Original File is MS-Word Cloud.doc (MS Word File) made by Viet Nam Researchers. Translation to HTML was done by Dr. Agata, Univ. of Tokyo, Japan.
1998 04 09 06 48910 1008.7 31.9 23.7 90 3 -999 6 2 -9 -9 1998 04 09 06 48914 1008.8 33.8 22.0 90 1 -999 7 2 0 8 1998 04 09 06 48920 1004.5 30.7 29.4 90 6 -999 7 2 0 8 1998 04 09 12 48803 993.8 29.3 24.2 140 4 -999 0 -9 -9 -9 1998 04 09 12 48820 1005.9 27.2 23.7 140 3 -999 8 8 -9 -9 ... ... ... |
| Column No. | Description | Bytes (Characters) |
|---|---|---|
| 1 | Year | 4 |
| 2 | Months | 2 |
| 3 | Day | 2 |
| 4 | Hour | 2 |
| 5 | Station Index. See also stations list | 5 |
| 6 | Pressure | 6 |
| 7 | Temperature | 4 |
| 8 | Dewpoint | 4 |
| 9 | Wind direction | 3 |
| 10 | Wind speed | 2 |
| 11 | Rainfall | 4 |
| 12 | cloud amount, with reference to table 2700 below | 2 |
| 13 | Low cloud, with reference to table 0513 below | 2 |
| 14 | Medium cloud, with reference to table 0515 | 2 |
| 15 | High cloud , with reference to table 0509 | 2 |
| Station Number | Name |
|---|---|
| 48803 | Lao Cai |
| 48820 | Ha Noi |
| 48845 | Vinh |
| 48855 | Da Nang |
| 48866 | Playcu |
| 48875 | Buon Ma Thuot |
| 48877 | Nha Trang |
| 48910 | Can Tho |
| 48914 | Ca Mau |
| 48920 | Truong Sa |
N : cloud amount
Nh : The amound of cloud CL or the amount of cloud CM when
NS : The amount of cloud bank or cloud zone when having only C
| Code | Technical specification |
|---|---|
0 |
No cloud |
1 |
1/10 or less ,but should have cloud |
2 |
2/10 to 3/10 |
3 |
4/10 |
4 |
5/10 |
5 |
6/10 |
6 |
7/10 to 8/10 |
7 |
9/10 or more ,but not cover all |
8 |
10/10 |
9 |
Dark as frost or other atmospheric phenomena |
/ |
No cloud observation as other reason |
Remark : N = / only using at automatic station
CH: Clouds of the genera Cirrus, Cirrocumulus and Cirrostratus
| Codefigure | Technical specifications | Codefigure | Non - technical specifications |
|---|---|---|---|
| 0 | No CH clouds |
0 | No Cirrus (Ci), or cirrostratus (Cs) |
| 1 | Cirrus fibratus, sometimes uncinus, not progressively invading the sky | 1 | Cirrus (Ci) in the form of filaments, strands or hooks, not progressively invading the sky |
| 2 | Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus | 2 | Dense Cirrus (Ci), in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus (Cb); or Cirrus (Ci) with sproutings in the form of small turrets or battlements, or Cirrus (Ci) having the appearance of cumuliform tufts |
| 3 | Cirrus spissatus cumulonimbogenitus | 3 | Dense Cirrus(Ci), often in the form of an anvil, being the remains of the upper part of a Cumulonimbus (Cb) |
| 4 | Cirrus uncinus or fibratus, or both, progressively invading the sky; they generally thicken as a whole | 4 | Cirrus (Ci) in the form of hooks or of filaments, or both, progressively invading the sky; they generally become denser as a whole |
| 5 | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone,progressively invading the sky; they generally thicken as a whole, but the continuous veil does not reach 45 degrees above the horizon | 5 | Cirrus (Ci) (often in bands converging towards one point or two opposite points of the horizon) and Cirrostratus (Cs), or Cirrostratus (Cs) alone; in either case, they are progressively invading the sky, and generally growing denser as a whole, but the continuous veil does not reach 45 degrees above the horizon |
| 6 | Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone,progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered | 6 | Cirrus(Ci) (often in bands converging towards one point or two opposite points of the horizon) and Cirrostratus (Cs), or Cirrostratus (Cs) alone; in either case they are progressively invading the sky, and generally growing denser as a whole, the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered |
| 7 | Cirrostratus covering the whole sky | 7 | Veil of Cirrostratus (Cs) covering the celestial dome |
| 8 | Cirrostratus not progressively invading the sky, and not entirely covering it | 8 | Cirrostratus (Cs) not progressively invading the sky and not completely covering the the celestial dome |
| 9 | Cirrocumulus alone, or Cirrocumulus predominant among the CH clouds | 9 | Cirrocumulus (Cc) alone, or Cirrocumulus (Cc) accompanied by Cirrus (Ci), or Cirrostratus (Cs) or both, but Cirrocumulus (Cc)is predominant |
| / | CH Clouds invisible owing to darkness, fog, blowing dust or sand, or other similar phenomena,or because of a continuous layer of lower clouds |
/ | Cirrus (Ci), Cirrocumulus (Cc) and Cirrostratus (Cs) invisible owing to darkness, fog, blowing dust or sand, or other similar phenomena, or more often because of the presence of a continuous layer of lower clouds |
CL: Clouds of the genera Stratocumulus, Stratus, Cumulus and Cumulonimbus
| Codefigure | Technical specifications | Codefigure | Non - technical specifications |
|---|---|---|---|
| 0 | No CL clouds |
0 | No Stratocumulus (Sc), Stratus (St), and Cumulonimbus (Cb) |
| 1 | Cumulus humilis or Cumulus fractus other than of bad weather*, or both | 1 | Cumulus (Cu) with little vertical extent and seemingly flatened, or ragged Cumulus (Cu) other than of bad weather*, or both |
