SHIKISAI Portal

A

[Target products]

• RSRF
• Products (L2, L3) that input RSRF
• NDVI、EVI、SDI、LAI、FPAR、AGB、VRI、ARNP、CLPR

[Abnormalities in RSRF]
Target period: After April 8th, 2023
Targeted products: List of target products（Updated every Wednesday）

Phenomenon:

1. Due to an algorithm malfunction, abnormalities such as unnaturally low values are observed in certain pixels for specific bands (Rs_SW02, Rs_VN05, Rs_VN08).
2. There are unnatural missing values.

Countermeasure:

1. The revised algorithm (Ver.3003) was updated on May 30, 2024. However, despite the revision, RSRF anomalies persist. We will continue to monitor the affected products and explore recovery measures.
2. Monitoring of affected data and restoration is under review.

[Unprovided RSRF]
Target data:

• 2024/2/1 UT11:00 - 16:00
• 2024/2/2 UT12:00 - 15:00
• 2024/2/4 UT11:00 - 14:00
• 2024/2/5 UT11:00 - 16:00

Phenomenon: There are some products that have become unavailable due to an error during data processing.
Countermeasure: Under investigation

[Invalid Attributes Timestamp]
Affected Products (NDVI, a downstream product of RSRF):

• GC1SG1_20240709D01D_D0000_3MSG_NDVIF_3000.h5
• GC1SG1_20240709D01D_X0000_3BSG_NDVIF_3000.h5
• GC1SG1_20240710D01D_D0000_3MSG_NDVIF_3000.h5
• GC1SG1_20240710D01D_X0000_3BSG_NDVIF_3000.h5
• GC1SG1_20240712D01D_D0000_3MSG_NDVIF_3000.h5
• GC1SG1_20240712D01D_X0000_3BSG_NDVIF_3000.h5

Issue: An abnormal timestamp (41 hours) is recorded in the attributes.
Status: Investigation in progress.

[Abnormal QA Flags in Monthly Statistics]
Affected Products:

• GC1SG1_20200401D01M_D0000_3MSG_RV06F_3000.h5
• GC1SG1_20200401D01M_D0000_3MSG_RV11F_3000.h5

Issue: Areas that should be classified as land are incorrectly flagged as water in the QA flag.
Status: Investigation in progress.

Last update: 2025/03/28