For the Analysis of Time-Spatial Data & Satellite Data
Yokohama, Japan – April 2, 2024 – O2, a new service that simplifies the visualization and sharing of geospatial data, has officially launched. It is designed to meet the needs of a wide range of users, from GIS professionals to business users and students.
Key Features
Easy-to-use interface – O2’s intuitive interface makes it easy for users to upload, visualize, and share geospatial data, even without prior GIS experience.
Wide range of data support – O2 supports a wide range of geospatial data formats, GeoJSON, CSV and GeoTiff (raster and vector data).
Seamless sharing – O2 makes it easy to share geospatial data with others via links or embeds.
Satellite data – O2 offers access to JAXA Earth API and NASA Earth Observations.
Otani & Co., Inc. is a geospatial data science company that provides a variety of services, including data visualization, analysis, and consulting. The company was founded in 2010 and is headquartered in Yokohama, Japan. The previously developed software “GEEO” that estimates property and land values with statistical algorithms and open data was awarded both The Encouragement Award for Open Data Application by the Minister for Internal Affairs and Communications and The Good Design Award, one of the prestigious awards for design in Japan.
A digital CV of Yuichiro Otani, a founder of Otani & Co., Inc., can be found in the link below:
This map visualizes cloud fraction around Brisbane throughout December 2023. White areas represent high cloud cover (1.00), while blue areas indicate thinner clouds (closer to 0.00). Refer to the legend for the exact color scale.
While some thinner cloud cover appeared intermittently, the month generally experienced significant cloudiness. Data was unavailable on the 2nd, 7th, 12th, 19th, 24th, and 31st. Only 7 days had completely clear skies: December 6th, 8th, 15th, 16th, 23rd, 28th, and 29th.
Focusing on the area closest to Brisbane City (north of the Story Bridge), we see the maximum cloud cover (1.00) occurred on December 1st, 14th, 15th, 17th, 21st, 22nd, 25th, and 30th. The lowest cloud cover (0.01) was recorded on December 11th.
You will access to the data from JAXA Earth API and NASA Earth Obseervation, and the details are written here. On O2, you will retrieve the data and create your own map. If you are interested in using the API (HTTP) from your codes, please feel free to contact us. For all the pandas users, two file formats, geojson and csv, are available.
The map below illustrates the Cloud Fraction around Brisbane Australia on December 2023. The data source is NASA Earth Observations.
You can create an account directly on O2 to access the data and visualizations.
The new API that is available inside O2 is going to be released soon!
At the time, you will retrieve the data from the two data sources, JAXA Earth API and NASA NEO. You will be notified via email and the blog article will be posted when it becomes public. The new blog post will contain the details of the API and a link to help. Plus, the two formats, geojson and csv, will be available when you request the data to the API. Using Python (pandas and geopandas), it will be easy to directly read the data from the urls.
In O2, you can use the data in two ways, Point (geojson has two properties, latitude and longitude ) and Polygon as you can click both of them on this map (the land surface temperature on January around Japan).
This map purposes to illustrate the sea surface temperature around New Zealand in 2023.
Month
n
Min
25%
50%
Mean
75%
Max
SD
Jan
48119
13.58
17.47
19.80
19.16
20.66
22.21
1.89
Feb
48119
14.59
18.24
20.32
19.64
21.05
22.18
1.71
Mar
48119
13.91
17.20
19.48
18.97
20.67
21.99
1.95
Apr
48119
11.72
15.39
18.07
17.51
19.58
21.09
2.38
May
48119
10.97
14.86
17.15
16.45
18.36
20.05
2.33
Jun
48119
9.58
13.77
15.97
15.18
16.96
18.99
2.28
Jul
48119
8.35
12.72
14.73
13.99
15.68
17.64
2.25
Aug
48119
7.86
12.05
13.90
13.21
14.87
16.69
2.23
Sep
48119
8.30
12.31
13.95
13.36
15.04
16.74
2.24
Oct
48119
8.45
12.39
14.16
13.63
15.44
17.03
2.24
Nov
48119
10.06
13.70
15.45
14.92
16.46
18.42
2.04
Dec
48119
10.93
14.93
16.83
16.45
18.28
20.20
2.25
SST around New Zealand
Although its fluctuation decreases, the mean of the sea surface temperature around New Zealand seems to gradually increase as the summer arrives in the southern hemisphere. This trend can be seen in other statistics as well.
This map shows the sea surface temperature around Japan from January to April 2023.
Month
n
Min
25%
50%
Mean
75%
Max
SD
Jan
219225
-1.37
11.94
19.23
17.14
22.76
26.76
6.80
Feb
215832
-1.81
10.88
18.43
16.42
22.15
26.05
6.95
Mar
210268
-1.32
11.65
19.04
17.12
22.41
26.06
6.47
Apr
222005
-1.04
12.29
19.28
17.59
23.25
27.03
6.75
SST around Japan
The mean and standard deviation, along with other statistics, show slight changes over time. However, the map and its legend reveal a more significant shift: the area with sea surface temperatures (SST) exceeding 25 degrees Celsius has been expanding. Counting the number of points with SST above 25 degrees Celsius highlighted this difference; points observed in April were four times the number of those in March. In contrast, the number of points with SST below 10 degrees Celsius has remained stable for four months. These contrasting trends in high and low temperature points motivate depicting histograms to visualize the data distribution.
This map shows the sea surface temperature around Japan from May to August 2023. The summarized data is on the table below.
Month
n
Min
25%
50%
Mean
75%
Max
SD
May
232069
0.46
14.96
20.49
19.13
24.33
28.60
6.52
Jun
237293
3.73
20.06
23.45
22.34
26.89
29.53
5.61
Jul
237578
8.30
23.93
27.28
25.71
29.16
30.47
4.47
Aug
237578
9.80
27.23
28.69
27.23
29.02
30.57
3.40
SST around Japan
The standard deviation gradually decreases while the mean increases as summer arrives in the northern hemisphere. This highlights one of the key points in time-series data analysis: carefully observing changes in standard deviation and exploring the reasons behind these shifts over time.
The purpose of this map is to illustrate the daytime land surface temperature from January 2022 to December 2023. The data had been collected by 8 days. The range was between -33.97 and 55.93 degrees Celsius. The highest temperatures reached over 55 degrees Celsius in August 2022. This was observed around Sendai area in Tohoku region. The data comes from JAXA Earth API., and the map was created using O2 to visualize this data.
You will directly create the account here, and then directly access to O2 from your page.
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