMSR-E slow rotation data.

Keiji Imaoka, Misako Kachi, Takashi Maeda, Satoko Miura, Susumu Saitoh, Yuji Taniguchi

Proceedings of the 2016 IEEE International Geoscience and Remote Sensing Symposium, 2016

2015

Intercalibration of Advanced Microwave Scanning Radiometer-2 (AMSR2) Brightness Temperature.

Arata Okuyama, Keiji Imaoka

IEEE Trans. Geosci. Remote. Sens., 2015

The water-related parameters and datasets derived from GCOM-W/AMSR2.

Misako Kachi, Takashi Maeda, Hiroyuki Tsutsui, Keiji Imaoka

Proceedings of the 2015 IEEE International Geoscience and Remote Sensing Symposium, 2015

2014

Status of validation of AMSR2 on board the GCOM-W1 satellite.

Misako Kachi, Masahiro Hori, Takashi Maeda, Keiji Imaoka

Proceedings of the 2014 IEEE Geoscience and Remote Sensing Symposium, 2014

2013

AMSR2 validation results.

Misako Kachi, Kazuhiro Naoki, Masahiro Hori, Keiji Imaoka

Proceedings of the 2013 IEEE International Geoscience and Remote Sensing Symposium, 2013

2011

Protection of 6-7GHZ band spaceborne microwave radiometer from interferences to derive sea surface temperature and others.

Korehiro Maeda, Akira Shibata, Keiji Imaoka

Proceedings of the 2011 IEEE International Geoscience and Remote Sensing Symposium, 2011

2010

Global Change Observation Mission (GCOM) for Monitoring Carbon, Water Cycles, and Climate Change.

Keiji Imaoka, Misako Kachi, Hideyuki Fujii, Hiroshi Murakami, Masahiro Hori, Akiko Ono, Tamotsu Igarashi, Keizo Nakagawa, Taikan Oki, Yoshiaki Honda, Haruhisa Shimoda

Proc. IEEE, 2010

AMSR instruments on GCOM-W1/2: Concepts and applications.

Taikan Oki, Keiji Imaoka, Misako Kachi

Proceedings of the IEEE International Geoscience & Remote Sensing Symposium, 2010

2009

AMSR-E and its Follow-on, AMSR2.

Elena S. Lobl, Roy W. Spencer, Keiji Imaoka, Keizo Nakagawa

Proceedings of the IEEE International Geoscience & Remote Sensing Symposium, 2009

2007

Physical Validation of Microwave Properties of Winter Precipitation Over the Sea of Japan.

Kazumasa Aonashi, Toshio Koike, Ken-ichiro Muramoto, Keiji Imaoka, Nobuhiro Takahashi, Guosheng Liu, Yoo-Jeong Noh

IEEE Trans. Geosci. Remote. Sens., 2007

2006

Radio-frequency Interference Signals in the AMSR and Aircraft C-band Measurements.

Keiji Imaoka, Yasuhiro Fujimoto, Yoriko Arai, Akira Shibata, Shinichi Morokuma, Yoshio Sasaki

Proceedings of the IEEE International Geoscience & Remote Sensing Symposium, 2006

2005

A comparison of in situ precipitation with soil moisture retrieved from AMSR-E.

Hidekazu Mikai, Yoriko Arai, Taroh Mutoh, Keiji Imaoka, Akira Shibata

Proceedings of the IEEE International Geoscience & Remote Sensing Symposium, 2005

Multi-year analysis of AMSR-E brightness temperature over homogeneous regions.

Keiji Imaoka, Yasuhiro Fujimoto, Makoto Yoshikawa, Akira Shibata

Proceedings of the IEEE International Geoscience & Remote Sensing Symposium, 2005

Evaluation of AMSR and AMSR-E brightness temperature dataset.

Keiji Imaoka, Yasuhiro Fujimoto, Makoto Yoshikawa, Taroh Mutoh, Akira Shibata

Proceedings of the IEEE International Geoscience & Remote Sensing Symposium, 2005

Investigation of radio frequency interference over Japan using AMSR and AMSR-E data.

Yoriko Arai, Taroh Mutoh, Keiji Imaoka, Yasuhiro Fujimoto, Akira Shibata

Proceedings of the IEEE International Geoscience & Remote Sensing Symposium, 2005

Evaluation of AMSR-E main reflector characteristics using AMSR-E data in aqua roll maneuver.

Yoriko Arai, Keiji Imaoka, Akira Shibata

Proceedings of the IEEE International Geoscience & Remote Sensing Symposium, 2005

2004

On the application of oxygen band channels on Midori-II AMSR.

Keiji Imaoka, Kei Shiomi, Akira Shibata

Proceedings of the 2004 IEEE International Geoscience and Remote Sensing Symposium, 2004

2003

AMSR/AMSR-E level 2 and 3 algorithm developments and data validation plans of NASDA.

Akira Shibata, Keiji Imaoka, Toshio Koike

IEEE Trans. Geosci. Remote. Sens., 2003

The Advanced Microwave Scanning Radiometer for the Earth Observing System (AMSR-E), NASDA's contribution to the EOS for global energy and water cycle studies.

Toneo Kawanishi, Toshihiro Sezai, Yasuyuki Ito, Keiji Imaoka, Toshiaki Takeshima, Yoshio Ishido, Akira Shibata, Masaharu Miura, Hiroyuki Inahata, Roy W. Spencer

IEEE Trans. Geosci. Remote. Sens., 2003

AMSR/AMSR-E sea surface temperature algorithm development.

Akira Shibata, Keiji Imaoka, Misako Kachi, Yasuhiro Fujimoto, Taroh Mutoh

Proceedings of the 2003 IEEE International Geoscience and Remote Sensing Symposium, 2003

Post-launch calibration and data evaluation of AMSR-E.

Keiji Imaoka, Yasuhiro Fujimoto, Misako Kachi, Toshiaki Takeshima, Kei Shiomi, Hidekazu Mikai, Taroh Mutoh, Makoto Yoshikawa, Akira Shibata

Proceedings of the 2003 IEEE International Geoscience and Remote Sensing Symposium, 2003

2002

Instrument characteristics and calibration of AMSR and AMSR-E.

Keiji Imaoka, Toshihiro Sezai, Toshiaki Takeshima, Toneo Kawanishi, Akira Shibata

Proceedings of the IEEE International Geoscience and Remote Sensing Symposium, 2002