| 2 | Cumulus mediocris or congestus with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level | 2 | Cumulus (Cu) of moderate or strong vertical extent, generally with protuberances in the form of domes or towers, either accompanied or not by other Cumulus (Cu) or by Stracumulus (Sc) all having their bases at the same level |
| 3 | Cumulonimbus calvus, with or without Cumulus, Stracumulus or Stratus | 3 | Cumulonimbus (Cb) the summits of which, at least partially, lack sharp outlines but are neither clearly fibrous (cirriform) nor in the form of an anvil; Cumulus (Cu), Stracumulus (Sc) or Stratus (St) may also be present |
| 4 | Stracumulus cumulogentitus | 4 | Stracumulus (Sc) formed by the spreading out of Cumulus (Cu), Cumulus (Cu), may also be present |
| 5 | Stracumulus other than Stracumuluscumulogentitus | 5 | Stracumulus (Sc) not resulting from the spreading out of Cumulus (Cu) |
| 6 | Stratus nebulosus or Stratus fractus other than of bad weather*, or both | 6 | Stratus (St) in a more or less continuous sheet or layer, or in ragged shreds, or both but no Stratus (St) fractus of bad weather* |
| 7 | Stratus fractus or Cumulus fractus of bad weather* , or both (pannus), usually below Altostratus or Nimbostratus | 7 | Stratus (St) fractus of bad weather* or Cumulus (Cu) fractus of bad weather* , or both (pannus), usually below Altostratus (As) or Nimbostratus (Ns) |
| 8 | Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels | 8 | Cumulus (Cu) and Stratocumulus (Sc) other than that formed from the spreading out of Cumulus (Cu); the base of the Cumulus is at a different level from that of the Stratocumulus (Sc) |
| 9 | Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus Stratus or pannus | 9 | Cumulonimbus (Cb), the upper part of which is clearly fibrous (cirriform), often in the form of an anvil; either accompanied or not by Cumulonimbus (Cb) without anvil or fibrous upper part, Cumulus (Cu), Stratocumulus (Sc) Stratus (St) or pannus |
| / | CLCL Clouds invisible owing to darkness, fog, blowing dust or sand, or other similar phenomena |
/ | Stratocumulus (Sc) Stratus (St) Cumulus (Cu) and Cumulonimbus (Cb) invisible owing to darkness, fog, blowing dust or sand, or other similar phenomena |
* "Bad weather " denotes the conditions which generally exist during precipitation and a short time before and after
CM: Clouds of the genera Altocumulus, Altostratus and Nimbostratus
| Codefigure | Technical specifications | Codefigure | Non - technical specifications |
|---|---|---|---|
| 0 | No CM clouds |
0 | No Altocumulus (Ac), Altostratus (As) or Nimbostratus (Ns)
|
| 1 | Altostratus translucidus | 1 | Altostratus (As) the greater part of which is semitransparent; through this part the sun or moon may be weakly visible, as through ground glass |
| 2 | Altostratus opacus or Nimbostratus | 2 | Altostratus (As) the greater part of which is sufficiently dense to hide the sun or moon, or Nimbostratus (Ns) |
| 3 | Altocumulus translucidus at a single level | 3 | Altocumulus (Ac) the greater part of which is semitransparent; the variouselements of the cloud change only slowly and are all at a single level |
| 4 | Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels | 4 | Patches (oftenin the form of almonds or fish) of Altocumulus (Ac) the greater part of which is semitransparent; the clouds occur at one or more levels and the elements are continually changing in appearance |
| 5 | Altocumulus translucidus in bands, or one or more layers of Altocumulus translucidus or opacus, progressibly invading the sky; these Altocumulus clouds generally thicken as a whole | 5 | Semi-transparent Altocumulus (Ac) in bands, or Altocumulus (Ac), in one or more fairly continuous layer (Semi-transparent or opaque), progressibly invading the sky; these Altocumulus clouds generally thicken as a whole |
| 6 | Altocumulus cumulogentitus (or cumulonimbogentitus) | 6 | Altocumulus (Ac) resulting from the spreading out of Cumulus (Cu) (or Cumulonimbus (Cb) |
| 7 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressibly invading the sky, or Altocumulus with Altostratus or Nimbostratus | 7 | Altocumulus (Ac) in two or more layers, usually opaque in places , and not progressibly invading the sky or opaque layer of Altocumlus (Ac), not progressibly invading the sky, or Altocumulus (Ac) together with Altostratus (As) or Nimbostratus (Ns) |
| 8 | Altocumulus castellanus or floccus | 8 | Altocumulus (Ac) with proutings in the form of small towers or battlements, or Altocumulus (Ac) having the appaerance of cumuliform tufts |
| 9 | Altocumulus of a chaotic sky, generally at several levels | 9 | Altocumulus (Ac) of a chaotic sky, generally at several levels |
| / | CM Clouds invisible owing to darkness, fog, blowing dust or sand, or other similar phenomena,or because of a continuous layer of lower clouds |
/ | Altocumulus (Ac), Altostratus (As) and Nimbostratus (Ns) invisible owing to darkness, fog, blowing dust or sand, or other similar phenomena, or more often because of the presence of a continuous layer of lower clouds |