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ERA5-再分析資料 (單層, 即時)
資料集詮釋資料
資料集所屬單位
歐洲中期天氣預報中心
授權方式
依政府資料開放平臺使用規範
更新狀態
持續更新
更新頻率
不定時
資料時區
UTC+0
資料頻率
1小時
下載資料格式
NetCDF
封裝檔案頻率
1份/日
資料說明
  • 本資料集由歐洲中期天氣預報中心(European Centre for Medium-Range Weather Forecasts, ECMWF)提供,收錄在部分劇烈天氣事件期間下的第五代全球氣候大氣再分析資料(ECMWF Reanalysis v5, ERA5)。
  • 資料屬性說明如下:
    • 類型:格點資料
    • 資料時區:UTC+0
    • 資料頻率:1筆/小時
    • 緯向範圍:90°E~150°E
    • 經向範圍:0°~50°N
    • 水平解析度:0.25°×0.25°
    • 垂直解析度:(無)
  • 資料參數說明如下:
參數代號名稱單位
u10離地10米東向風速
(10m u-component of wind)
m s-1
v10離地10米北向風速
(10m v-component of wind)
m s-1
u10n離地10米東向中性風風速
(10m u-component of neutral wind)
m s-1
v10n離地10米北向中性風風速
(10m v-component of neutral wind)
m s-1
i10fg離地10米瞬間陣風
(Instantaneous 10m wind gust)
*陣風:3秒間隔內平均最大風力
m s-1
u100離地100米東向風速
(100m u-component of wind)
m s-1
v100離地100米北向風速
(100m v-component of wind)
m s-1
skt地表溫度
(Skin temperature)
K
sst海表溫度
(Sea surface temperature)
K
t2m離地2米溫度
(2m temperature)
K
d2m離地2米露點溫度
(2m dewpoint temperature)
K
msl平均海平面氣壓
(Mean sea level pressure)
Pa
sp地表氣壓
(Surface pressure)
Pa
z地表重力位
(Geopotential)
m2 s-2
lsrr降雨強度
(Large scale rain rate)
kg m-2 s-1
crr對流方案下降雨強度
(Convective rain rate)
kg m-2 s-1
ilspf地表瞬間降水覆蓋率[0~1]
(Instantaneous large-scale surface precipitation fraction)
(無)
ptype降水型態
(Precipitation type)
(0: 無降水、1: 雨、3: 凍雨、5: 雪、6: 溼雪、7: 雨/雪混合、8: 冰粒)
(無)
tcrw總降雨量
(Total column rain water)
kg m-2
lssfr降雪強度之水當量
(Large scale snowfall rate water equivalent)
kg m-2 s-1
csfr對流方案下降雪強度之水當量
(Convective snowfall rate water equivalent)
kg m-2 s-1
tcsw總降雪量
(Total column snow water)
kg m-2
stl1第一層(0~7公分)地溫/土壤溫度
(Soil temperature level 1)
K
stl2第二層(7~28公分)地溫/土壤溫度
(Soil temperature level 2)
K
stl3第三層(28~100公分)地溫/土壤溫度
(Soil temperature level 2)
K
stl4第四層(100~289公分)地溫/土壤溫度
(Soil temperature level 4)
K
istl1第一層(0~7公分)海冰溫度
(Ice temperature layer 1)
K
istl2第二層(7~28公分)海冰溫度
(Ice temperature layer 2)
K
istl3第三層(28~100公分)海冰溫度
(Ice temperature layer 3)
K
istl4第四層(100~150公分)海冰溫度
(Ice temperature layer 4)
K
flsr地表熱粗糙度預測對數
(Forecast logarithm of surface roughness for heat)
(無)
ishf地表瞬間可感熱通量
(Instantaneous surface sensible heat flux)
W m-2
ie地表瞬間水氣通量
(Instantaneous moisture flux)
kg m-2 s-1
alnid近紅外線(0.7~4 µm)漫射反照率[0~1]
(Near IR albedo for diffuse radiation)
(無)
alnip近紅外線(0.7~4 µm)直射反照率[0~1]
(Near IR albedo for direct radiation)
(無)
aluvd可見光/紫外線(0.3~0.7µm)漫射反照率[0~1]
(UV visible albedo for diffuse radiation)
(無)
aluvp可見光/紫外線(0.3~0.7µm)直射反照率[0~1]
(UV visible albedo for direct radiation)
(無)
cbh雲底高度
(Cloud base height)
m
hcc高雲覆蓋率[0~1]
(High cloud cover)
(無)
lcc低雲覆蓋率[0~1]
(Low cloud cover)
(無)
mcc中雲覆蓋率[0~1]
(Medium cloud cover)
(無)
tcc總雲覆蓋率[0~1]
(Total cloud cover)
(無)
tciw總雲冰量
(Total column cloud ice water)
kg m-2
tclw總雲水量
(Total column cloud liquid water)
kg m-2
viiwd總雲冰通量輻散度
(Total column vertically-integrated divergence of cloud frozen water flux)
kg m-2 s-1
vilwd總雲水通量輻散度
