通用预报接口/v2.2
本文版本：通用预报接口/v2.2，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/TAkhjf8d1nlSlspN/121.6544,25.1552/weather.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/TAkhjf8d1nlSlspN/121.6544,25.1552/weather.json
https://api.caiyunapp.com/v2/TAkhjf8d1nlSlspN/121.6544,25.1552/weather.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/TAkhjf8d1nlSlspN/121.6544,25.1552/weather?lang=en_US&hourlysteps=2&daylysteps=2&getplacename=True经纬度附近地址中英文名称 getplacename：True
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
定制返回逐小时预报总小时数 hourlysteps：默认为120小时
定制返回逐日预报总日数 daylysteps：默认为5天
定制返回变量列表 fields：tmp,vis 默认返回所有变量，【'ast', 'rad', 'prc', 'tmp', 'wnd', 'hmd', 'cld', 'aqi', 'pm25', 'pm25w', 'sky', 'skyh', 'lfi', 'alr', 'pres', 'vis', 'dswrf'】
定制是否返回气象预警信息（中国气象局预警中心）alert：true （注意不要大写）
定制返回数据的起始时刻 begin：begin=1543072172 utc时间戳整数（可以返回最近的历史两天数据）
返回结构和说明
realtime分字段含义，请移步：实况接口/v2.2
minutely分字段含义，请移步：逐分钟降水短临预报接口/v2.2
hourly分字段含义，请移步：逐小时预报接口/v2.2
daily分字段含义，请移步：逐日预报接口/v2.2
alert分字段含义：
{ status:ok,
api_version:v2.2,
api_status:active,
unit:metric,
lang:en_US,
result:{
forecast_keypoint:cloudy, clear weather after 23 this midnight,
primary:0,
realtime:{status:ok, ###请移步：实况接口/v2.2
temperature:-1.21,
pres:56320.24,
humidity:0.09,
wind:{direction:284.91,speed:30.12}},
precipitation:{local:{status:ok,intensity:0.0,datasource:gfs}},
cloudrate:0.3,
dswrf:677.9,
visibility:24.1,
skycon:PARTLY_CLOUDY_DAY,
ultraviolet:{index:5.0,desc:Moderat},
comfort:{index:11,desc:Icy wind cold},
pm25:3,
pm10:10.0,
o3:97.0,
no2:2.0,
so2:7.0,
co:0.4,
aqi:10,
hourly:{status:ok,
description:cloudy, clear weather after 23 this midnight,
temperature:[{value:-1.21,datetime:2018-11-20 16:00},{value:-0.51,datetime:2018-11-20 17:00}]},
pres:[{value:56320.2411405722,datetime:2018-11-20 16:00},{value:56309.4272949293,datetime:2018-11-20 17:00}],
humidity:[{value:0.09,datetime:2018-11-20 16:00},{value:0.11,datetime:2018-11-20 17:00}],
wind:[{direction:284.91,speed:30.12,datetime:2018-11-20 16:00},{direction:288.24,speed:32.91,datetime:2018-11-20 17:00}],
precipitation:[{value:0.0,datetime:2018-11-20 16:00},{value:0.0,datetime:2018-11-20 17:00}],
cloudrate:[{value:0.3,datetime:2018-11-20 16:00},{value:0.3,datetime:2018-11-20 17:00}],
dswrf:[{value:677.9121814107,datetime:2018-11-20 16:00},{value:596.25984,datetime:2018-11-20 17:00}],
visibility:[{value:24.1,datetime:2018-11-20 16:00},{value:24.1,datetime:2018-11-20 17:00}],
skycon:[{value:PARTLY_CLOUDY_DAY,datetime:2018-11-20 16:00},{value:WIND,datetime:2018-11-20 17:00}],
pm25:[{value:3,datetime:2018-11-20 16:00},{value:0,datetime:2018-11-20 17:00}],
aqi:[{value:10,datetime:2018-11-20 16:00},{value:0,datetime:2018-11-20 17:00}],
daily:{status:ok,
temperature:[{date:2018-11-20,max:1.19,avg:-4.35,min:-16.0},{date:2018-11-21,max:2.0,avg:-7.32,min:-18.0}],
pres:[{date:2018-11-20,max:56600.24,avg:56422.06,min:56309.43},{date:2018-11-21,max:56833.63,avg:56653.05,min:56553.63}],
