[In English] Notice about replacement of the recorder system of F-net ■ Dec 06, 2004   We replaced Quanterra Q680 recording system with JGI MS2000AD's one in order to integrate the F-net system into Hi-net system. The replacement was carried out from November, 2002 to June, 2003 (See Table 1 for details.). With the replacement, only 100Hz sampling WIN format data is recorded by the new system and the data is available in Hi-net website (not F-net website). In the old system, we provided various sampling data (80, 20, 1, 0.1 and 0.01 Hz), so that, converting 100Hz data to 20Hz and 1Hz data, we keep providing those data in F-net website, for user's convenience. Now, 80, 0.1 and 0.01Hz sampling data are not available in any formats (See Table 2 for details).

Table 1. Replacement of the recording system.

Station-Code Station-Name Replacement-Date Station-Code Station-Name Replacement-Date ABU Abuyama 2003/03/12 NOP Nishiokoppe 2002/12/04 ADM Akadomari 2003/03/14 NRW Nariwa 2003/03/17 AMM AmamiOshima 2003/02/13 NSK Nishiki 2003/03/19 AOG Aogashima 2002/06/14 ONS Onishi 2002/12/20 ASI Ashio 2002/12/19 OSW Ogasawara 2002/03/05 FUJ Fujigawa 2003/06/18 SAG Saigo 2002/02/22 FUK Fukue 2003/02/11 SBR Sefuri 2003/02/21 GJM Gojome 2003/05/21 SBT Shibata 2003/04/16 HID Hidaka 2003/05/01 SGN TsuruSugeno 2003/01/07 HJO Hachijo 2002/02/07 SHR Shari 2001/12/21 HRO Hirono 2003/04/09 SIB Shibisan 2002/01/25 HSS Sapporo 2003/06/07 SRN Shiramine 2002/11/13 IGK Ishigaki 2003/02/04 STM Sotome 2003/01/30 IMG Imagane 2003/06/18 TAS Tashiro 2003/02/10 INN Nakatsu 2003/02/28 TGA Taga 2003/03/18 ISI Tokushima 2003/03/05 TGW Tamagawa 2003/03/10 IYG Yamagata 2002/11/19 TKA Takakuma 2003/02/18 IZH Izuhara 2003/02/10 TKD Takeda 2003/02/26 IZH Izuhara 2003/02/10 TKD Takeda 2003/02/26 JIZ Nakaizu 2003/03/24 TKO Takaoka 2003/02/20 KGM Kunigami 2003/02/06 TMC Tomochi 2003/02/19 KIS Kiwa 2003/03/25 TMR Tomari 2003/04/04 KMT Kamitonda 2003/12/18 TSA Nishitosa 2003/03/14 KMU Kamikineusu 2003/06/24 TSK Tsukuba 2004/06/29 KNM Kanayama 2003/01/14 TTO Takato 2003/01/09 KNP Kunneppu 2003/06/13 TYM Tateyama 2003/05/10 KNY Kanaya 2003/04/23 TYS TonoYamasaki 2002/01/10 KSK Kawasaki 2002/11/26 UMJ Umaji 2003/03/12 KSN Kesennuma 2003/04/11 URH Urahoro 2003/06/11 KSR Kushiro 2002/12/12 WJM Wajima 2003/12/19 KYK Nagata 2003/02/25 WTR Watarai 2003/03/20 KZK Kashiwazaki 2003/06/26 YAS Yasaka 2003/03/13 KZS Kozushima 2003/01/24 YMZ Yamizo 2002/12/25 MMA Minmaya 2003/05/15 YNG Yonaguni 2002/03/21 NAA Asahi 2003/01/16 YSI Yoshida 2003/03/26 NKG Nakagawa 2001/12/14 YTY Toyota 2003/03/27 NMR Nemuro 2003/06/03 YZK Yamazaki 2003/03/04 NOK Nokami 2003/03/27 ZMM Zamami 2003/02/05

At Akadomari, Aogashima, Hachijo, Kamitonda, Kushiro, Kozushima, Nakagawa, Nishiokoppe, Ogasawara, Saigo, Shari,Shibisan, Shiramine, Sotome, Tonoyamasaki, Tsukuba, Wajima and Yonaguni stations, the new system is installed from the beginning.

Table 2. Available Data

Sampling rate Old Q680 system New system 100Hz No Yes (WIN from Hi-net) 80Hz Yes No 20Hz Yes Yes 1Hz Yes Yes 0.1Hz Yes No 0.01Hz Yes No

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