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Add TsFile (converted from SanuthK/Wofost-Synthetic-Rice-Simulation-LK)

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- # wofost_rice_lk
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-
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- 从 HuggingFace 数据集 [`SanuthK/Wofost-Synthetic-Rice-Simulation-LK`](https://huggingface.co/datasets/SanuthK/Wofost-Synthetic-Rice-Simulation-LK) 转换为 TsFile 格式。
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-
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- ## 来源
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-
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- - **原始数据集**:[SanuthK/Wofost-Synthetic-Rice-Simulation-LK](https://huggingface.co/datasets/SanuthK/Wofost-Synthetic-Rice-Simulation-LK)
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- - **原作者**:Wanniarachchi S. K. (AgroGate Project)
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- - **许可证**:cc-by-4.0
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-
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- Conversion notes:
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- - Source: SanuthK/Wofost-Synthetic-Rice-Simulation-LK, single parquet (578,394 daily rows).
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- - Synthetic daily rice growth simulations for Sri Lanka (WOFOST 7.2 water-limited model).
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- - TAG (device): Season/Year/Lat/Lon/Irrigation/Nitrogen + a synthesized `replicate` index.
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- Each simulation = one device (3250 total). The 6 scenario columns are stored as tags
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- only, NOT duplicated as numeric fields.
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- - `replicate` is synthesized: a scenario has multiple replicates (randomized weather) with
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- no explicit replicate ID; they are concatenated and detected by Date resets (Date going
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- backwards). Verified: with replicate, device count = 3250 and (device, Date) is unique.
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- - Time: from `Date` (YYYY-MM-DD) parsed to INT64 ms.
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- - FIELD: DVS/LAI/Biomass/Height_cm/Yield_kgha/NDVI/NDRE/S1_VV_dB/S1_VH_dB/S1_ratio (DOUBLE).
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- Yield_kgha is NaN before flowering (DVS>=1) — preserved as null (NOT dropped/filled).
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- - No source columns dropped: all 17 columns preserved (Date->Time, 6 scenario->tags, 10 fields).
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-
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-
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- ## 转换说明
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- - 转换路径:`script`
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- - 时间精度:`ms`
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- - 自定义脚本:`scripts/converters/wofost_rice_lk.py`
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-
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- ## 用法
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-
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- ```python
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- # TsFile Java/Python SDK 读取 data.tsfile
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- ```
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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+ ---
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+ language:
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+ - en
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+ license: cc-by-4.0
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+ tags:
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+ - agriculture
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+ - crop-simulation
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+ - remote-sensing
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+ - synthetic-data
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+ - timeseries
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+ - tsfile
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+ - wofost
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+ - rice
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+ - sri-lanka
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+ task_categories:
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+ - time-series-forecasting
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+ - tabular-regression
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+ pretty_name: Sri Lanka Paddy Rice WOFOST Simulation (TsFile)
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+ ---
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+
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+ # Wofost Synthetic Rice Simulation LK (TsFile)
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+
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+ 斯里兰卡水稻 WOFOST 7.2 合成模拟数据集,从 HuggingFace 数据集
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+ [`SanuthK/Wofost-Synthetic-Rice-Simulation-LK`](https://huggingface.co/datasets/SanuthK/Wofost-Synthetic-Rice-Simulation-LK)
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+ 转换为 [Apache TsFile](https://tsfile.apache.org/) 格式。
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+
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+ ## 文件
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+
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+ - `wofost_rice_lk.tsfile` —— 578,394 条日records,3,250 条独立模拟序列。
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+
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+ ## TsFile 表模型映射
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+
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+ - **TAG(device)**:`Season` / `Year` / `Lat` / `Lon` / `Irrigation` / `Nitrogen` +
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+ 合成的 `replicate` 序号。每条 simulation = 一个 device(共 3,250 个)。这 6 个 scenario
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+ 列仅作 tag,不重复存为数值 field。
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+ - **Time**:由 `Date`(YYYY-MM-DD)解析为 INT64 毫秒。
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+ - **FIELD**:`DVS` / `LAI` / `Biomass` / `Height_cm` / `Yield_kgha` / `NDVI` / `NDRE` /
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+ `S1_VV_dB` / `S1_VH_dB` / `S1_ratio`(均为 DOUBLE)。`Yield_kgha` 在开花(DVS≥1)前为
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+ NaN,保留为 null。
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+
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+ ## 转换说明
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+
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+ - **未丢弃任何源列**:17 列全部保留(Date→Time,6 个 scenario→tag,10 个数值→field)。
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+ - **`replicate` 为合成列**:同一 scenario 有多个 replicate(天气随机化),但原数据无显式
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+ replicate ID。多个 replicate 顺序拼接,在 Date 回退处分界,据此累计出 replicate 序号。
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+ 验证:加上 replicate 后 device 数 = 3,250,`(device, Date)` 完全唯一。
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+ - 转换路径:`script`(`scripts/converters/wofost_rice_lk.py`),时间精度 `ms`。
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+ - 行数转换前后一致(578,394),已通过行数比对 + 读回校验,无去重、无丢行。
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+
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+ > 关于体积:原始 parquet 约 16 MB,转换后 tsfile 约 21 MB。源数据约 51% 的数值单元为
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+ > NaN(出苗/开花前),parquet 用 RLE 把这些 NaN 游程压到近乎为零;TsFile 因按 device 切分
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+ > (3,250 个 device × 10 列 ≈ 3.2 万个小 chunk)元数据开销较高、对 NaN 游程压缩较弱,故略大。
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+ > 两者数据完全一致。
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+
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+ ## 来源
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+
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+ - 原始数据集:[SanuthK/Wofost-Synthetic-Rice-Simulation-LK](https://huggingface.co/datasets/SanuthK/Wofost-Synthetic-Rice-Simulation-LK)
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+ - 原作者:Wanniarachchi S. K.(AgroGate Project)
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+ - 模型:PCSE / WOFOST 7.2;天气:NASA POWER
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+ - 许可证:CC-BY 4.0