humidity:[{date:2018-11-20,max:0.23,avg:0.14,min:0.09},{date:2018-11-21,max:0.15,avg:0.11,min:0.06}],
wind:[{date:2018-11-20,max:{direction:290.25,speed:35.9},avg:{direction:278.27,speed:19.65},min:{direction:230.17,speed:4.77}},
{date:2018-11-21,max:{direction:276.13,speed:43.0},avg:{direction:262.47,speed:24.54},min:{direction:216.1,speed:12.48}}],
precipitation:[{date:2018-11-20,max:0.0,avg:0.0,min:0.0},{date:2018-11-21,max:0.0,avg:0.0,min:0.0}],
dswrf:[{date:2018-11-20,max:743.7,avg:321.5,min:0.0},{date:2018-11-21,max:748.3,avg:202.3,min:0.0}],
cloudrate:[{date:2018-11-20,max:0.76,avg:0.49,min:0.0},{date:2018-11-21,max:0.15,avg:0.02,min:0.0}],
visibility:[{date:2018-11-20,max:24.1,avg:24.1,min:24.1},{date:2018-11-21,max:24.1,avg:24.1,min:24.1}],
skycon:[{date:2018-11-20,value:PARTLY_CLOUDY_DAY},{date:2018-11-21,value:CLEAR_DAY}],
skycon_08h_20h:[{date:2018-11-20,value:CLEAR_DAY},{date:2018-11-21,value:CLEAR_DAY}]},
skycon_20h_32h:[{date:2018-11-20,value:PARTLY_CLOUDY_NIGHT},{date:2018-11-21,value:CLEAR_NIGHT}],
ultraviolet:[{index:5,desc:Very high,datetime:2018-11-20},{index:5,desc:Very high,datetime:2018-11-21}],
comfort:[{index:13,desc:Dry cold,datetime:2018-11-20},{index:13,desc:Dry cold,datetime:2018-11-21}],
carWashing:[{index:1,desc:Suitable,datetime:2018-11-20},{index:1,desc:Suitable,datetime:2018-11-21}],
coldRisk:[{index:4,desc:Extremely prone,datetime:2018-11-20},{index:4,desc:Extremely prone,datetime:2018-11-21}],
dressing:[{index:8,desc:Extremely cold,datetime:2018-11-20},{index:8,desc:Extremely cold,datetime:2018-11-21}],
pm25:[{date:2018-11-20,max:3,avg:1.12,min:0},{date:2018-11-21,max:1,avg:0.58,min:0}],
aqi:[{date:2018-11-20,max:10,avg:1.25,min:0},{date:2018-11-21,max:0,avg:0.0,min:0}],
astro:[{date:2018-11-20,sunset:{time:19:07},sunrise:{time:08:40}},{date:2018-11-21,sunset:{time:19:07},sunrise:{time:08:41}}],
minutely:{status:ok, ###请参考：逐分钟降水短临预报接口
precipitation_2h:[0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,
0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,
0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,
0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,
0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0],
precipitation:[0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,
0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,
0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0],
datasource:gfs,
description:No snow in the next hour},
alert:{alert:{status:"ok"
content:{
0:{ request_status: "ok",
source: "国家预警信息发布中心",
county: "无",
province: "江苏省",
regionId: "unknown"
city: "南京市",
code: "1303",
adcode: "320100",
alertId: "32010041600000_20181130104521",
status: "预警中",
title: "南京市气象台发布霾橙色预警[Ⅱ级/严重]",
description: "南京市气象台2018年11月30日10时41分升级霾黄色预警信号为霾橙色预警信号。目前我市已经出现中度霾，预计未来24小时内霾将持续，请注意防范。"
location: "江苏省南京市",
latlon: {
0: 32.060255,
1: 118.796877
}
pubtimestamp: 1543545921,
}
}
}
placename:Nyima, Nagqu, Tibet, China,
location:[31.658613,
87.815109]
server_time:1542702509,
tzshift:28800,
}