(Total column vertically-integrated divergence of cloud liquid water flux)
kg m-2 s-1
viiwe總東向雲冰通量
(Total column vertically-integrated eastward cloud frozen water flux)
kg m-1 s-1
vilwe總東向雲水通量
(Total column vertically-integrated eastward cloud liquid water flux)
kg m-1 s-1
viiwn總北向雲冰通量
(Total column vertically-integrated northward cloud frozen water flux)
kg m-1 s-1
vilwn總北向雲水通量
(Total column vertically-integrated northward cloud liquid water flux)
kg m-1 s-1
blh邊界層高度
(Boundary layer height)
m
deg0l大氣0°C等溫面之幾何高度
(Geometric height of 0 degrees C atmospheric isothermal level above ground)
m
cape對流可用位能
(Convective available potential energy)
J kg-1
cin對流抑制能
(Convective inhibition)
J kg-1
kxK指數
(K index)
K
totalxTT指數
(Total totals index)
K
lblt湖底溫度
(Lake bottom temperature)
K
cl湖泊覆蓋率[0~1]
(Lake cover)
(無)
dl湖泊總深度
(Lake total depth)
m
licd湖冰總深度
(Lake ice total depth)
m
lmld湖泊混合層深度
(Lake mix-layer depth)
m
lmlt湖泊混合層溫度
(Lake mix-layer temperature)
K
lshf湖泊垂直溫度剖面形狀
(Lake shape factor)
(無)
ltlt湖泊平均垂直溫度
(Lake total layer temperature)
K
asn積雪反照率[0~1]
(Snow albedo)
(無)
rsn積雪密度
(Snow density)
kg m-3
sd積雪深度(水當量)
(Snow depth)
m
tsn積雪層溫度
(Temperature of snow layer)
K
slt土壤類型
(Soil type)
(1: 粗、2: 中等、3: 中等至細、4: 細、5: 非常細、6: 有機、7: 熱帶有機)
(無)
swvl1第一層(0~7公分)土壤含水量
(Volumetric soil water layer 1)
m3 m-3
swvl2第二層(7~28公分)土壤含水量
(Volumetric soil water layer 2)
m3 m-3
swvl3第三層(28~100公分)土壤含水量
(Volumetric soil water layer 3)
m3 m-3
swvl4第四層(100~289公分)土壤含水量
(Volumetric soil water layer 4)
m3 m-3
vigd總重力位通量輻散度
(Total column vertically-integrated divergence of geopotential flux)
W m-2
viked總動能通量輻散度
(Total column vertically-integrated divergence of kinetic energy flux)
W m-2
vimad總質量通量輻散度
(Total column vertically-integrated divergence of mass flux)
kg m-2 s-1
vimdf總水氣通量輻散度
(Total column vertically-integrated divergence of moisture flux)
kg m-2 s-1
viozd總臭氧通量輻散度
(Total column vertically-integrated divergence of ozone flux)
kg m-2 s-1
vithed總熱通量輻散度
(Total column vertically-integrated divergence of heat flux)
W m-2
vited總能量通量輻散度
(Total column vertically-integrated divergence of total energy flux)
W m-2
vige總東向重力位通量
(Total column vertically-integrated eastward geopotential flux)
W m-1
vithee總東向熱通量
(Total column vertically-integrated eastward heat flux)
W m-1
vikee總東向動能通量
(Total column vertically-integrated eastward kinetic energy flux)
W m-1
vimae總東向總質量通量
(Total column vertically-integrated eastward mass flux)
kg m-1 s-1
vioze總東向臭氧通量
(Total column vertically-integrated eastward ozone flux)
kg m-1 s-1
vitee總東向總能量通量
(Total column vertically-integrated eastward total energy flux)
W m-1
viwve總東向水氣通量
(Total column vertically-integrated eastward water vapour flux)
kg m-1 s-1
viec總大氣能量轉換
(Total column vertically-integrated energy conversion)
W m-2
vike總大氣動能
(Total column vertically-integrated kinetic energy)
J m-2
vima總大氣質量
(Total column vertically-integrated mass of atmosphere)
