分钟级降雨预报接口/v2.5

本文版本：分钟级降雨预报接口/v2.5，当前稳定版本版本：v2.5，历史版本：v2.2，v2.3，和 v2.4。

授权与认证

请先至彩云开放平台注册，注册后可以获得 token 。

把您的 token 拼到 API 请求的 URL 中，如

https://api.caiyunapp.com/v2.5/TAkhjf8d1nlSlspN/121.6544,25.1552/minutely.json

其中 TAkhjf8d1nlSlspN 就是一个共用测试 token 。不要把私有token 告诉任何人！

请求样例

示例1如下

https://api.caiyunapp.com/v2.5/TAkhjf8d1nlSlspN/121.6544,25.1552/minutely.json

https://api.caiyunapp.com/v2.5/TAkhjf8d1nlSlspN/121.6544,25.1552/minutely.jsonp?callback=MYCALLBACK

token：这里是测试 token ，即 TAkhjf8d1nlSlspN

经纬度：经度在前，纬度在后，中间用半角逗号隔开，这里是 121.6544,25.1552

返回格式：json 或者 jsonp，jsonp 需提供回调函数名

示例2如下

https://api.caiyunapp.com/v2.5/TAkhjf8d1nlSlspN/118.7087,26.9582/minutely?lang=en_US

语言选项 lang：默认为简体中文（zh_CN）、繁体中文（zh_TW）、美式英语（en_US）、英式英语（en_GB）

单位制选项 unit：默认为公制（metric）、科学单位体系（SI） 、英制（imperial）

时区偏移秒数：tzshift：默认为东八区，tzshift=28800；例如：印度东5.5区，tzshift=3600*5.5==19800，v2.3之后版本，返回时区信息，使用秒是为了支持像尼泊尔这样的差 5 小时 45 分钟的地区，它们有非整齐的偏移量；考虑了欧美夏令时。

返回结构和说明

{   status:ok,
    api_version:v2.5,                                                                                                                                            // 版本号
    api_status:active,                                                                                                                                           // 版本号状态
    lang:zh_CN,                                                                                                                                                  // 语言
    unit:metric,                                                                                                                                                 // 单位制
    result:{ forecast_keypoint:Cloudy here but it's raining SE 41 km away,                                                                                                       // 逐小时和逐分钟天气预报，综合自然语言描述
              minutely:{status:ok,                                                                                                                                // 逐日预报模块返回状态
                        description:Cloudy here but it's raining SE 41 km away,                                                                                              // 逐小时天气预报，自然语言描述
                        precipitation_2h:[0.0507,0.0348,0.0211,0.0104,0.0033,0.0,0.0,0.0,0.0,0.0,0.001,0.0016,0.0018,0.0016,0.001,0.0,0.0,0.0,0.0,0.0027,0.0096,0.0208,
                                          0.0369,0.0559,0.0755,0.0934,0.1072,0.1146,0.1139,0.1068,0.0958,0.0831,0.0712,0.0625,0.0587,0.0588,0.061,0.0635,0.0646,0.0625,
                                          0.056,0.0461,0.034,0.0214,0.0096,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0052,0.0114,0.0188,0.0279,0.0388,0.0521,0.0676,0.084,0.0996,
                                          0.1128,0.1218,0.125,0.1213,0.1121,0.0995,0.0857,0.0726,0.0625,0.0568,0.0549,0.0557,0.058,0.0606,0.0625,0.0627,0.0615,0.0593,
                                          0.0567,0.0541,0.0521,0.0509,0.0502,0.0494,0.0481,0.0457,0.0417,0.0357,0.0283,0.0202,0.0123,0.0053,0.0,0.0,0.0,0.0,0.0,0.0,
                                          0.0,0.0008,0.0011,0.001,0.0007,0.0003,0.0,0.0,0.0,0.0,0.0001,0.0002,0.0,0.0,0.0,0.0001,0.0018,0.0051,0.0104,0.0181,0.0276],        // 未来2小时，逐分钟，雷达降水强度预报
                        precipitation:[0.0507,0.0348,0.0211,0.0104,0.0033,0.0,0.0,0.0,0.0,0.0,0.001,0.0016,0.0018,0.0016,0.001,0.0,0.0,0.0,0.0,0.0027,0.0096,0.0208,
                                       0.0369,0.0559,0.0755,0.0934,0.1072,0.1146,0.1139,0.1068,0.0958,0.0831,0.0712,0.0625,0.0587,0.0588,0.061,0.0635,0.0646,0.0625,
                                       0.056,0.0461,0.034,0.0214,0.0096,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0052,0.0114,0.0188,0.0279,0.0388,0.0521,0.0676,0.084]，                // 未来1小时，逐分钟，雷达降水强度预报

