Introduction
The Direct Broadcast Network (DBNet) aims to provide near real-time access to near-global data from low earth orbit (LEO) satellites
to meet the timeliness requirements of regional and global numerical weather prediction (NWP) and other applications in a cost-efficient manner.
The goal of the DBNet activity is to provide NWP centers with ATOVS data received from DBNet direct readout stations within 30 minutes of data acquisition.
DBNet is expanding the regional ATOVS retransmission services (RARS) concept to other data types in support of a wide range of applications.
The current and potential DBNet services are listed below.
| Categories of Services | Services(Instruments) |
|---|---|
| IR/MW sounding | ATOVS(AMSU-A, MHS, HIRS), ATMS, VASS(MWTS/2, MWHS/2, IRAS) |
| IR/VIS imaging | VIIRS, AVHRR, MERSI |
| Hyperspectral IR sounding | CrIS, IASI, HIRAS, AIRS |
| Scatterometry | ASCAT, Wind RAD |
| MW imagery | MWRI |
KMA Contribution to DBNet
The service offered by Jincheon site to the DBNet community consists of:
- AMSU-A, MHS, and IASI data of METOP-B and METOP-C
- ATMS data of S-NPP
- ATMS and CrIS data of NOAA-20
| HRPT Station | Coordinates | Operator | Availability |
|---|---|---|---|
| Jincheon | 36.99N, 127,43E, 154m | KMA | Operational |
| * AAPP : ATOVS & AVHRR Pre-processing Package | * RT-STPS: Real-Time Software Telemetry Processing System |
| * CSPP : Community Satellite Processing Package | * MIRS: Microwave Integrated Retrieval System |
| * AHRPT: Advanced High Resolution Picture Transmission | * UW-HSRTV: University of Wisconsin-madison Hyper Spectral Retrieval |
| * OPS-LRS: Operation Software - Local Reception Station | * NUCAPS: NOAA Unique CrIS/ATMS Product System |
| * GTS: Global Telecommunication System | * DBNet: The Direct Broadcast Network |
| * NWP: Numerical Weather Prediction | * HEAP: Hyper-Spectral Enterprise Algorithm Package |
| * ATOVS: Advanced TIROS Operational Vertical Sounder | * IASI: Infrared Atmospheric Sounding Interferomete |
| * ATMS: Advanced Technology Microwave Sounder | * CrIS: Cross-track Infrared Sounder |
| * MHS: Microwave Humidity Sounder | * TDR: Temperature Data Records |
| * SDR: Sensor Data Records | * EDR: Environmental Data Records |
Issues
- Software : AAPP 8.10 has been operated since May 15th of 2023
- Hardware : 2.4m Antenna
- Acquisition Scheduling : 20 times a day (5 satellite ⅹ 4 times in max)
- Telecommunications: GTS between Seoul and Tokyo at a speed of 6Mbps