isce-framework / isce-framework/isce3
(Spec non-compliance) dtype Mismatch: `diagnosticModeFlag` (XML uint8 vs HDF5 uint32)
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- Dominant language
- Python
- Stars
- 239
- Forks
- 90
- Avg merge
- 13d 1h
- Merged PRs (30d)
- 5
Description
Data type mismatch between XML specification and HDF5 implementation for dataset /science/LSAR/identification/diagnosticModeFlag:
- XML spec: uint8
- HDF5 file: uint32
Impact: Affects all 8 NISAR L1/L2 product types
Products Checked
- NISAR_L1_PR_RSLC_001_149_D_080_2005_QPDH_A_20251003T130952_20251003T131016_X05016_N_P_J_001
- NISAR_L1_PR_RIFG_013_118_A_171_014_2000_SH_20260222T102514_20260222T102520_20260306T102515_20260306T102521_X05016_P_P_J_001
- NISAR_L2_PR_GUNW_001_062_A_019_006_2000_SH_20250927T114508_20250927T114542_20251126T114516_20251126T114545_X05016_P_F_J_001
- NISAR_L2_PR_GCOV_001_149_D_080_2005_QPDH_A_20251003T130952_20251003T131016_X05016_N_P_J_001
- NISAR_L2_PR_GOFF_005_106_A_140_006_7700_SH_20251117T140848_20251117T140925_20251129T140849_20251129T140925_X05016_P_P_J_001
- NISAR_L1_PR_ROFF_007_106_A_140_008_7700_SH_20251211T140849_20251211T140926_20251223T140850_20251223T140926_X05016_N_P_J_001
- NISAR_L1_PR_RUNW_007_106_A_140_008_7700_SH_20251211T140849_20251211T140926_20251223T140850_20251223T140926_X05016_N_P_J_001
- NISAR_L2_PR_GSLC_001_149_D_080_2005_QPDH_A_20251003T130952_20251003T131016_X05016_N_P_J_001
cc: @hfattahi @bhawkins @gshiroma @xhuang-jpl @seongsujeong
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by locating the XML definition and HDF5 writer or validator for /science/LSAR/identification/diagnosticModeFlag, then compare how its dtype is selected. Check the behavior against the eight listed NISAR L1/L2 product types; done means the implementation complies with the XML uint8 specification across all products.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python, xml
- Domain
- data
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100