                        probability:[0.658591032,0.7041746378,0.5904211998,0.7576189041],                                                                                    // 未来2小时，逐半小时，雷达降水概率预报
                        datasource:radar},
                primary:0},
    location:[27.8943,
             118.1484],                                                                                                                                          // 经纬度
    server_time:1542700934,                                                                                                                                      // 服务器本次返回的utc时间戳
    tzshift:28800                                                                                                                                                // 时区的偏移秒数，如东八区就是 28800 秒
}

变量说明

逐日预报，没有逐日预报的自然语言描述字段

名称	健值路径（jsonpath）	量	时间粒度	地理范围	注释
短临2h降水强度	$.result.minutely.precipitation_2h[：]	雷达降水强度	逐日预报	全球	本地未来2小时逐分钟，短临降水强度预报

支持的单位制

1.目前支持的单位制包括：科学单位体系（SI，大写）、英制（imperial）、公制（不带参数&unit默认公制，公制还包括: metric:v1和metric:v2）:

单位制 要素	SI（科学单位体系）	imperial（英制）	metric:v1（公制v1）	metric:v2（公制v2）	default metric(默认公制)
实况降水量	米/秒(meter/sec)	英寸/小时(in/hr)	雷达降水强度（0~1）	毫米/小时(mm/hr)	雷达降水强度（0~1）
逐分钟降水短临预报降水量	米/秒(meter/sec)	英寸/小时(in/hr)	雷达降水强度（0~1）	毫米/小时(mm/hr)	雷达降水强度（0~1）
逐小时预报降水量	米/秒(meter/sec)	英寸/小时(in/hr)	雷达降水强度（0~1）	毫米/小时(mm/hr)	毫米/小时(mm/hr)
逐日预报降水量	米/秒(meter/sec)	英寸/小时(in/hr)	雷达降水强度（0~1）	毫米/小时(mm/hr)	毫米/小时(mm/hr)
距离	米(m)	英里(mi)	公里(km)	公里(km)	公里(km)
温度	开尔文(K)	华氏度(℉)	摄氏度(℃)	摄氏度(℃)	摄氏度(℃)
气压	帕(Pa)	帕(Pa)	帕(Pa)	帕(Pa)	帕(Pa)
相对湿度	0~1	0~1	0~1	0~1	0~1
风向	从北顺时针(0~360°)	从北顺时针(0~360°)	从北顺时针(0~360°)	从北顺时针(0~360°)	从北顺时针(0~360°)
风速	米/秒（m/s）	英里/小时（mi/hr）	公里/小时（km/hr）	公里/小时（km/hr）	公里/小时（km/hr）
云量	0~1	0~1	0~1	0~1	0~1
能见度	米(m)	英里(mi)	公里(km)	公里(km)	公里(km)

unit=metric:v1时，所有类型中precipitation的单位都是：雷达降水强度（0~1）

unit=metric:v2时，所有类型中precipitation的单位都是：毫米/小时(mm/hr)

2.判断降水等级:

• 带参数&unit=metric:v1，请求实况、分钟级、逐小时和逐日降水强度，单位都为雷达降水强度（0 ~ 1）；

• 雷达降水强度（0 ~ 1）判断降水等级：0.03~0.25 小雨(雪)， 0.25~0.35 中雨(雪)， 0.35~0.48大雨(雪)， >0.48 暴雨(雪)；

• v2.4版本中，本地存在降水时，可以根据skycon（存在于realtime、hourly、daily字段），和skycon_08h_20h和skycon_20h_32h（存在于daily字段），中的：LIGHT_RAIN, MODERATE_RAIN, HEAVY_RAIN, STORM_RAIN(LIGHT_SNOW, MODERATE_SNOW, HEAVY_SNOW，STORM_SNOW)直接获取降水等级

• 大暴雨(雪)和特大暴雨(雪)，需要根据24小时累计公制降水量（mm/24hr）来判断，研发中...