kg m-2
vimat總大氣質量變化率
(Total column vertically-integrated mass tendency)
kg m-2 s-1
vign總北向重力位通量
(Total column vertically-integrated northward geopotential flux)
W m-1
vithen總北向熱通量
(Total column vertically-integrated northward heat flux)
W m-1
viken總北向動能通量
(Total column vertically-integrated northward kinetic energy flux)
W m-1
viman總北向質量通量
(Total column vertically-integrated northward mass flux)
kg m-1 s-1
viozn總北向臭氧通量
(Total column vertically-integrated northward ozone flux)
kg m-1 s-1
viten總北向總能量通量
(Total column vertically-integrated northward total energy flux)
W m-1
viwvn總北向水氣通量
(Total column vertically-integrated northward water vapour flux)
kg m-1 s-1
vipie總位能與內能和
(Total column vertically-integrated potential + internal energy)
J m-2
vipile總位能、內能與潛熱能
(Total column vertically-integrated potential + internal + latent energy)
J m-2
vit垂直溫度之總積分
(Total column vertically-integrated temperature)
K kg m-2
vithe大氣總焓
(Total column vertically-integrated enthalpy)
J m-2
vitoe垂直總能量之總積分
(Total column vertically-integrated total energy)
J m-2
tco3總臭氧量
(Total column ozone)
kg m-2
tcslw總過冷水量
(Total column supercooled liquid water)
kg m-2
tcwv總水氣量
(Total column vertically-integrated water vapour)
kg m-2
tcw總降水量
(Total column water)
kg m-2
cvh高植被覆蓋率[0~1]
(High vegetation cover)
*高植被:常綠樹、落葉樹、混合林、斷林
(無)
lai_hv高植被之樹葉面積指數
(Leaf area index, high vegetation)
*高植被:常綠樹、落葉樹、混合林、斷林
m2 m-2
cvl低植被覆蓋率[0~1]
(Low vegetation cover)
*低植被:農作物/混合農業、灌溉作物、短/高草、苔原、半沙漠、沼澤、常綠灌木、落葉灌木、水土混合物
(無)
lai_lv低植被之樹葉面積指數
(Leaf area index, low vegetation)
*低植被:農作物/混合農業、灌溉作物、短/高草、苔原、半沙漠、沼澤、常綠灌木、落葉灌木、水土混合物
m2 m-2
tvh高植被類型
(Type of high vegetation)
(0: 無高植被、3: 常綠針葉林、4: 落葉針葉林、5: 落葉闊葉林、6: 常綠闊葉林、18: 混合林、19: 斷林)
(無)
tvl低植被類型
(Type of low vegetation)
(0: 無低植被、1: 作物/混合農業、2: 草、7: 高草、9: 苔原、10: 灌溉作物、11: 半沙漠、13: 沼澤、16: 常綠灌木、17: 落葉灌木、20: 水土混合物)
(無)
anor次網格地形方向角
(Angle of sub-gridscale orography)
radians
isor次網格地形各向異性
(Anisotropy of sub-gridscale orography)
(無)
slor次網格地形坡度
(Slope of sub-gridscale orography)
(無)
sdor次網格地形高度標準差
(Standard deviation of sub-gridscale orography)
(無)
sdfor經濾波之次網格地形高度標準差
(Standard deviation of filtered subgrid orography)
m
chnkCharnock參數
(Charnock)
(無)
fal預測反照率[0~1]
(Forecast albedo)
(無)
fsr預測近地面層厚度
(Forecast surface roughness)
m
zust近地面層摩擦速度
(Friction velocity)
m s-1
iews東向紊流地表瞬間應力
(Instantaneous eastward turbulent surface stress)
N m-2
inss北向紊流地表瞬間應力
(Instantaneous northward turbulent surface stress)
N m-2
dctb大氣導管下邊界高度
(Duct base height)
m
tplb大氣導波層下邊界高度
(Trapping layer base height)
m
tplt大氣導波層上邊界高度
(Trapping layer top height)
m
dndza大氣導波層內折射度之平均垂直梯度
(Mean vertical gradient of refractivity inside trapping layer)
m-1
dndzn大氣導波層內折射度之最小垂直梯度
(Minimum vertical gradient of refractivity inside trapping layer)
m-1
lsm陸地覆蓋率[0~1]
(Land-sea mask)
(無)
siconc海冰覆蓋率[0~1]
(Sea ice area fraction)
(無)
src植被冠層、土壤表層總貯水量之水當量
(Skin reservoir content)
m