Number of avalanche fatalities per hydrological year in Switzerland since 1936-1937

This dataset contains the statistics on the number of avalanche fatalities per hydrological year in Switzerland. The data set commences with the beginning of the hydrological year 1936/37 on 01/10/1936. After the completion of a hydrological year, the new data is appended to the existing dataset. The following information is contained (by column and column title): - hydrological year - number of fatalities in the backcountry (=tour) - number of fatalities in terrain close to ski areas (=offpiste) - number of fatalities on transportation corridors including ski runs, roads, railway lines (=transportation.corridors) - number of fatalities in or around buildings or in settlements (= buildings) - sum (of all four categories) The definition for these four categories as described in the guidelines to the avalanche accident database: **tour**: activities include back-country ski, snowboard or snow-shoe touring **offpiste**: access from ski area, generally from the top of a skilift with short hiking distances **transportation.corridors** ([Techel et al., 2016](http://www.geogr-helv.net/71/147/2016/ )): people travelling or recreating on open or temporarily closed transportation corridors (e.g. a road user or a skier on a ski run) and people working on open or closed transportation corridors (e.g. maintenance crews on roads, professional rescue teams) **buildings** ([Techel et al., 2016](http://www.geogr-helv.net/71/147/2016/ )): people inside or just outside buildings, and workers on high alpine building sites

本数据集收录了瑞士各水文年度（hydrological year）的雪崩遇难人数统计数据。数据集起始于1936/37水文年度，对应起始日期为1936年10月1日。每完成一个水文年度的统计周期后，新的统计数据将追加至现有数据集内。

数据集包含以下列信息（含列标题）：
1. 水文年度
2. 野外区域遇难人数（对应类别tour）
3. 滑雪场周边野雪区域遇难人数（对应类别offpiste）
4. 交通廊道遇难人数（对应类别transportation.corridors，涵盖滑雪道、道路及铁路线）
5. 建筑物及定居点区域遇难人数（对应类别buildings）
6. 上述四类遇难人数的总和

以下为上述四类场景的官方定义，出自《雪崩事故数据库指南》：
- **野外旅游（tour）**：活动包含野外滑雪、单板滑雪或雪鞋徒步旅行
- **野雪区域（offpiste）**：从滑雪场出发的活动，通常从滑雪缆车顶部出发，仅需短距离徒步即可抵达
- **交通廊道（transportation.corridors）**（[Techel等，2016](http://www.geogr-helv.net/71/147/2016/)）：指在开放或临时封闭的交通廊道内出行、休闲的人员（如道路使用者、滑雪道上的滑雪者），以及在开放或封闭的交通廊道内作业的人员（如道路养护人员、专业救援队伍）
- **建筑物区域（buildings）**（[Techel等，2016](http://www.geogr-helv.net/71/147/2016/)）：指建筑物内部或紧邻建筑外侧的人员，以及高海拔山地建筑工地上的工作人员